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NSR database version of April 11, 2024.

Search: Author = J.Aysto

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2023NI10      Phys.Rev.Lett. 131, 222503 (2023)

L.Nies, L.Canete, D.D.Dao, S.Giraud, A.Kankainen, D.Lunney, F.Nowacki, B.Bastin, M.Stryjczyk, P.Ascher, K.Blaum, R.B.Cakirli, T.Eronen, P.Fischer, M.Flayol, V.Girard Alcindor, A.Herlert, A.Jokinen, A.Khanam, U.Koster, D.Lange, I.D.Moore, M.Muller, M.Mougeot, D.A.Nesterenko, H.Penttila, C.Petrone, I.Pohjalainen, A.de Roubin, V.Rubchenya, Ch.Schweiger, L.Schweikhard, M.Vilen, J.Aysto

Further Evidence for Shape Coexistence in 79Znm near Doubly Magic 78Ni

ATOMIC MASSES 79Zn; measured frequencies, TOF; deduced the excitation energy of the 1/2+ isomer, the bandhead of a low-lying deformed structure akin to a predicted low-lying deformed band, shape coexistence. Comparison with state-of-the-art shell-model diagonalizations, complemented with discrete nonorthogonal shell-model calculations. The time-of-flight ion cyclotron resonance (TOF-ICR) method, the JYFLTRAP double Penning trap at the ion guide isotope separator on-line (IGISOL) facility in Jyvaskyla (Finland), and the multi-reflection time-of-flight mass spectrometer (MR-TOF MS) of ISOLTRAP at ISOLDE at CERN (Switzerland).

doi: 10.1103/PhysRevLett.131.222503
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Data from this article have been entered in the XUNDL database. For more information, click here.


2022GA10      Eur.Phys.J. A 58, 27 (2022)

Z.Gao, A.Al-Adili, L.Canete, T.Eronen, D.Gorelov, A.Kankainen, M.Lantz, A.Mattera, I.D.Moore, D.A.Nesterenko, H.Penttila, I.Pohjalainen, S.Pomp, V.Rakopoulos, S.Rinta-Antila, M.Vilen, J.Aysto, A.Solders

Benchmark of a multi-physics Monte Carlo simulation of an ion guide for neutron-induced fission products

NUCLEAR REACTIONS U(n, F), Ti(n, X), E<30 MeV; measured reaction products, Eγ, Iγ. 95Zr, 95Nb, 99Mo, 103Ru, 127Sb, 131,132I, 140Ba, 140La, 141Ce, 143Ce, 147Nd, 46Sc, 47Ca, 48Sc, 237U; deduced R values for each observed γ-ray transition belonging to fission products. Comparison with GEF, MCNPX and Geant4 calculations. The University of Jyvaskyla, the Ion Guide Isotope Separator On-Line (IGISOL) technique.

doi: 10.1140/epja/s10050-022-00676-z
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2022GI08      Phys.Lett. B 833, 137309 (2022)

S.Giraud, L.Canete, B.Bastin, A.Kankainen, A.F.Fantina, F.Gulminelli, P.Ascher, T.Eronen, V.Girard Alcindor, A.Jokinen, A.Khanam, I.D.Moore, D.A.Nesterenko, F.de Oliveira Santos, H.Penttila, C.Petrone, I.Pohjalainen, A.De Roubin, V.A.Rubchenya, M.Vilen, J.Aysto

Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae

ATOMIC MASSES 74,75Ni, 76,76m,77,78Cu, 79,79mZn; measured cyclotron resonance frequencies using time-of-flight ion-cyclotron-resonance (TOF-ICR) technique at the ISISOL-JYFLTRAP facility of the University of Jyvaskyla; deduced mass excesses, and compared with previously available experimental values and with AME2020 evaluation. Isotopes produced in U(p, F), E=35 MeV at the Ion-Guide Isotope Separator On-Line (IGISOL) facility in Jyvaskyla, followed by mass separation of fission fragments. Z=26-39, N=44-51; systematics of experimental and theoretical values of two-neutron shell-gap energies.

doi: 10.1016/j.physletb.2022.137309
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2022GU09      Phys.Rev. C 106, 014306 (2022)

V.Guadilla, L.Le Meur, M.Fallot, J.A.Briz, M.Estienne, L.Giot, A.Porta, A.Cucoanes, T.Shiba, A.-A.Zakari-Issoufou, A.Algora, J.L.Tain, J.Agramunt, D.Jordan, M.Monserrate, A.Montaner-Piza, E.Nacher, S.E.A.Orrigo, B.Rubio, E.Valencia, J.Aysto, T.Eronen, D.Gorelov, J.Hakala, A.Jokinen, A.Kankainen, V.Kolhinen, J.Koponen, I.Moore, H.Penttila, I.Pohjalainen, J.Reinikainen, M.Reponen, S.Rinta-Antila, K.Rytkonen, V.Sonnenschein, A.Voss, L.M.Fraile, V.Vedia, E.Ganioglu, W.Gelletly, M.Lebois, J.N.Wilson, T.Martinez, A.A.Sonzogni

Total absorption γ-ray spectroscopy of the β decays of 96gs, mY

RADIOACTIVITY 96,96mY(β-)[from U(p, F), followed by separation of fragments using IGISOL-JYFLTRAP double Penning trap system]; measured Eγ, Iγ, total absorption γ-spectrum (TAGS), βγ-coin using 18 NaI(Tl) crystals and a thin plastic β detector, fission products 96Sr, 96Y and 96mY, conversion electrons from the E0 g.s. transition from the 0+ excited state in 96Zr; deduced electron spectrum from a Monte Carlo simulation, experimental module-multiplicity-gated TAGS spectra, β-feedings to the g.s. and excited levels in 96Zr listed in the Supplemental Material of the paper, average γ , β, and conversion electron energies. Comparison with β feedings in the 96Y and 96mY decay datasets in the ENSDF database. Comparison of average γ , β, and conversion electron energies with those in the ENDF/B-VII.1 and JEFF-3.3 databases. 235U; deduced reactor antineutrino spectrum. 96mY; deduced as a major contributor to reactor decay heat in uranium-plutonium and thorium-uranium fuels around 10 s after fission pulses from reactor summation calculations.

doi: 10.1103/PhysRevC.106.014306
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2020CA08      Phys.Rev. C 101, 041304 (2020), Erratum Phys.Rev. C 103, 029901 (2021)

L.Canete, S.Giraud, A.Kankainen, B.Bastin, F.Nowacki, A.Poves, P.Ascher, T.Eronen, V.Alcindor, A.Jokinen, A.Khanam, I.D.Moore, D.A.Nesterenko, F.De Oliveira Santos, H.Penttila, C.Petrone, I.Pohjalainen, A.de Roubin, V.A.Rubchenya, M.Vilen, J.Aysto

Precision mass measurements of 67Fe and 69, 70Co: Nuclear structure toward N = 40 and impact on r-process reaction rates

ATOMIC MASSES 67Fe, 69,69m,70Co; measured mass excesses using time of flight-ion cyclotron resonance technique with the JYFLTRAP double Penning trap mass spectrometer. 69mCo; deduced level energy of 1/2- intruder state. Comparison with evaluated data in AME2016. Systematics of S(2n) values and two-neutron shell gap parameter for Z=25-28, N=35-45 nuclei.

NUCLEAR STRUCTURE 67,69,71Co; calculated levels, J, π using shell-model for the spherical and 1/2- intruder bands. Comparison with experimental data.

NUCLEAR REACTIONS 68Fe, 69Co(γ, n), T=0.5-5 GK; calculated astrophysical reaction rates, and mass-related uncertainties for the astrophysical r process calculations.

doi: 10.1103/PhysRevC.101.041304
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020GU26      Phys.Rev. C 102, 064304 (2020)

V.Guadilla, J.L.Tain, A.Algora, J.Agramunt, D.Jordan, M.Monserrate, A.Montaner-Piza, S.E.A.Orrigo, B.Rubio, E.Valencia, J.A.Briz, A.Cucoanes, M.Estienne, M.Fallot, L.Le Meur, A.Porta, T.Shiba, A.-A.Zakari-Issoufou, J.Aysto, T.Eronen, D.Gorelov, J.Hakala, A.Jokinen, A.Kankainen, V.S.Kolhinen, J.Koponen, I.D.Moore, H.Penttila, I.Pohjalainen, J.Reinikainen, M.Reponen, S.Rinta-Antila, K.Rytkonen, V.Sonnenschein, A.Voss, L.M.Fraile, V.Vedia, E.Ganioglu, W.Gelletly, M.Lebois, J.N.Wilson, T.Martinez, E.Nacher, A.A.Sonzogni

Determination of β-decay ground state feeding of nuclei of importance for reactor applications

RADIOACTIVITY 95Rb, 100,102mNb, 100,103Tc, 137I, 140Cs(β-); measured total absorption gamma spectra (TAGS) and 4πγ-β-coin using 18-fold segmented NaI(Tl) Decay Total Absorption γ-ray Spectrometer (DTAS), and a thick plastic scintillation detector for β radiation at the Ion Guide Isotope Separator On-Line (IGISOL) IV facility of the University of Jyvaskyla; deduced β- feeding to the ground states of daughter nuclei from TAGS as well as 4πγ-β-coin methods, and compared with evaluated data in the ENSDF database, and contribution to the reactor antineutrino spectra of 235U and 239Pu at different energies using the Nantes summation method. 87,88Br, 94Rb(β-); previously measured TAGS data used to standardize analysis procedures and determine various correction factors.

doi: 10.1103/PhysRevC.102.064304
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2020NE06      Phys.Lett. B 808, 135642 (2020)

D.A.Nesterenko, A.Kankainen, J.Kostensalo, C.R.Nobs, A.M.Bruce, O.Beliuskina, L.Canete, T.Eronen, E.R.Gamba, S.Geldhof, R.de Groote, A.Jokinen, J.Kurpeta, I.D.Moore, L.Morrison, Zs.Podolyak, I.Pohjalainen, S.Rinta-Antila, A.de Roubin, M.Rudigier, J.Suhonen, M.Vilen, V.Virtanen, J.Aysto

Three beta-decaying states in 128In and 130In resolved for the first time using Penning-trap techniques

ATOMIC MASSES 128,128m,130,130mIn; measured time-of-flight ion cyclotron resonance (TOF-ICR) frequencies for the ground states and two isomers each in 128In and 128In using the JYFLTRAP Penning trap at the IGISOL facility at the University of Jyvaskyla; deduced mass excesses of three beta-decaying states each in 128In and 130In, and energies of respective isomers, configurations. Activities of 128,130In produced as fission products in U(p, F), E=30 MeV at the Ion Guide Isotope Separator On-Line (IGISOL) facility. Comparison with literature values. 128Sn, 128In, 130In; calculated levels, J, π, configurations using shell-model with the effective interaction jj45pna, and compared with experimental data.

RADIOACTIVITY 128mIn(β-)[from U(p, F), E=30 MeV at the IGISOL facility]; measured Eγ, Iγ, βγ-coin, half-life of the new (16+) isomer of 128In. 128Sn; deduced levels, J, π.

COMPILATION 130,131,132,133,134Te, 129,130,131,132,133Sb, 128,129,130,131,132Sn, 127,128,129,130,131In, 126,127,128,129,130Cd; compiled ground and isomeric states using data from the ENSDF and XUNDL databases, together with results for In isomers in the present work.

doi: 10.1016/j.physletb.2020.135642
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019GU03      Phys.Rev.Lett. 122, 042502 (2019)

V.Guadilla, A.Algora, J.L.Tain, M.Estienne, M.Fallot, A.A.Sonzogni, J.Agramunt, J.Aysto, J.A.Briz, A.Cucoanes, T.Eronen, L.M.Fraile, E.Ganioglu, W.Gelletly, D.Gorelov, J.Hakala, A.Jokinen, D.Jordan, A.Kankainen, V.Kolhinen, J.Koponen, M.Lebois, L.Le Meur, T.Martinez, M.Monserrate, A.Montaner-Piza, I.Moore, E.Nacher, S.E.A.Orrigo, H.Penttila, I.Pohjalainen, A.Porta, J.Reinikainen, M.Reponen, S.Rinta-Antila, B.Rubio, K.Rytkonen, T.Shiba, V.Sonnenschein, E.Valencia, V.Vedia, A.Voss, J.N.Wilson, A.-A.Zakari-Issoufou

Large Impact of the Decay of Niobium Isomers on the Reactor ν-bare Summation Calculations

RADIOACTIVITY 100,102Nb(β-); measured decay products, Eγ, Iγ. 239,241Pu, 235,238U; deduced β-intensity distributions, potential impact on reactor antineutrino spectra as a function of energy.

doi: 10.1103/PhysRevLett.122.042502
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019GU20      Phys.Rev. C 100, 024311 (2019)

V.Guadilla, A.Algora, J.L.Tain, J.Agramunt, J.Aysto, J.A.Briz, A.Cucoanes, T.Eronen, M.Estienne, M.Fallot, L.M.Fraile, E.Ganioglu, W.Gelletly, D.Gorelov, J.Hakala, A.Jokinen, D.Jordan, A.Kankainen, V.Kolhinen, J.Koponen, M.Lebois, L.Le Meur, T.Martinez, M.Monserrate, A.Montaner-Piza, I.Moore, E.Nacher, S.E.A.Orrigo, H.Penttila, I.Pohjalainen, A.Porta, J.Reinikainen, M.Reponen, S.Rinta-Antila, B.Rubio, K.Rytkonen, P.Sarriguren, T.Shiba, V.Sonnenschein, A.A.Sonzogni, E.Valencia, V.Vedia, A.Voss, J.N.Wilson, A.-A.Zakari-Issoufou

Total absorption γ-ray spectroscopy of niobium isomers

RADIOACTIVITY 100,100m,102,102mNb, 100,102Zr, 103Tc(β-)[from U(p, F), E=25 MeV at the IGISOL facility and JYFLTRAP double Penning trap system at the university of Jyvaskyla]; measured Eγ, Iγ, Eβ, βγ-coin, total absorption γ spectrum using Decay Total Absorption γ-ray Spectrometer (DTAS) with 18 NaI(Tl) crystals, a plastic β detector and an HPGe detector; deduced average γ and β energies, impact on antineutrino spectrum summation calculations. Comparison with evaluated data in ENSDF, ENDF/B-VII.1 and JEFF-3.1.1 databases. 100,100mNb, 102Nb(β-); deduced absolute γ-intensities deexciting the main levels in 100,102Mo, and compared to data in the ENSDF database.

doi: 10.1103/PhysRevC.100.024311
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019GU29      Phys.Rev. C 100, 044305 (2019)

V.Guadilla, J.L.Tain, A.Algora, J.Agramunt, D.Jordan, M.Monserrate, A.Montaner-Piza, E.Nacher, S.E.A.Orrigo, B.Rubio, E.Valencia, M.Estienne, M.Fallot, L.Le Meur, J.A.Briz, A.Cucoanes, A.Porta, T.Shiba, A.-A.Zakari-Issoufou, A.A.Sonzogni, J.Aysto, T.Eronen, D.Gorelov, J.Hakala, A.Jokinen, A.Kankainen, V.S.Kolhinen, J.Koponen, I.D.Moore, H.Penttila, I.Pohjalainen, J.Reinikainen, M.Reponen, S.Rinta-Antila, K.Rytkonen, V.Sonnenschein, A.Voss, L.M.Fraile, V.Vedia, E.Ganioglu, W.Gelletly, M.Lebois, J.N.Wilson, T.Martinez

Total absorption γ-ray spectroscopy of the β-delayed neutron emitters 137I and 95Rb

RADIOACTIVITY 95Rb, 137I(β-), (β-n)[from U(p, X), E=25 MeV, and separated using IGISOL separator and JYFL trap at Jyvaskyla]; measured Eγ, Iγ, total-absorption γ (TAGS) spectra, β-gated TAGS spectra using Decay Total Absorption γ-ray Spectrometer (DTAS) with 18 NaI(Tl) crystals, a plastic β detector and an HPGe detector; deduced β-intensity distributions, absolute γ intensities per 100 decays for the main levels populated in daughter nuclei, integral Iβγ or Pγ values above S(n), competition of γ and neutron emissions above S(n) and compared with Hauser-Feshbach calculations, average γ and β energies; evaluated impact of the present results on reactor antineutrino summation calculations. Comparison with previous experimental data, and with evaluated data in ENSDF, ENDF/B-VII.1 and JEFF-3.1.1.

doi: 10.1103/PhysRevC.100.044305
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2019KI08      Phys.Rev.Lett. 123, 262701 (2019)

O.S.Kirsebom, S.Jones, D.F.Stromberg, G.Martinez-Pinedo, K.Langanke, F.K.Ropke, B.A.Brown, T.Eronen, H.O.U.Fynbo, M.Hukkanen, A.Idini, A.Jokinen, A.Kankainen, J.Kostensalo, I.Moore, H.Moller, S.T.Ohlmann, H.Penttila, K.Riisager, S.Rinta-Antila, P.C.Srivastava, J.Suhonen, W.H.Trzaska, J.Aysto

Discovery of an Exceptionally Strong β-Decay Transition of 20F and Implications for the Fate of Intermediate-Mass Stars

RADIOACTIVITY 20F(β-) [from 19F(d, X), E=6 MeV]; measured decay products, Eβ, Iβ; deduced transition strength.

doi: 10.1103/PhysRevLett.123.262701
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018BU16      Phys.Rev. C 98, 064320 (2018)

B.Bucher, H.Mach, A.Aprahamian, L.M.Robledo, G.S.Simpson, J.Rissanen, D.G.Ghita, B.Olaizola, W.Kurcewicz, J.Aysto, T.Eronen, L.M.Fraile, A.Jokinen, P.Karvonen, I.D.Moore, H.Penttila, M.Reponen, E.Ruchowska, A.Saastamoinen, M.K.Smith, C.Weber

New insights into triaxiality and shape coexistence from odd-mass 109Rh

RADIOACTIVITY 109Ru(β-)[from U(p, F), E=30 MeV]; measured Eγ, Iγ, γγ-coin, level half-lives using fast timing βγγ(t) technique at the IGISOL facility of University of Jyvaskyla. 109Rh; deduced levels, J, π, B(M1), B(E2).

NUCLEAR STRUCTURE 109Rh; calculated potential energy surface (PES) in (β, γ) plane, proton single-particle energies as function of deformation parameters Q0 and γ, minimum energy E(β, γ) for the different blocked configurations using HFB method.

doi: 10.1103/PhysRevC.98.064320
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018CA22      Phys.Rev. C 98, 034310 (2018)

R.Caballero-Folch, I.Dillmann, J.Agramunt, J.L.Tain, A.Algora, J.Aysto, F.Calvino, L.Canete, G.Cortes, C.Domingo-Pardo, T.Eronen, E.Ganioglu, W.Gelletly, D.Gorelov, V.Guadilla, J.Hakala, A.Jokinen, A.Kankainen, V.Kolhinen, J.Koponen, M.Marta, E.Mendoza, A.Montaner-Piza, I.Moore, C.R.Nobs, S.E.A.Orrigo, H.Penttila, I.Pohjalainen, J.Reinikainen, A.Riego, S.Rinta-Antila, B.Rubio, P.Salvador-Castineira, V.Simutkin, A.Tarifeno-Saldivia, A.Tolosa-Delgado, A.Voss

First determination of β-delayed multiple neutron emission beyond A-100 through direct neutron measurement: The P2n value of 136Sb

RADIOACTIVITY 136Sb(β-), (β-n), (β-2n), 136Te(β-), (β-n)[from U(p, F), E=25 MeV]; measured Eβ-, Iβ-, E(n), I(n), β- and neutron time correlated events, %β-n (or P1n) for decays of 136Sb and 136Te, and %β-2n (or P2n) for decay of 136Sb using JYFLTRAP Penning trap for isotope separation, plastic scintillator for β detection, and BELEN array of 3He counter tubes for neutron detection at the University of Jyvaskyla accelerator facility. Comparison with previous experimental values, evaluated data, and with several theoretical predictions.

doi: 10.1103/PhysRevC.98.034310
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23441. Data from this article have been entered in the XUNDL database. For more information, click here.


2018MA24      Eur.Phys.J. A 54, 33 (2018)

A.Mattera, S.Pomp, M.Lantz, V.Rakopoulos, A.Solders, A.Al-Adili, H.Penttila, I.D.Moore, S.Rinta-Antila, T.Eronen, A.Kankainen, I.Pohjalainen, D.Gorelov, L.Canete, D.Nesterenko, M.Vilen, J.Aysto

Production of Sn and Sb isotopes in high-energy neutron-induced fission of natU

NUCLEAR REACTIONS U(n, F), E=30 MeV[end energy of white neutron spectrum30 MeV, weighted neutron energy about 12 MeV]; measured Eγ, Iγ. 129,130,131Sn, 130,132Sb; deduced cumulative fission yields, isomeric yield ratios, calculated yields using GEF model. Compared with other data and with ENDF/B-VII.1, JEFF 3.1.1.

doi: 10.1140/epja/i2018-12462-1
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23414.


2018VI02      Phys.Rev.Lett. 120, 262701 (2018)

M.Vilen, J.M.Kelly, A.Kankainen, M.Brodeur, A.Aprahamian, L.Canete, T.Eronen, A.Jokinen, T.Kuta, I.D.Moore, M.R.Mumpower, D.A.Nesterenko, H.Penttila, I.Pohjalainen, W.S.Porter, S.Rinta-Antila, R.Surman, A.Voss, J.Aysto

Precision Mass Measurements on Neutron-Rich Rare-Earth Isotopes at JYFLTRAP: Reduced Neutron Pairing and Implications for r-Process Calculations

ATOMIC MASSES 156,158Nd, 158,160Pm, 162Sm, 162,163Eu, 163,164,165,166Gd, 164Tb; measured time-of-flight spectra, frequency ratios; deduced mass-excess values. Comparison with AME16 evaluation.

doi: 10.1103/PhysRevLett.120.262701
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2017CA09      Acta Phys.Pol. B48, 517 (2017)

R.Caballero-Folch, I.Dillmann, J.Agramunt, J.L.Tain, C.Domingo-Pardo, A.Algora, J.Aysto, F.Calvino, L.Canete, G.Cortes, T.Eronen, E.Ganioglu, W.Gelletly, D.Gorelov, V.Guadilla, J.Hakala, A.Jokinen, A.Kankainen, V.Kolhinen, J.Koponen, M.Marta, E.Mendoza, A.Montaner-Piza, I.Moore, Ch.Nobs, S.Orrigo, H.Penttila, I.Pohjalainen, J.Reinikainen, A.Riego, S.Rinta-Antila, B.Rubio, P.Salvador-Castineira, V.Simutkin, A.Voss

First Evidence of Multiple β-delayed Neutron Emission for Isotopes with A > 100

NUCLEAR REACTIONS 238U(p, x), E=25 MeV; measured (after selecting isotopes of interest) Iβ, β-delayed In, En, In, nn correlations using BELEN neutron detector; deduced the heaviest β2n emitter measured so far, namely 136Sb.

doi: 10.5506/APhysPolB.48.517
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23395.


2017ER01      Phys.Rev. C 95, 025501 (2017); Pub.Note Phys.Rev. C 102, 039902 (2020)

T.Eronen, J.C.Hardy, L.Canete, A.Jokinen, J.Hakala, A.Kankainen, V.S.Kolhinen, J.Koponen, I.D.Moore, I.M.Murray, H.Penttila, I.Pohjalainen, O.Poleshchuk, J.Reinikainen, S.Rinta-Antila, N.Soukouti, A.Voss, J.Aysto

QEC value of the superallowed β emitter 42Sc

ATOMIC MASSES 42,42mSc, 42Ca; measured cyclotron frequency ratios using time-of-flight ion-cyclotron resonance (TOF-ICR) technique at IGISOL-JYFLTRAP facility at Jyvaskyla; deduced precise Q values and compared with previous experimental data, precise energy of the 7+ isomeric state in 42Sc; discussed error budgets for Ft values of superallowed β transition in 42Sc.

doi: 10.1103/PhysRevC.95.025501
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2017GU07      Acta Phys.Pol. B48, 529 (2017)

V.Guadilla, A.Algora, J.L.Tain, J.Agramunt, J.Aysto, J.A.Briz, A.Cucoanes, T.Eronen, M.Estienne, M.Fallot, L.M.Fraile, E.Ganioglu, W.Gelletly, D.Gorelov, J.Hakala, A.Jokinen, D.Jordan, A.Kankainen, V.Kolhinen, J.Koponen, M.Lebois, T.Martinez, M.Monserrate, A.Montaner-Piza, I.Moore, E.Nacher, S.E.A.Orrigo, H.Penttila, I.Pohjalainen, A.Porta, J.Reinikainen, M.Reponen, S.Rinta-Antila, B.Rubio, K.Rytkonen, T.Shiba, V.Sonnenschein, A.A.Sonzogni, E.Valencia, V.Vedia, A.Voss, J.N.Wilson, A.-A.Zakari-Issoufou

Study of the β Decay of Fission Products with the DTAS Detector

RADIOACTIVITY 103Mo, 103Tc(β-)[from U(p, f) reaction]; measured β-decay of both nuclei using DTAS (segmented Decay Total Absorption Gamma-Ray Spectrometer) detector;deduced mean γ-decay and β-decay energy, new β intensity (at high-energy end) not detected in previous measurements with Ge detectors. Mean energies compared with ENSDF.

doi: 10.5506/APhysPolB.48.529
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2017GU17      Phys.Rev. C 96, 014319 (2017)

V.Guadilla, A.Algora, J.L.Tain, J.Agramunt, D.Jordan, A.Montaner-Piza, S.E.A.Orrigo, B.Rubio, E.Valencia, J.Suhonen, O.Civitarese, J.Aysto, J.A.Briz, A.Cucoanes, T.Eronen, M.Estienne, M.Fallot, L.M.Fraile, E.Ganioglu, W.Gelletly, D.Gorelov, J.Hakala, A.Jokinen, A.Kankainen, V.Kolhinen, J.Koponen, M.Lebois, T.Martinez, M.Monserrate, I.Moore, E.Nacher, H.Penttila, I.Pohjalainen, A.Porta, J.Reinikainen, M.Reponen, S.Rinta-Antila, K.Rytkonen, T.Shiba, V.Sonnenschein, A.A.Sonzogni, V.Vedia, A.Voss, J.N.Wilson, A.-A.Zakari-Issoufou

Experimental study of 100Tc β decay with total absorption γ-ray spectroscopy

RADIOACTIVITY 100Tc(β-)[from 100Mo(p, n), E=8 MeV]; measured Eγ, Iγ, β spectrum using a vase-shaped plastic scintillator, βγ-coin, total absorption TAGS γ spectra using Decay Total Absorption γ-ray Spectrometer (DTAS), IGISOL-IV mass separator and JYFLTRAP Penning trap at the University of Jyvaskyla cyclotron facility; deduced β-intensity distribution extracted from the TAGS analysis, β feedings to g.s. and excited states of 100Ru, logft. Comparison with high-resolution decay data in the ENSDF database at NNDC-BNL, and with quasiparticle random-phase approximation calculations. Benchmark for calculations of the double β decay of 100Mo.

doi: 10.1103/PhysRevC.96.014319
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2017NE05      J.Phys.(London) G44, 065103 (2017)

D.A.Nesterenko, A.Kankainen, L.Canete, M.Block, D.Cox, T.Eronen, C.Fahlander, U.Forsberg, J.Gerl, P.Golubev, J.Hakala, A.Jokinen, V.S.Kolhinen, J.Koponen, N.Lalovic, C.Lorenz, I.D.Moore, P.Papadakis, J.Reinikainen, S.Rinta-Antila, D.Rudolph, L.G.Sarmiento, A.Voss, J.Aysto

High-precision mass measurements for the isobaric multiplet mass equation at A = 52

ATOMIC MASSES 52Co, 52mCo, 52Fe, 52mFe, 52Mn; measured time-of-flight ion cyclotron resonance spectrum, average cyclotron frequency ratios; deduced mass-excess values. Comparison with Nubase2012 mass values.

doi: 10.1088/1361-6471/aa67ae
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2017RI08      Phys.Rev. C 96, 014320 (2017)

S.Rice, A.Algora, J.L.Tain, E.Valencia, J.Agramunt, B.Rubio, W.Gelletly, P.H.Regan, A.-A.Zakari-Issoufou, M.Fallot, A.Porta, J.Rissanen, T.Eronen, J.Aysto, L.Batist, M.Bowry, V.M.Bui, R.Caballero-Folch, D.Cano-Ott, V.-V.Elomaa, E.Estevez, G.F.Farrelly, A.R.Garcia, B.Gomez-Hornillos, V.Gorlychev, J.Hakala, M.D.Jordan, A.Jokinen, V.S.Kolhinen, F.G.Kondev, T.Martinez, P.Mason, E.Mendoza, I.Moore, H.Penttila, Zs.Podolyak, M.Reponen, V.Sonnenschein, A.A.Sonzogni, P.Sarriguren

Total absorption spectroscopy study of the β decay of 86Br and 91Rb

RADIOACTIVITY 86Br, 91Rb(β-)[from U(p, F), E not given, radioactive beams purified by JYFLTRAP Penning trap at Jyvaskyla]; measured Eγ, Iγ, βγ-coin, total absorption gamma spectrum (TAGS) using Valencia-Surrey Total Absorption Spectrometer Rocinante at the IGISOL facility of the University of Jyvaskyla; deduced mean average energy for β particles and γ rays, β spectra, B(GT) strengths, impact of the investigated decays in the prediction of decay heat and antineutrino spectrum from nuclear reactors. Comparison with previous experimental data, with the evaluated high-resolution decay data in the ENSDF database at NNDC-BNL, and with quasiparticle random-phase approximation calculations.

doi: 10.1103/PhysRevC.96.014320
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2017UR03      Phys.Rev. C 96, 044333 (2017)

W.Urban, M.Czerwinski, J.Kurpeta, T.Rzaca-Urban, J.Wisniewski, T.Materna, L.W.Iskra, A.G.Smith, I.Ahmad, A.Blanc, H.Faust, U.Koster, M.Jentschel, P.Mutti, T.Soldner, G.S.Simpson, J.A.Pinston, G.de France, C.A.Ur, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, J.Rissanen, A.Saastamoinen, J.Szerypo, C.Weber, J.Aysto

Shape coexistence in the odd-odd nucleus 98Y: The role of the g9/2 neutron extruder

NUCLEAR REACTIONS 235U(n, F), E=cold neutrons from PF1B facility at ILL Grenoble; measured Eγ, Iγ, γγ-coin, delayed γγ-coin, half-lives of several isomers in 98Y using the EXILL array at Grenoble. 98Y; deduced levels, isomers, J, π, bands, configurations, deformed and spherical isomers.

RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ), γγ-coin with γ rays from fission partner 147La in 248Cm SF decay using Eurogam2 array at Grenoble and Gammasphere array at Argonne. 98Y; deduced levels, J, π, multipolarities. 98Sr, 98,98mY(β-)[from 235U(n, F), E=cold neutrons and using Lohengrin fission-fragment separator]; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(linear pol), half-lives of decays of 98Sr, 98Y and 98Y isomer, excitation energy of the 2.36-s isomer in 98Y by using JYFLTRAP Penning trap at Jyvaskyla accelerator facility, . 98Y, 98Zr; deduced levels, J, π, multipolarities, mixing ratios, β feedings, logft, configurations. Comparison of negative-parity levels in 98Y with Interacting Boson Fermion Fermion Model (IBFFM) and Quasi-Particle Rotor Model (QPRM) calculations.

doi: 10.1103/PhysRevC.96.044333
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2017VA04      Phys.Rev. C 95, 024320 (2017)

E.Valencia, J.L.Tain, A.Algora, J.Agramunt, E.Estevez, M.D.Jordan, B.Rubio, S.Rice, P.Regan, W.Gelletly, Z.Podolyak, M.Bowry, P.Mason, G.F.Farrelly, A.Zakari-Issoufou, M.Fallot, A.Porta, V.M.Bui, J.Rissanen, T.Eronen, I.Moore, H.Penttila, J.Aysto, V.-V.Elomaa, J.Hakala, A.Jokinen, V.S.Kolhinen, M.Reponen, V.Sonnenschein, D.Cano-Ott, A.R.Garcia, T.Martinez, E.Mendoza, R.Caballero-Folch, B.Gomez-Hornillos, V.Gorlychev, F.G.Kondev, A.A.Sonzogni, L.Batist

Total absorption γ-ray spectroscopy of the β- delayed neutron emitters 87Br, 88Br, and 94Rb

RADIOACTIVITY 87,88Br, 94Rb(β-)[from U(p, F), E=25 MeV]; measured β-gated Eγ, Iγ, total absorption γ spectra (TAGS) using Rocinante TAS, IGISOL mass separator and JYFLTRAP Penning Trap at the University of Jyvaskyla cyclotron facility. 87Kr, 88Kr, 94Sr; deduced Iβ, β feedings, average γ- and β-decay energies, gamma-to-neutron branching ratio, reactor decay heat impact, reactor antineutrino spectrum impact. Comparison with previous data, and with Hauser-Feshbach calculations. Tables of the β-intensity distributions deduced in this work are supplied in supplementary file.

doi: 10.1103/PhysRevC.95.024320
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2016ER05      Prog.Part.Nucl.Phys. 91, 259 (2016)

T.Eronen, A.Kankainen, J.Aysto

Ion traps in nuclear physics-Recent results and achievements

doi: 10.1016/j.ppnp.2016.08.001
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2016GU22      Nucl.Instrum.Methods Phys.Res. B376, 334 (2016)

V.Guadilla, A.Algora, J.L.Tain, J.Agramunt, J.Aysto, J.A.Briz, D.Cano-Ott, A.Cucoanes, T.Eronen, M.Estienne, M.Fallot, L.M.Fraile, E.Ganioglu, W.Gelletly, D.Gorelov, J.Hakala, A.Jokinen, D.Jordan, A.Kankainen, V.Kolhinen, J.Koponen, M.Lebois, T.Martinez, M.Monserrate, A.Montaner-Piza, I.Moore, E.Nacher, S.Orrigo, H.Penttila, Zs.Podolyak, I.Pohjalainen, A.Porta, P.Regan, J.Reinikainen, M.Reponen, S.Rinta-Antila, B.Rubio, K.Rytkonen, T.Shiba, V.Sonnenschein, A.A.Sonzogni, E.Valencia, V.Vedia, A.Voss, J.N.Wilson, A.-A.Zakari-Issoufou

First experiment with the NUSTAR/FAIR Decay Total Absorption γ-Ray Spectrometer (DTAS) at the IGISOL IV facility

RADIOACTIVITY 137I(β-n); measured decay products, Eγ, Iγ, Eβ, Iβ; deduced mean β- and γ-ray energies, branching ratios. Comparison with ENSDF library.

doi: 10.1016/j.nimb.2015.12.018
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2016KA15      Phys.Rev. C 93, 041304 (2016)

A.Kankainen, L.Canete, T.Eronen, J.Hakala, A.Jokinen, J.Koponen, I.D.Moore, D.Nesterenko, J.Reinikainen, S.Rinta-Antila, A.Voss, J.Aysto

Mass of astrophysically relevant 31Cl and the breakdown of the isobaric multiplet mass equation

ATOMIC MASSES 31Cl; measured TOF-ICR spectrum, and mass excess using JYFLTRAP double-Penning-trap mass spectrometer at the IGISOL facility in Jvyaskyla; analyzed isobaric multiplet mass equation (IMME) for T=3/2 quartet for A=31 nuclei 31Cl, 31S, 31P and 31Si; deduced breakdown of the IMME. 31Cl; deduced S(p), levels.

NUCLEAR REACTIONS 32S(p, 2n)31Cl, E=40 MeV; measured mass excess of 31Cl at the IGISOL facility in Jvyaskyla. 31Cl(γ, p)30S, T9=0.2-1.4; deduced reaction rates for typical XRB conditions. Relevance to rapid proton capture process in type-I x-ray bursts.

doi: 10.1103/PhysRevC.93.041304
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2016PE05      Eur.Phys.J. A 52, 104 (2016)

H.Penttila, D.Gorelov, V.-V.Elomaa, T.Eronen, U.Hager, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, I.D.Moore, J.Parkkonen, K.Perajarvi, I.Pohjalainen, S.Rahaman, S.Rinta-Antila, J.Rissanen, V.A.Rubchenya, A.Saastamoinen, V.Simutkin, T.Sonoda, C.Weber, A.Voss, J.Aysto

Independent isotopic yields in 25 MeV and 50 MeV proton-induced fission of natU

NUCLEAR REACTIONS U(p, F), E=25, 50 MeV; measured fission products using JYFLTRAP facility; deduced isotope yields from Zn to La. Compared with other measurements.

doi: 10.1140/epja/i2016-16104-4
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2015BU15      Phys.Rev. C 92, 064312 (2015)

B.Bucher, H.Mach, A.Aprahamian, G.S.Simpson, J.Rissanen, D.G.Ghita, B.Olaizola, W.Kurcewicz, J.Aysto, I.Bentley, T.Eronen, L.M.Fraile, A.Jokinen, P.Karvonen, I.D.Moore, H.Penttila, M.Reponen, E.Ruchowska, A.Saastamoinen, M.K.Smith, C.Weber

New lifetime measurements in 109Pd and the onset of deformation at N=60

RADIOACTIVITY 109Rh(β-)[from U(p, F), E=30 MeV at IGISOL facility of University of Jyvaskyla]; measured Eγ, Iγ, γγ-, βγγ-coin, level half-lives by fast timing βγγ(t) technique. 109Pd; deduced levels, J, π, configuration, B(M1), B(E2), B(E1); discussed strong pn interaction between πg9/2 and νg7/2 valence nucleons. Systematics of band structures, (d, p) and (d, t) spectroscopic strengths in 101,103,105,107,109,111Pd. Systematics of 7/2+ and 5/2+ states in odd-A Pd, Rh and Ag isotopes.

doi: 10.1103/PhysRevC.92.064312
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2015GO14      Bull.Rus.Acad.Sci.Phys. 79, 869 (2015); Izv.Akad.Nauk RAS, Ser.Fiz 79, 963 (2015)

D.Gorelov, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, V.Kolhinen, M.Lantz, A.Mattera, I.Moore, H.Penttila, I.Pohjalainen, S.Pomp, M.Reponen, S.Rinta-Antila, V.Rubchenya, A.Saastamoinen, V.Simutkin, A.Solders, V.Sonnenschein, J.Aysto

Measuring independent yields of fission products using a penning trap

NUCLEAR REACTIONS 232Th(p, F), E=25 MeV; measured fission products; deduced σ, yields. Comparison with FIPRODY model.

doi: 10.3103/S1062873815070114
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2015TA17      Phys.Rev.Lett. 115, 062502 (2015)

J.L.Tain, E.Valencia, A.Algora, J.Agramunt, B.Rubio, S.Rice, W.Gelletly, P.Regan, A.-A.Zakari-Issoufou, M.Fallot, A.Porta, J.Rissanen, T.Eronen, J.Aysto, L.Batist, M.Bowry, V.M.Bui, R.Caballero-Folch, D.Cano-Ott, V.-V.Elomaa, E.Estevez, G.F.Farrelly, A.R.Garcia, B.Gomez-Hornillos, V.Gorlychev, J.Hakala, M.D.Jordan, A.Jokinen, V.S.Kolhinen, F.G.Kondev, T.Martinez, E.Mendoza, I.Moore, H.Penttila, Zs.Podolyak, M.Reponen, V.Sonnenschein, A.A.Sonzogni

Enhanced γ-Ray Emission from Neutron Unbound States Populated in β Decay

RADIOACTIVITY 87,88Br, 94Rb(β-), (β-n); measured decay products, Eβ, Iβ, En, In, Eγ, Iγ; deduced γ-ray branching ratio. Comparison with Hauser-Feshbach statistical calculations.

doi: 10.1103/PhysRevLett.115.062502
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2014AG12      Nucl.Data Sheets 120, 74 (2014)

J.Agramunt, A.R.Garcia, A.Algora, J.Aysto, R.Caballero-Folch, F.Calvino, D.Cano-Ott, G.Cortes, C.Domingo-Pardo, T.Eronen, W.Gelletly, M.B.Gomez Hornillos, J.Hakala, A.Jokinen, D.Jordan, A.Kankainen, V.Kolkinen, T.Martinez, P.J.Mason, I.Moore, H.Penttila, Zs.Podolyak, M.Reponen, A.Riego, J.Rissanen, B.Rubio, A.Saastamoinen, J.L.Tain, E.Valencia

New Beta-delayed Neutron Measurements in the Light-mass Fission Group

RADIOACTIVITY 91Br, 85,86As, 85Ge(β-), (β-n); measured decay products, Eγ, Iγ, Eβ, Ib, En, In.; deduced β-delayed neutron emission probabilities. Comparison with available data.

doi: 10.1016/j.nds.2014.07.010
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2014AL15      Nucl.Data Sheets 120, 12 (2014)

A.Algora, E.Valencia, J.L.Tain, M.D.Jordan, J.Agramunt, B.Rubio, E.Estevez, F.Molina, A.Montaner, V.Guadilla, M.Fallot, A.Porta, A.-A.Zakari-Issoufou, V.M.Bui, S.Rice, Zs.Podolyak, P.H.Regan, W.Gelletly, M.Bowry, P.Mason, G.F.Farrelly, J.Rissanen, T.Eronen, I.Moore, H.Penttila, J.Aysto, V.Eloma, J.Hakala, A.Jokinen, V.Kolkinen, M.Reponen, V.Sonnenschein, D.Cano-Ott, T.Martinez, E.Mendoza, A.R.Garcia, M.B.Gomez Hornillos, V.Gorlychev, R.Caballero-Folch, F.G.Kondev, A.A.Sonzogni

Total Absorption Study of Beta Decays Relevant for Nuclear Applications and Nuclear Structure

RADIOACTIVITY 87,88Br(β-), (β-n); measured decay products, Eγ, Iγ, Eβ, Iβ, β-γ-coin.; deduced β-decay feeding distributions, decay heat impact. Comparison with ENDF/B-VII.1 library.

doi: 10.1016/j.nds.2014.06.129
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2014GO10      Acta Phys.Pol. B45, 211 (2014)

D.Gorelov, J.Hakala, A.Jokinen, V.Kolhinen, J.Koponen, I.Moore, H.Penttila, I.Pohjalainen, M.Reponen, S.Rinta-Antila, V.Sonnenschein, A.Voss, A.Al-Adili, M.Lantz, A.Mattera, S.Pomp, V.Rakopoulos, V.Simutkin, A.Solders, J.Aysto

Isomeric Yield Ratios of Fission Products Measured with the JYFLTRAP

NUCLEAR REACTIONS 238U(p, X)81Ge/81Ga/81As, E=25 MeV; measured reaction products, Eγ, Iγ; deduced isomeric yield ratios of fission products.

doi: 10.5506/APhysPolB.45.211
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2014KA22      Phys.Rev. C 89, 051302 (2014)

A.Kankainen, T.Eronen, D.Gorelov, J.Hakala, A.Jokinen, V.S.Kolhinen, M.Reponen, J.Rissanen, A.Saastamoinen, V.Sonnenschein, J.Aysto

Coulomb displacement energies as a probe for nucleon pairing in the f7/2 shell

ATOMIC MASSES 45V, 49Mn; measured cyclotron frequency ratios, time-of-flight spectrum using JYFLTRAP double Penning trap mass spectrometer; deduced masses and Q(EC) values. 45V and 49Mn ions produced in 46Ti, 50Cr(p, 2n), E=40 MeV at IGISOL-JYFL facility Comparison with available data and AME-2012. Discussed pairing effect in the f7/2 shell nuclei.

RADIOACTIVITY 45V, 49Mn(β+), (EC); deduced Q values from measurement of masses of 45V and 49Mn by JYFLTRAP.

doi: 10.1103/PhysRevC.89.051302
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2014KU01      Hyperfine Interactions 223, 175 (2014)

J.Kurpeta, A.Jokinen, H.Penttila, A.Plochocki, J.Rissanen, W.Urban, J.Aysto

Trap-assisted studies of odd, neutron-rich isotopes from Tc to Pd

doi: 10.1007/s10751-012-0616-5
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2014PE01      Hyperfine Interactions 223, 239 (2014)

K.Perajarvi, T.Eronen, D.Gorelov, J.Hakala, A.Jokinen, H.Kettunen, V.Kolhinen, M.Laitinen, I.D.Moore, H.Penttila, J.Rissanen, A.Saastamoinen, H.Toivonen, J.Turunen, J.Aysto

Production of pure 133mXe for CTBTO

doi: 10.1007/s10751-012-0626-3
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2014PE13      Nucl.Data Sheets 119, 334 (2014)

H.PenttilA, D.Gorelov, P.Karvonen, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, J.Parkkonen, S.Rahaman, S.Rinta-Antila, J.Rissanen, V.Rubchenya, T.Sonoda, J.Aysto, M.Lantz, A.Mattera, V.D.Simutkin, S.Pomp, I.Ryzhov

Independent Isotopic Product Yields in 25 MeV and 50 MeV Charged Particle Induced Fission of 238U and 232Th

NUCLEAR REACTIONS 232Th, 238U(p, F), E=25 MeV;238U(p, F), E=50 MeV;238U(d, F), E=25 MeV; measured fission products; deduced isotopic fission yield, position and width of yield distribution of selected isotopes; calculated isotopic yield, position and width of yield distribution using different models.

doi: 10.1016/j.nds.2014.08.092
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2013JO02      Phys.Rev. C 87, 044318 (2013)

D.Jordan, A.Algora, J.L.Tain, B.Rubio, J.Agramunt, A.B.Perez-Cerdan, F.Molina, L.Caballero, E.Nacher, A.Krasznahorkay, M.D.Hunyadi, J.Gulyas, A.Vitez, M.Csatlos, L.Csige, J.Aysto, H.Penttila, I.D.Moore, T.Eronen, A.Jokinen, A.Nieminen, J.Hakala, P.Karvonen, A.Kankainen, A.Saastamoinen, J.Rissanen, T.Kessler, C.Weber, J.Ronkainen, S.Rahaman, V.Elomaa, U.Hager, S.Rinta-Antila, T.Sonoda, K.Burkard, W.Huller, L.Batist, W.Gelletly, A.L.Nichols, T.Yoshida, A.A.Sonzogni, K.Perajarvi, A.Petrovici, K.W.Schmid, A.Faessler

Total absorption study of the β decay of 102, 104, 105Tc

RADIOACTIVITY 102,104,105Tc(β-)[from U(p, F), E=30, 50 MeV followed by mass separation]; measured Eγ, Iγ using the Total Absorption Gamma Spectrometer (TAGS) and JYFLTRAP Penning trap at IGISOL, Jyvaskyla facility; deduced β feedings to levels in 102,104,105Ru, β-strength distributions, Gamow-Teller strengths, average β and γ energies, effects on decay heat calculations. Comparison of deduced β feedings with those from high-resolution γ-ray measurements. Comparison of Gamow-Teller strengths with VAMPIR model calculations. Relevance to decay heat calculations in nuclear reactors.

NUCLEAR REACTIONS U(p, F)102Mo/102Tc/102Ru/104Tc/105Nb/ 105Mo/105Tc/105Ru, E=30, 50 MeV; measured yields using JYFLRTRAP Penning trap at IGISOL, Jyvaskyla facility.

doi: 10.1103/PhysRevC.87.044318
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2013KA08      Phys.Rev. C 87, 024307 (2013)

A.Kankainen, J.Hakala, T.Eronen, D.Gorelov, A.Jokinen, V.S.Kolhinen, I.D.Moore, H.Penttila, S.Rinta-Antila, J.Rissanen, A.Saastamoinen, V.Sonnenschein, J.Aysto

Isomeric states close to doubly magic 132Sn studied with the double Penning trap JYFLTRAP

ATOMIC MASSES 121,123,125Cd, 133Te, 129,131In, 130,131Sn, 133Te, 134Sb [from U, 232Th(p, F), E=25 MeV]; measured time-of-flight, cyclotron frequency ratio using the double Penning trap mass spectrometer JYFLTRAP; deduced mass excess, and level energies of ground states and isomers, isomeric to ground-state intensity ratios. Systematics of 11/2- states in odd-N, N=71-81 Cd, Sn, Te, Xe nuclei, and of the lowest 1/2- and 3/2- states in even-N, N=60-84 In isotopes. Comparison with previous studies, and evaluated data. Relevance for the r process.

doi: 10.1103/PhysRevC.87.024307
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2013LA22      Eur.Phys.J. A 49, 79 (2013)

K.L.Laursen, O.S.Kirsebom, H.O.U.Fynbo, A.Jokinen, M.Madurga, K.Riisager, A.Saastamoinen, O.Tengblad, J.Aysto

High-statistics measurement of the β-delayed spectrum of 20Na

RADIOACTIVITY 20Na(β+α); measured β-delayed α decay Eα, Iα, (16O)α-coin; deduced low-lying α transitions, branching ratios; calculated levels energy, width using R-matrix.

doi: 10.1140/epja/i2013-13079-6
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2013PE01      Appl.Radiat.Isot. 71, 34 (2013)

K.Perajarvi, T.Eronen, A.Cagniant, D.Gorelov, J.Hakala, A.Jokinen, A.Kankainen, H.Kettunen, V.S.Kolhinen, M.Laitinen, I.D.Moore, H.Penttila, J.Rissanen, A.Saastamoinen, H.Toivonen, J.Turunen, J.Aysto

Production of pure samples of 131mXe and 135Xe

NUCLEAR REACTIONS Th(P, X)131Xe/135Xe, E=25 MeV; measured reaction products, dipole frequency, E(ce); deduced Xe implantation rates. Penning trap-based production of the Comprehensive Nuclear-Test-Ban Treaty Organization isotopes.

doi: 10.1016/j.apradiso.2012.09.007
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2013WR01      Phys.Rev. C 87, 031303 (2013)

C.Wrede, S.K.L.Sjue, A.Garcia, H.E.Swanson, I.Ahmad, A.Algora, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, V.S.Kolhinen, I.D.Moore, H.Penttila, M.Reponen, J.Rissanen, A.Saastamoinen, J.Aysto

Electron capture on 116In and implications for nuclear structure related to double-β decay

RADIOACTIVITY 116In(EC)[from 115In(d, p), E=7.6 MeV]; measured γ, β, x-ray spectra, β(x ray)-coin using JYFLTRAP at IGISOL facility in Jyvaskyla; deduced EC decay branch, B(GT). Implications for 2νββ and 0νββ decay modes of 116Cd.

doi: 10.1103/PhysRevC.87.031303
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2012AY01      Eur.Phys.J. A 48, 42 (2012)

J.Aysto, T.Eronen, A.Jokinen, A.Kankainen, I.D.Moore, H.Penttila

An IGISOL portrait - Selected contributions

doi: 10.1140/epja/i2012-12042-5
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2012BA54      Eur.Phys.J. A 48, 155 (2012)

A.Bacquias, T.Kurtukian-Nieto, P.Ascher, L.Audirac, J.Aysto, B.Blank, V.-V.Elomaa, T.Eronen, J.Giovinazzo, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, V.S.Kolhinen, I.D.Moore, S.Rahaman, M.Reponen, J.Rissanen, A.Saastamoinen, J.Souin

Precision half-life determination of a mirror β transition: The decay of 31S

RADIOACTIVITY 31S(β+), (EC)[from 31P(p, n), E=19 MEV]; measured half-life. IGISOL method for source production and JYFLTRAP Penning trap.

doi: 10.1140/epja/i2012-12155-9
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2012ER05      Eur.Phys.J. A 48, 46 (2012)

T.Eronen, V.S.Kolhinen, V.-V.Elomaa, D.Gorelov, U.Hager, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, S.Kopecky, I.D.Moore, H.Penttila, S.Rahaman, S.Rinta-Antila, J.Rissanen, A.Saastamoinen, J.Szerypo, C.Weber, J.Aysto

JYFLTRAP: a Penning trap for precision mass spectroscopy and isobaric purification

doi: 10.1140/epja/i2012-12046-1
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2012FL05      J.Phys.(London) G39, 125101 (2012)

K.T.Flanagan, J.Billowes, P.Campbell, B.Cheal, G.D.Dracoulis, D.H.Forest, M.D.Gardner, J.Huikari, A.Jokinen, B.A.Marsh, R.Moore, A.Nieminen, H.Penttila, H.L.Thayer, G.Tungate, J.Aysto

Nuclear moments, charge radii and spins of the ground and isomeric states in 175Yb and 177Yb

NUCLEAR MOMENTS 175,177Yb; measured hyperfine structures; deduced static moments and changes in mean-square charge radii. Collinear laser spectroscopy at the IGISOL facility, comparison with Nilsson model.

doi: 10.1088/0954-3899/39/12/125101
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2012HA25      Phys.Rev.Lett. 109, 032501 (2012)

J.Hakala, J.Dobaczewski, D.Gorelov, T.Eronen, A.Jokinen, A.Kankainen, V.S.Kolhinen, M.Kortelainen, I.D.Moore, H.Penttila, S.Rinta-Antila, J.Rissanen, A.Saastamoinen, V.Sonnenschein, J.Aysto

Precision Mass Measurements beyond 132Sn: Anomalous Behavior of Odd-Even Staggering of Binding Energies

ATOMIC MASSES 121,122,123,124,125,126,127,128Cd, 129,131In, 130,131,132,133,134,135Sn, 131,132,133,134,135,135Sb, 132,133,134,135,136,137,138,139,140Te; measured cyclotron frequency ratios; deduced masses. JYFLTRAP Penning trap, comparison with available data.

doi: 10.1103/PhysRevLett.109.032501
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2012KA12      Eur.Phys.J. A 48, 49 (2012)

A.Kankainen, Yu.N.Novikov, M.Oinonen, L.Batist, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, P.Karvonen, M.Reponen, J.Rissanen, A.Saastamoinen, G.Vorobjev, C.Weber, J.Aysto

Isomer and decay studies for the rp process at IGISOL

doi: 10.1140/epja/i2012-12049-x
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2012KA13      Eur.Phys.J. A 48, 47 (2012)

A.Kankainen, V.S.Kolhinen, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Saastamoinen, J.Aysto

Penning-trap mass measurements on 92, 94-98, 100Mo with JYFLTRAP

ATOMIC MASSES 92,94,95,96,97,98,100Mo; measured mass excess using JYFLTRAP Penning trap mass spectrometer with 85Rb as a reference. Compared with AME03. 80,81,82,84Y, 83,84,85,86,87,88Zr, 85,86,87,88Nb, 96,98Mo, 91Tc, 91Ru, 94,95,96,99Pd, 101,102,103,104,105Cd, 102In; re-evaluated mass excess using Mo isotopes as references. Compared with old data.

doi: 10.1140/epja/i2012-12047-0
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2012KA24      J.Phys.(London) G39, 093101 (2012)

A.Kankainen, J.Aysto, A.Jokinen

High-accuracy mass spectrometry of fission products with Penning traps

doi: 10.1088/0954-3899/39/9/093101
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2012KU28      Phys.Rev. C 86, 044306 (2012)

J.Kurpeta, W.Urban, A.Plochocki, J.Rissanen, J.A.Pinston, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, H.Penttila, A.Saastamoinen, C.Weber, J.Aysto

Low-spin excitations in the 109Tc nucleus

RADIOACTIVITY 109Mo(β-)[from 238U(d, F), E=25 MeV]; measured Eγ, Iγ, βγ-coin, x rays, half-life, K-shell and total conversion coefficients using IGISOL + JYFLTRAP facilities at Jyvaskyla. 109Tc; deduced levels, J, π, Iβ, logft. 109Mo; deduced J, π of ground state. 109Mo, 109Tc(β-); deduced ground state β feedings. decay, and with quasiparticle-rotor model calculations.

doi: 10.1103/PhysRevC.86.044306
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2012PE06      Eur.Phys.J. A 48, 43 (2012)

H.Penttila, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, S.Rahaman, S.Rinta-Antila, J.Rissanen, V.Rubchenya, A.Saastamoinen, C.Weber, J.Aysto

Fission yield studies at the IGISOL facility

doi: 10.1140/epja/i2012-12043-4
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2012RI05      Phys.Rev. C 86, 034337 (2012)

J.Rissanen, J.Kurpeta, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, H.Penttila, A.Plochocki, A.Saastamoinen, W.Urban, C.Weber, J.Aysto

Structure of 115Ag studied by β- decays of 115Pd and 115Pdm

RADIOACTIVITY 115Pd, 115mPd(β-)[from 115Ru-115Rh-115Pd decay chain, 115Ru formed in U(p, X), E=25 MeV]; measured Eγ, Iγ, Eβ, βγ-, βγγ-coin using IGISOL and JYFLTRAP facilities in Jyvaskyla. 115Ag; deduced levels, J, π, multipolarity, Iβ, logft, Nilsson configuration, β strength distribution. Systematics of negative and positive parity Nilsson states in 109,111,113,115,117Ag. 115Pd; discussed spin and parity of ground state and isomer. Comparison with level scheme of 111Ag.

doi: 10.1103/PhysRevC.86.034337
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2012RO01      J.Phys.(London) G39, 015101 (2012)

C.Rodriguez Triguero, A.M.Bruce, T.Eronen, I.D.Moore, M.Bowry, A.M.D.Bacelar, A.Y.Deo, V.-V.Elomaa, D.Gorelov, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, V.S.Kolhinen, J.Kurpeta, T.Malkiewicz, P.J.R.Mason, H.Penttila, M.Reponen, S.Rinta-Antila, J.Rissanen, A.Saastamoinen, G.S.Simpson, J.Aysto

Trap-assisted separation of nuclear states for gamma-ray spectroscopy: the example of 100Nb

RADIOACTIVITY 100Nb(β-); measured Eγ, Iγ, β-γ-coin.; deduced energy levels, J, π for ground and isomeric state transitions. JYFLTRAP installation.

doi: 10.1088/0954-3899/39/1/015101
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2012RO10      Phys.Rev.Lett. 108, 162502 (2012)

T.Roger, J.Buscher, B.Bastin, O.S.Kirsebom, R.Raabe, M.Alcorta, J.Aysto, M.J.G.Borge, M.Carmona-Gallardo, T.E.Cocolios, J.Cruz, P.Dendooven, L.M.Fraile, H.O.U.Fynbo, D.Galaviz, L.R.Gasques, G.S.Giri, M.Huyse, S.Hyldegaard, K.Jungmann, W.L.Kruithof, M.Lantz, A.Perea, K.Riisager, A.Saastamoinen, B.Santra, P.D.Shidling, M.Sohani, A.J.Sorensen, O.Tengblad, E.Traykov, D.J.van der Hoek, P.Van Duppen, O.O.Versolato, H.W.Wilschut

Precise Determination of the Unperturbed 8B Neutrino Spectrum

RADIOACTIVITY 8B(β+), 8Be(α) [from 12C(12C, X)8B, E=55 MeV/nucleon]; measured decay products, Eα, Iα, Eβ, Iβ; deduced final state distribution in 8Be, J, π, neutrino spectrum. Comparison with available data, R-matrix fits.

doi: 10.1103/PhysRevLett.108.162502
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2012RU03      Eur.Phys.J. A 48, 44 (2012)

V.A.Rubchenya, J.Aysto

Consistent theoretical model for the description of the neutron-rich fission product yields

NUCLEAR REACTIONS 238U(n, F), (p, F), E=0-100 MeV; calculated pre-equilibrium and prescission statistical neutron multiplicity. Compared with data. 245Cm(n, F), E=thermal; analyzed data; deduced fission mode parameter. 238U(n, F), E*=0-100 MeV; calculated fission mode weigths. Compared with data. 232Th(p, F), E=13, 25, 30, 40, 55 MeV; calculated fission fragment yields, σ. Compared with data. 238U(p, F), E=40, 50 MeV; calculated Cs formation σ; compared with data. 238U(n, F), E=5, 10 MeV;238U(p, F), E=30 MeV;238U(γ, F), E=15 MeV calculated fission fragments σ. Combination of more models for the stages of reaction.

doi: 10.1140/epja/i2012-12044-3
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2012TR08      J.Phys.:Conf.Ser. 337, 012058 (2012)

L.Trache, A.Banu, J.C.Hardy, V.E.Iacob, M.McCleskey, B.T.Roeder, E.Simmons, A.Spiridon, R.E.Tribble, A.Saastamoinen, A.Jokinen, J.Aysto, T.Davinson, G.Lotay, P.J.Woods, E.Pollacco

Decay spectroscopy for nuclear astrophysics: β- and β-delayed proton decay

RADIOACTIVITY 23Al, 27P, 31Cl(EC), (β+p) [from 1H(24Mg, X), E=48 MeV/nucleon; 1H(28Si, X), (32S, X), E=40 MeV/nucleon]; measured β-delayed Ep, Ip using DSSSD (double-sided strip Si detector), Iβ using Si detector, pβ-coin, Eγ, Iγ using HPGe, βγ-coin. 23Al deduced mass excess, partial decay scheme, levels, J, π, resonance strength, proton branching, isomeric decay, T1/2, IAS, log ft. Only the 23Al results presented.

doi: 10.1088/1742-6596/337/1/012058
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2011AL21      J.Korean Phys.Soc. 59, 1479s (2011)

A.Algora, D.Jordan, J.L.Tain, B.Rubio, J.Agramunt, L.Caballero, E.Nacher, A.B.Perez-Cerdan, F.Molina, A.Krasznahorkay, M.D.Hunyadi, J.Gulyas, A.Vitez, M.Csatlos, L.Csige, J.Aysto, H.Penttila, S.Rinta-Antila, I.Moore, T.Eronen, A.Jokinen, A.Nieminen, J.Hakala, P.Karvonen, A.Kankainen, U.Hager, T.Sonoda, A.Saastamoinen, J.Rissanen, T.Kessler, C.Weber, J.Ronkainen, S.Rahaman, V.Elomaa, K.Burkard, W.Huller, L.Batist, W.Gelletly, T.Yoshida, A.L.Nichols, A.Sonzogni, K.Perajarvi

Improvements on Decay Heat Summation Calculations by Means of Total Absorption Gamma-ray Spectroscopy Measurements

RADIOACTIVITY 101Nb, 101,105Mo, 102,104,105,106,107Tc(β-)[from U(p, F), E=30-50 MeV]; measured decay products using TAGS (Total Absorption Gamma Spectrometer) with Penning trap at IGISOL (JYFLTRAP); deduced decay heat.

doi: 10.3938/jkps.59.1479
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2011AV01      J.Phys.(London) G38, 025104 (2011)

M.Avgoulea, Yu.P.Gangrsky, K.P.Marinova, S.G.Zemlyanoi, S.Fritzsche, D.Iablonskyi, C.Barbieri, E.C.Simpson, P.D.Stevenson, J.Billowes, P.Campbell, B.Cheal, B.Tordoff, M.L.Bissell, D.H.Forest, M.D.Gardner, G.Tungate, J.Huikari, A.Nieminen, H.Penttila, J.Aysto

Nuclear charge radii and electromagnetic moments of radioactive scandium isotopes and isomers

NUCLEAR MOMENTS 42,43,44,45,46Sc; measured hyperfine structure; deduced nuclear magnetic dipole moments and electric quadrupole moments, isotope shifts, charge radii, deformation. Shell model calculation, laser spectroscopy.

NUCLEAR STRUCTURE 42,43,44,45,46Sc, 40,41,42,43,44,45,46,47,48Ca; calculated nuclear isomer shifts, radii, magnetic moment, spectroscopic quadrupole moments. Comparison with other data.

doi: 10.1088/0954-3899/38/2/025104
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2011ER02      Phys.Rev. C 83, 055501 (2011); Pub.Note Phys.Rev. C 84, 059905 (2011)

T.Eronen, D.Gorelov, J.Hakala, J.C.Hardy, A.Jokinen, A.Kankainen, I.D.Moore, H.Penttila, M.Reponen, J.Rissanen, A.Saastamoinen, J.Aysto

QEC values of the superallowed β emitters 10C, 34Ar, 38Ca, and 46V

ATOMIC MASSES 10C, 10B, 34Ar, 34Cl, 34mCl, 38Ca, 38mK, 38Ar, 46V, 46Ti; measured resonance frequencies ratios using JYFLTRAP Penning-trap and 10C, 34Ar, 38Ca and 46V beams from IGISOL; deduced Q values for β+ decay. Time-of-flight ion-cyclotron-resonance (TOF-ICR) technique.

RADIOACTIVITY 10C, 34Ar, 38Ca, 46V(β+); measured Q values for decay from mass measurements.

doi: 10.1103/PhysRevC.83.055501
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2011GO33      J.Korean Phys.Soc. 59, 1573s (2011)

M.B.Gomez Hornillos, V.Gorlychev, R.Caballero, G.Cortes, A.Poch, C.Pretel, F.Calvino, J.L.Tain, A.Algora, J.Agramunt, D.Cano-Ott, T.Martinez, E.Mendoza, J.Rissanen, J.Aysto, A.Jokinen, T.Eronen, I.Moore, H.Penttila, V.Gorlychev, R.Caballero, G.Cortes, A.Poch, C.Pretel, F.Calvino, J.L.Tain, A.Algora, J.Agramunt, D.Cano-Ott, T.Martinez, E.Mendoza, J.Rissanen, J.Aysto, A.Jokinen, T.Eronen, I.Moore, H.Penttila

Monte Carlo Simulations for the Study of a Moderated Neutron Detector

doi: 10.3938/jkps.59.1573
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2011GO37      J.Phys.:Conf.Ser. 312, 052008 (2011)

M.B.Gomez Hornillos, J.Rissanen, J.L.Tain, A.Algora, D.Cano-Ott, J.Agramunt, V.Gorlychev, R.Caballero, T.Martinez, L.Achouri, J.Aysto, G.Cortes, V.V.Elomaa, T.Eronen, A.Garcia, J.Hakala, A.Jokinen, P.Karvonen, V.S.Kolhinen, I.Moore, M.Parlog, H.Penttila, Z.Podolyak, C.Pretel, M.Reponen, V.Sonnenschein, E.Valencia

First Measurements with the BEta deLayEd Neutron Detector (BELEN-20) at JYFLTRAP

RADIOACTIVITY 88Br, 94,95Rb, 138I(β-n); measured decay products Eβ, Iβ, Eγ, Iγ, En, In; deduced neutron emission rate and its errors.

doi: 10.1088/1742-6596/312/5/052008
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2011HA48      Eur.Phys.J. A 47, 129 (2011)

J.Hakala, R.Rodriguez-Guzman, V.-V.Elomaa, T.Eronen, A.Jokinen, V.S.Kolhinen, I.D.Moore, H.Penttila, M.Reponen, J.Rissanen, A.Saastamoinen, J.Aysto

Precision mass measurements of neutron-rich Y, Nb, Mo, Tc, Ru, Rh, and Pd isotopes

RADIOACTIVITY 102,103Y, 108Nb, 113Tc, 114,116Ru, 119Rh, 118,120,121,122Pd, 114Tc, 111Mo(β-)[from proton-induced fission]; measured cyclotron frequency; deduced mass excess, 2n, 2p separation energies using reference ions; calculated mass excess using HFB with Gogny D1S force and D1N Gogny Energy Density Functional. JYFLTRAP Penning trap mass spectrometer. Compared with AME.

doi: 10.1140/epja/i2011-11129-9
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2011KI14      Phys.Rev. C 83, 065802 (2011), Erratum Phys.Rev. C 84, 049902 (2011)

O.S.Kirsebom, S.Hyldegaard, M.Alcorta, M.J.G.Borge, J.Buscher, T.Eronen, S.Fox, B.R.Fulton, H.O.U.Fynbo, H.Hultgren, A.Jokinen, B.Jonson, A.Kankainen, P.Karvonen, T.Kessler, A.Laird, M.Madurga, I.Moore, G.Nyman, H.Penttila, S.Rahaman, M.Reponen, K.Riisager, T.Roger, J.Ronkainen, A.Saastamoinen, O.Tengblad, J.Aysto

Precise and accurate determination of the 8B decay spectrum

RADIOACTIVITY 8B(β+)[from 6Li(3He, n), E=7.0 MeV]; measured β spectra, β-delayed α spectra, Eα, αα-coin. 8Be; deduced excitation distribution. Discussed implication of 8B neutrino spectrum. 20Na(β+); measured β-delayed α spectrum and used for calibration. Monte-Carlo simulations of β decay of 8B. R-matrix parameterization.

doi: 10.1103/PhysRevC.83.065802
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2011KI26      Eur.Phys.J. A 47, 130 (2011)

O.S.Kirsebom, H.O.U.Fynbo, A.Jokinen, M.Madurga and K.Riisager, A.Saastamoinen, O.Tengblad, J.Aysto

New β-delayed proton lines from 23Al

RADIOACTIVITY 23Al(β+), (EC); measured β-delayed Ep, Ip; deduced levels, J, π, branching ratio, log ft, B(GT) for individual levels. Compared with other data.

doi: 10.1140/epja/i2011-11130-4
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2011KO03      Phys.Lett. B 697, 116 (2011)

V.S.Kolhinen, T.Eronen, D.Gorelov, J.Hakala, A.Jokinen, A.Kankainen, J.Rissanen, J.Suhonen, J.Aysto

On the resonant neutrinoless double-electron-capture decay of 136Ce

ATOMIC MASSES 136Ce, 136Ba, 136Xe; measured tof ion-cyclotron resonances; deduced mass differences, double electron capture Q-value. Comparison with previous measurements.

RADIOACTIVITY 136Ce(2EC); calculated T1/2 for neutrinoless double beta decay. Multi-Commutator Model (MCM).

doi: 10.1016/j.physletb.2011.01.050
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2011KU16      Phys.Rev. C 84, 044304 (2011)

J.Kurpeta, W.Urban, A.Plochocki, J.Rissanen, J.A.Pinston, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, I.D.Moore, H.Penttila, A.Saastamoinen, C.Weber, J.Aysto

Signatures of oblate deformation in the 111Tc nucleus

RADIOACTIVITY 111Mo(β-)[from 238U(d, F), E=25 MeV]; measured Eγ, Iγ, γγ-, βγ-coin, half-life. 111Tc; deduced levels, J, π, conversion coefficients, multipolarities, Iβ, logft, Q value. 111Tc(β-) [from 111Tc decay]; measured Eγ, βγ-coin. IGISOL3 mass separator coupled to JYFLTRAP Penning trap. Comparison with particle-plus-rotor model calculations.

doi: 10.1103/PhysRevC.84.044304
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2011PE31      J.Korean Phys.Soc. 59, 1589s (2011)

H.Penttila, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, V.S.Kolhinen, I.D.Moore, J.Rissanen, M.Reponen, A.Saastamoinen, V.Sonnenschein, J.Aysto

The Possibilities of the Extended IGISOL Facility at JYFL

doi: 10.3938/jkps.59.1589
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2011RA24      Phys.Lett. B 703, 412 (2011)

S.Rahaman, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, J.Rissanen, J.Suhonen, C.Weber, J.Aysto

Double-beta decay Q values of 116Cd and 130Te

ATOMIC MASSES 116Cd, 130Te; measured cyclotron frequencies; deduced double beta decay Q-values, mass differences.

RADIOACTIVITY 116Cd, 130Te(2β-); calculated nuclear matrix elements.

doi: 10.1016/j.physletb.2011.07.078
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2011RI01      Phys.Rev. C 83, 011301 (2011); Erratum Phys.Rev. C 83, 029901 (2011)

J.Rissanen, J.Kurpeta, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, I.D.Moore, P.Karvonen, A.Plochocki, L.Prochniak, H.Penttila, S.Rahaman, M.Reponen, A.Saastamoinen, J.Szerypo, W.Urban, C.Weber, J.Aysto

Decay study of 114Tc with a Penning trap

RADIOACTIVITY 114Tc(β-)[from U(d, X), E=25 MeV]; measured Eγ, Iγ, γγ-coin, half-lives, mass difference by Penning-Trap (JYFLTRAP) assisted spectroscopy. IGISOL facility. 114Ru; deduced levels, isomers, J, π, configurations, Q value for β decay, logft. Comparison with microscopic Bohr-Hamiltonian calculations using Sly4 Skyrme interaction.

doi: 10.1103/PhysRevC.83.011301
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2011RI07      Eur.Phys.J. A 47, 97 (2011); Erratum Eur.Phys.J. A 47, 116 (2011)

J.Rissanen, J.Kurpeta, A.Plochocki, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, I.D.Moore, H.Penttila, S.Rahaman, A.Saastamoinen, W.Urban, C.Weber, J.Aysto

Penning-trap-assisted study of 115Ru beta decay

RADIOACTIVITY 115Ru(β-)[from U(p, f), E=25 MeV, selected by JYFLTRAP]; measured Eγ, Iγ, Eβ, Iβ, X-rays, βγ-coin. 115Rh deduced levels, J, π, level log ft, level β-feeding, ICC(K) for 80.1 keV transition, rotational constants for the K=1/2 intruder band. 115Ru deduced ground state J, π, β-strength distribution. Penning-trap-assisted β and γ spectroscopy, IGISOL facility. Comparison with near-by isotopes of Ru and Rh.

doi: 10.1140/epja/i2011-11097-0
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2011SA15      Phys.Rev. C 83, 045808 (2011)

A.Saastamoinen, L.Trache, A.Banu, M.A.Bentley, T.Davinson, J.C.Hardy, V.E.Iacob, M.McCleskey, B.T.Roeder, E.Simmons, G.Tabacaru, R.E.Tribble, P.J.Woods, J.Aysto

Experimental study of β-delayed proton decay of 23Al for nucleosynthesis in novae

RADIOACTIVITY 23Al(β+), (β+p); measured E(p), I(p), Eγ, Iγ, βγ-, βp-coin. 22Na, 23Mg; deduced levels, J, π, widths, IAS of 23Al, resonance strength at 7787 keV and its contribution to the reaction rates for 22Na(p, γ) reaction at typical nova peak temperatures.

doi: 10.1103/PhysRevC.83.045808
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2011SO11      Eur.Phys.J. A 47, 40 (2011)

J.Souin, T.Eronen, P.Ascher, L.Audirac, J.Aysto, B.Blank, V.-V.Elomaa, J.Giovinazzo, J.Hakala, A.Jokinen, V.S.Kolhinen, P.Karvonen, I.D.Moore, S.Rahaman, J.Rissanen, A.Saastamoinen, J.C.Thomas

Precision half-life and Q -value measurement of the super-allowed β emitter 30S

RADIOACTIVITY 30S(EC) [from Ni2P(p, X), E=35 MeV]; measured cyclotron frequency ratio, Eβ, Iβ, Eγ, Iγ; deduced Q-value, T1/2 and uncertainties. JYFLTRAP Penning trap setup.

doi: 10.1140/epja/i2011-11040-5
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2011TA26      J.Korean Phys.Soc. 59, 1499s (2011)

J.L.Tain, A.Algora, E.Estevez, B.Rubio, E.Valencia, D.Jordan, J.Aysto, T.Eronen, A.Jokinen, I.Moore, H.Pentilla, J.Riisanen, L.Batist, M.Bowry, M.Bunce, W.Gelletly, R.Caballero, G.Cortes, B.Gomez-Hornillos, V.Gorlychev, D.Cano-Ott, A.Garcia, T.Martinez, C.Domingo-Pardo, M.Fallot, L.Giot, A.Porta, B.Van Vinh

Beta Decay Studies of Neutron Rich Nuclei Using Total Absorption Gamma-ray Spectroscopy and Delayed Neutron Measurements

RADIOACTIVITY 86,87,88Br, 91,92,93,94Rb, 138I(β-), (β-n)[from U+2H]; measured Eβ, Iβ(t), nβ-coin, Eγ, Iγ(t), βγ-coin at IGISOL facility at JYFL using BELEN detector for neutrons, activity using TAS (Total Absorption Spectrometer) and DACQ system.

doi: 10.3938/jkps.59.1499
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2010AL22      Phys.Rev.Lett. 105, 202501 (2010)

A.Algora, D.Jordan, J.L.Tain, B.Rubio, J.Agramunt, A.B.Perez-Cerdan, F.Molina, L.Caballero, E.Nacher, A.Krasznahorkay, M.D.Hunyadi, J.Gulyas, A.Vitez, M.Csatlos, L.Csige, J.Aysto, H.Penttila, I.D.Moore, T.Eronen, A.Jokinen, A.Nieminen, J.Hakala, P.Karvonen, A.Kankainen, A.Saastamoinen, J.Rissanen, T.Kessler, C.Weber, J.Ronkainen, S.Rahaman, V.Elomaa, S.Rinta-Antila, U.Hager, T.Sonoda, K.Burkard, W.Huller, L.Batist, W.Gelletly, A.L.Nichols, T.Yoshida, A.A.Sonzogni, K.Perajarvi

Reactor Decay Heat in 239Pu: Solving the γ Discrepancy in the 4-3000-s Cooling Period

RADIOACTIVITY 101Nb, 105Mo, 102,104,105,106,107Tc(β-) [from U(p, X), E=30, 50 MeV]; measured Eγ, Iγ, mass; deduced β-feeding probabilities, discrepancies for decay heat of 239Pu.

doi: 10.1103/PhysRevLett.105.202501
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2010AY07      Nucl.Phys. A834, 724c (2010)

J.Aysto, and the JYFLTRAP Collaboration

Ion-Trap Spectrometry for Exotic Nuclei

RADIOACTIVITY 115Ru(β-); measured Eγ, Iγ. 115Rh; deduced levels, J, π. Discusses Penning trap experimental possibilities.

doi: 10.1016/j.nuclphysa.2010.01.131
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2010BA31      J.Phys.(London) G37, 105103 (2010)

K.Baczynska, J.Billowes, P.Campbell, F.C.Charlwood, B.Cheal, T.Eronen, D.H.Forest, A.Jokinen, T.Kessler, I.D.Moore, M.Ruffer, G.Tungate, J.Aysto

Nuclear spin determination of 100mY by collinear laser spectroscopy of optically pumped ions

NUCLEAR REACTIONS U(p, F)89Y/96Y/98Y/99Y/100Y, E=30 MeV; measured hyperfine resonance fluorescence spectra; deduced isotope shifts, hyperfine parameters, nuclear spin and prolate shape.

doi: 10.1088/0954-3899/37/10/105103
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2010CH15      Phys.Lett. B 690, 346 (2010)

F.C.Charlwood, J.Billowes, P.Campbell, B.Cheal, T.Eronen, D.H.Forest, S.Fritzsche, M.Honma, A.Jokinen, I.D.Moore, H.Penttila, R.Powis, A.Saastamoinen, G.Tungate, J.Aysto

Ground state properties of manganese isotopes across the N=28 shell closure

NUCLEAR REACTIONS 50,52Cr(p, n), E=14 MeV; 50Cr(d, n), E=13 MeV;55Mn(p, xnp)53Mn/54Mn, E=33 MeV; 56Fe(d, 2p), E=25 MeV; measured hyperfine spectra; deduced magnetic dipole moments, quadrupole moments, mean-square charge radii, shell closure. Comparison with shell model calculation using GXPF1A interaction.

doi: 10.1016/j.physletb.2010.05.060
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2010HY01      Phys.Rev. C 81, 024303 (2010)

S.Hyldegaard, M.Alcorta, B.Bastin, M.J.G.Borge, R.Boutami, S.Brandenburg, J.Buscher, P.Dendooven, C.Aa.Diget, P.Van Duppen, T.Eronen, S.P.Fox, L.M.Fraile, B.R.Fulton, H.O.U.Fynbo, J.Huikari, M.Huyse, H.B.Jeppesen, A.S.Jokinen, B.Jonson, K.Jungmann, A.Kankainen, O.S.Kirsebom, M.Madurga, I.Moore, A.Nieminen, T.Nilsson, G.Nyman, G.J.G.Onderwater, H.Penttila, K.Perajarvi, R.Raabe, K.Riisager, S.Rinta-Antila, A.Rogachevskiy, A.Saastamoinen, M.Sohani, O.Tengblad, E.Traykov, Y.Wang, K.Wilhelmsen, H.W.Wilschut, J.Aysto

R-matrix analysis of the β decays of 12N and 12B

RADIOACTIVITY 12N(β+), 12B(β-); measured 3α summed spectra and associated branching ratios for breakup via the 8Be ground-state and via excited states of 8Be. 12C; deduced levels, resonances, Gammow-Teller strengths and widths using multilevel, many-channel R-matrix formalism.

doi: 10.1103/PhysRevC.81.024303
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2010KA26      Phys.Rev. C 82, 034311 (2010)

A.Kankainen, V.-V.Elomaa, T.Eronen, D.Gorelov, J.Hakala, A.Jokinen, T.Kessler, V.S.Kolhinen, I.D.Moore, S.Rahaman, M.Reponen, J.Rissanen, A.Saastamoinen, C.Weber, J.Aysto

Mass measurements in the vicinity of the doubly magic waiting point 56Ni

ATOMIC MASSES 56,57Fe, 53,53m,56Co, 55,56,57Ni, 57,58Cu, 59,60Zn; measured cyclotron resonance frequencies and ratios by JYFLTRAP Penning trap spectrometer; deduced mass excesses. 56,57Fe, 53,53m,55,56Co, 55,56,57,58Ni, 57,58,59Cu, 53,56,57Fe, 59,60Zn; measured frequency ratio pairs. Comparison with previous mass measurements. 53,54Co, 55,56Ni, 57,58Cu, 59,60Zn; deduced Coulomb displacement energies for the T=1/2 doublets and T=1 triplets. 53Co, 54,55,56Ni, 56,57,58Cu, 58,59,60Zn, 60,61Ga; deduced S(p) values. Comparison of all the deduced values with AME-2003.

RADIOACTIVITY 53Co(EC), 53mCo(EC), (p); deduced Q values and revised level schemes. 53Co; deduced energy of the high-spin isomer. 53Co, 55,56Ni, 57,58Cu, 59,60Zn(EC); deduced Q values from measured masses, electron capture probabilities, Logft values, and Gamow-Teller matrix elements.

NUCLEAR REACTIONS 54Fe(p, X)53Co/53mCo/56Ni/57Cu/58Cu, E=40, 50 MeV; 54Fe(3He, X)55Ni/56Ni/59Zn/60Zn, E=25 MeV; Ca(20Ne, X)56Co/57Ni, E=75, 105 MeV; measured masses of product nuclides. 56Ni(p, γ)57Cu; deduced reaction Q value, proton resonance energies, rescaled proton widths, and reaction rates of astrophysical significance.

doi: 10.1103/PhysRevC.82.034311
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2010KA30      Phys.Rev. C 82, 052501 (2010)

A.Kankainen, T.Eronen, D.Gorelov, J.Hakala, A.Jokinen, V.S.Kolhinen, M.Reponen, J.Rissanen, A.Saastamoinen, V.Sonnenschein, J.Aysto

High-precision mass measurement of 31S with the double Penning trap JYFLTRAP improves the mass value for 32Cl

ATOMIC MASSES 31S; measured mass by time-of-flight (TOF) ion-cyclotron resonance method using JYFLTRAP double Penning trap mass spectrometer using 31P as reference; deduced mass excess and Q value for EC decay. 32Cl; analyzed mass excess from S(p); deduced improved Q(ϵ) value and logft. 32Si, 32P, 32S, 32Cl, 32Ar; analyzed isobaric mass multiplet equation (IMME) for A=32, T=2 quintet. Comparison of masses with previous measurements and evaluations.

RADIOACTIVITY 31S(EC)[from 32S(p, pn), E=40 MeV]; measured mass using IGISOL and JYFLTRAP facilities; deduced Q value, logft. 32S, 32Cl, 32Ar(EC); analyzed Q values, logft. Implication for superallowed β decay of 32Ar.

doi: 10.1103/PhysRevC.82.052501
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2010KO15      Phys.Lett. B 684, 17 (2010)

V.S.Kolhinen, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, M.Kortelainen, J.Suhonen, J.Aysto

Accurate Q value for the 74Se double-electron-capture decay

ATOMIC MASSES 74Ge, 74Se; measured masses using JYFLTRAP penning trap; deduced Q-value for neutrino-less 2EC decay.

RADIOACTIVITY 74Se(2EC); deduced Q-value for neutrino-less 2EC decay from atomic mass measurements; calculated T1/2 and nuclear matrix elements using QRPA wave functions in a multiple-commutator model.

doi: 10.1016/j.physletb.2009.12.052
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2010KO16      Phys.Lett. B 686, 227 (2010)

E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, A.A.Bogachev, L.Krupa, T.A.Loktev, S.V.Smirnov, V.I.Zagrebaev, J.Aysto, W.H.Trzaska, V.A.Rubchenya, E.Vardaci, A.M.Stefanini, M.Cinausero, L.Corradi, E.Fioretto, P.Mason, G.F.Prete, R.Silvestri, S.Beghini, G.Montagnoli, F.Scarlassara, F.Hanappe, S.V.Khlebnikov, J.Kliman, A.Brondi, A.Di Nitto, R.Moro, N.Gelli, S.Szilner

Investigation of the reaction 64Ni + 238U being an option of synthesizing element 120

NUCLEAR REACTIONS 238U(48Ca, X), E=220-260 MeV; 238U(64Ni, X), E=320-385 MeV; measured fragment yields and energy distributions using CORSET time-of-flight spectrometer; deduced σ; analyzed reaction mechanism features using Viola systematics. 244Pu(58Fe, X), E=328 MeV; analyzed data. Discussed superheavy element formation.

doi: 10.1016/j.physletb.2010.02.041
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2010KO28      Phys.Rev. C 82, 022501 (2010)

V.S.Kolhinen, T.Eronen, D.Gorelov, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, J.Rissanen, A.Saastamoinen, J.Suhonen, J.Aysto

Double-β decay Q value of 150Nd

ATOMIC MASSES 150Nd, 150Sm; measured cyclotron frequencies using JYFLTRAP Penning-trap mass spectrometer; deduced mass difference and Q value for double-beta decay. Comparison with AME 2003.

RADIOACTIVITY 150Nd(2β-); deduced Q value from mass difference measurement of 150Nd and 150Sm using JYFLTRAP Penning-trap mass spectrometer. Comparison with AME 2003.

doi: 10.1103/PhysRevC.82.022501
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2010KU01      Acta Phys.Pol. B41, 469 (2010)

J.Kurpeta, J.Rissanen, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, P.Karvonen, I.D.Moore, H.Penttila, A.Plochocki, S.Rahaman, S.Rinta-Antila, J.Ronkainen, A.Saastamoinen, T.Sonoda, J.Szerypo, W.Urban, Ch.Weber, J.Aysto

Progress in Trap Assisted β Decay Spectroscopy of 115Ru

RADIOACTIVITY 115Ru(β-) [from 238U(p, F)115Ru, E=25 MeV]; measured Eγ, Iγ, γγ-coin.; deduced energy levels, gamma transitions, T1/2. JYFLTRAP Penning trap system.

Data from this article have been entered in the XUNDL database. For more information, click here.


2010KU19      Phys.Rev. C 82, 027306 (2010)

J.Kurpeta, W.Urban, A.Plochocki, J.Rissanen, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, I.D.Moore, H.Penttila, S.Rahaman, A.Saastamoinen, T.Sonoda, J.Szerypo, C.Weber, J.Aysto

Excited states in 115Pd populated in the β- decay of 115Rh

RADIOACTIVITY 115Rh(β-); measured Eγ, Iγ, γγ-coin. 115Pd; deduced levels, J, π. Systematics of low-lying states in odd-A Mo, Ru and Pd nuclei from N=61-71.

doi: 10.1103/PhysRevC.82.027306
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2010KU25      Phys.Rev. C 82, 064318 (2010)

J.Kurpeta, J.Rissanen, A.Plochocki, W.Urban, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, T.Malkiewicz, I.D.Moore, H.Penttila, A.Saastamoinen, G.S.Simpson, C.Weber, J.Aysto

New isomer and decay half-life of 115Ru

RADIOACTIVITY 115Ru(IT), (β-)[From 238U(p, X), E=25 MeV]; measured Eγ, Iγ, βγ-, γγ-coin, isomer and ground state half-lives, JYFLTRAP assisted β-γ spectroscopy. 115Ru, 115Rh; deduced levels, J, π, conversion coefficients, multipolarity. systematics of low-lying levels and isomers in 113,115,117Pd, 113,115Ru.

doi: 10.1103/PhysRevC.82.064318
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2010PE06      Eur.Phys.J. A 44, 147 (2010)

H.Penttila, P.Karvonen, T.Eronen, V.-V.Elomaa, U.Hager, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, K.Perajarvi, S.Rahaman, S.Rinta-Antila, V.Rubchenya, A.Saastamoinen, T.Sonoda, J.Aysto

Determining isotopic distributions of fission products with a Penning trap

NUCLEAR REACTIONS 238U(p, F)Ge/Ag/In/Rb/Cs, E=25, 50 MeV; measured fission fragment yields using an ion guide and Penning trap. Comparison with other data.

doi: 10.1140/epja/i2010-10936-8
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1428.


2010SA41      J.Phys.:Conf.Ser. 202, 012010 (2010)

A.Saastamoinen, L.Trache, A.Banu, M.A.Bentley, T.Davinson, T.Eronen, J.C.Hardy, V.E.Iacob, D.Jenkins, A.Jokinen, M.McCleskey, B.Roeder, G.Tabacaru, R.E.Tribble, P.J.Woods, J.Aysto, for the IGISOL/MARS Collaboration

Studies of astrophysically interesting nucleus 23Al

NUCLEAR REACTIONS 1H(24Mg, 2n)23Al, E=48 MeV/nucleon; measured reaction products using DSSD (double-sided Si strip detector), Si and HPGe detectors at the focal plane of MARS separator, β-delayed 23Al proton decay; deduced proton branching.

ATOMIC PHYSICS 23Al; measured mass, mass excess, proton separation using JYFLTRAP Penning trap at IGISOL.

doi: 10.1088/1742-6596/202/1/012010
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2009CH09      Phys.Lett. B 674, 23 (2009)

F.C.Charlwood, K.Baczynska, J.Billowes, P.Campbell, B.Cheal, T.Eronen, D.H.Forest, A.Jokinen, T.Kessler, I.D.Moore, H.Penttila, R.Powis, M.Ruffer, A.Saastamoinen, G.Tungate, J.Aysto

Nuclear charge radii of molybdenum fission fragments

NUCLEAR MOMENTS 90,91,92,94,95,96,97,98,100,102,103,104,105,106,108Mo; measured hfs; deduced hyperfine structure coefficients, charge radius, magnetic moment. Collinear laser spectroscopy.

doi: 10.1016/j.physletb.2009.02.050
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2009CH25      Phys.Rev.Lett. 102, 222501 (2009)

B.Cheal, K.Baczynska, J.Billowes, P.Campbell, F.C.Charlwood, T.Eronen, D.H.Forest, A.Jokinen, T.Kessler, I.D.Moore, M.Reponen, S.Rothe, M.Ruffer, A.Saastamoinen, G.Tungate, J.Aysto

Laser Spectroscopy of Niobium Fission Fragments: First Use of Optical Pumping in an Ion Beam Cooler Buncher

NUCLEAR MOMENTS 90,91,92,93,99,101,103Nb; measured collinear fluorescence spectra, hfs coefficients; deduced magnetic dipole, electric quadrupole moments, mean-square charge radii.

doi: 10.1103/PhysRevLett.102.222501
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2009DI06      Phys.Rev. C 80, 034316 (2009)

C.Aa.Diget, F.C.Barker, M.J.G.Borge, R.Boutami, P.Dendooven, T.Eronen, S.P.Fox, B.R.Fulton, H.O.U.Fynbo, J.Huikari, S.Hyldegaard, H.B.Jeppesen, A.Jokinen, B.Jonson, A.Kankainen, I.Moore, A.Nieminen, G.Nyman, H.Penttila, V.F.E.Pucknell, K.Riisager, S.Rinta-Antila, O.Tengblad, Y.Wang, K.Wilhelmsen, J.Aysto

Breakup channels for 12C triple-α continuum states

RADIOACTIVITY 12N(β+)[from 12C(p, n), E=28 MeV], 12B(β-)[from 11B(d, p), E=10 MeV]; measured Eα, Eγ, ααα-coin. 12C; deduced levels, J, π, triple-α continuum states and their decay modes. R-matrix analysis.

doi: 10.1103/PhysRevC.80.034316
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2009EL07      Phys.Rev.Lett. 102, 252501 (2009)

V.-V.Elomaa, G.K.Vorobjev, A.Kankainen, L.Batist, S.Eliseev, T.Eronen, J.Hakala, A.Jokinen, I.D.Moore, Yu.N.Novikov, H.Penttila, A.Popov, S.Rahaman, J.Rissanen, A.Saastamoinen, H.Schatz, D.M.Seliverstov, C.Weber, J.Aysto

Quenching of the SnSbTe Cycle in the rp Process

ATOMIC MASSES 104,105,106,107,108Sn, 106,107,108,109,110Sb, 108,109Te, 111I; Measured atomic masses using JYFLTRAP Penning-trap spectrometer;deduced single-proton separation energy. Comparison with AME2003 evaluation.

doi: 10.1103/PhysRevLett.102.252501
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2009EL08      Eur.Phys.J. A 40, 1 (2009)

V.-V.Elomaa, T.Eronen, U.Hager, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, S.Rahaman, J.Rissanen, V.Rubchenya, C.Weber, J.Aysto

Light-ion-induced reactions in mass measurements of neutron-deficient nuclides close to A = 100

ATOMIC MASSES 97,98,99,101Pd, 100Ag, 101,102,103,104,105Cd, 102,104In; measured masses using the JYFLTRAP Penning trap mass spectrometer. Comparison with evaluated values and data.

NUCLEAR REACTIONS 92Mo(p, X)85Nb/86Nb/87Nb/88Nb/89Nb/90Nb/91Nb, E=62 MeV; 106Cd(p, X)101In/102In/103In/104In/105In/106In/107In/108In/109In, E=62 MeV; measured yields; deduced production σ. Enriched target.

doi: 10.1140/epja/i2008-10732-1
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2009ER02      Phys.Rev. C 79, 032802 (2009)

T.Eronen, V.-V.Elomaa, U.Hager, J.Hakala, A.Jokinen, A.Kankainen, T.Kessler, I.D.Moore, S.Rahaman, J.Rissanen, C.Weber, J.Aysto

Mass and QEC value of 26Si

ATOMIC MASSES 26Si; measured Q(EC) and mass using the JYFLTRAP mass spectrometer; 25Al(p, γ)26Si; deduced Q-value and reaction rates.

RADIOACTIVITY 26Si(EC), (β+)[from 27Al(p, 2n)26Si, E=35 MeV]; deduced Q value and log ft. 10C, 14O, 22Mg, 26mAl, 26Si, 34Cl, 34Ar, 38mK, 42Sc, 46V, 50Mn, 54Co, 62Ga, 74Rb(EC), (β+); systematics of ft values for superallowed transitions.

doi: 10.1103/PhysRevC.79.032802
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1689.


2009ER07      Phys.Rev.Lett. 103, 252501 (2009)

T.Eronen, V.-V.Elomaa, J.Hakala, J.C.Hardy, A.Jokinen, I.D.Moore, M.Reponen, J.Rissanen, A.Saastamoinen, C.Weber, J.Aysto

QEC Values of the Superallowed β Emitters 34Cl and 38Km

RADIOACTIVITY 34Cl, 38K(EC); measured cyclotron frequency ratios; deduced Q-values with high precision.Online Pening trap.

doi: 10.1103/PhysRevLett.103.252501
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2009HY01      Phys.Lett. B 678, 459 (2009)

S.Hyldegaard, C.Forssen, C.Aa.Diget, M.Alcorta, F.C.Barker, B.Bastin, M.J.G.Borge, R.Boutami, S.Brandenburg, J.Buscher, P.Dendooven, P.Van Duppen, T.Eronen, S.Fox, B.R.Fulton, H.O.U.Fynbo, J.Huikari, M.Huyse, H.B.Jeppesen, A.Jokinen, B.Jonson, K.Jungmann, A.Kankainen, O.Kirsebom, M.Madurga, I.Moore, P.Navratil, T.Nilsson, G.Nyman, G.J.G.Onderwater, H.Penttila, K.Perajarvi, R.Raabe, K.Riisager, S.Rinta-Antila, A.Rogachevskiy, A.Saastamoinen, M.Sohani, O.Tengblad, E.Traykov, J.P.Vary, Y.Wang, K.Wilhelmsen, H.W.Wilschut, J.Aysto

Precise branching ratios to unbound 12C states from 12N and 12B β-decays

NUCLEAR REACTIONS 1H(12C, n), 2H(11B, p), 12C(p, n), 11B(d, p), E not given; measured Eγ, Iγ, Eα, Iα, γα-coin, αα-coin, decay spectra; deduced branching ratio, log ft, B(GT) to various 12C states. Comparison with no-core shell model calculations.

RADIOACTIVITY 12B(β-), 12N(β+); deduced branching ratio, log ft, B(GT) to various 12C states. Comparison with no-core shell model calculations.

doi: 10.1016/j.physletb.2009.06.064
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Data from this article have been entered in the XUNDL database. For more information, click here.


2009HY02      Phys.Rev. C 80, 044304 (2009)

S.Hyldegaard, C.Aa.Diget, M.J.G.Borge, R.Boutami, P.Dendooven, T.Eronen, S.P.Fox, L.M.Fraile, B.R.Fulton, H.O.U.Fynbo, J.Huikari, H.B.Jeppesen, A.S.Jokinen, B.Jonson, A.Kankainen, I.Moore, G.Nyman, H.Penttila, K.Perajarvi, K.Riisager, S.Rinta-Antila, O.Tengblad, Y.Wang, K.Wilhelmsen, J.Aysto

Branching ratios in the β decays of 12N and 12B

RADIOACTIVITY 12N(β+)[from 12C(p, n), E=28 MeV], 12B(β-)[from 11B(d, p), E=10 MeV]; 20Na(β+)[from 24Mg(p, nα), E not given]; measured Eα, Iα, Eγ, Iγ, Eβ, βγ-, βα-, ααα-coin. 12C, 20Ne; deduced levels, β feedings, and logft. Triple-α method and R-matrix analysis. IGISOL-JYFL facility.

doi: 10.1103/PhysRevC.80.044304
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Data from this article have been entered in the XUNDL database. For more information, click here.


2009KU19      Phys.Rev. C 80, 035502 (2009)

T.Kurtukian Nieto, J.Souin, T.Eronen, L.Audirac, J.Aysto, B.Blank, V.-V.Elomaa, J.Giovinazzo, U.Hager, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, T.Kessler, I.D.Moore, H.Penttila, S.Rahaman, M.Reponen, S.Rinta-Antila, J.Rissanen, A.Saastamoinen, T.Sonoda, C.Weber

Half-life, branching-ratio, and Q-value measurement for the O+ → O+ β+ emitter 42Ti

RADIOACTIVITY 42Ti(EC); measured Eγ, βγ-coin, half-life, branching ratio, Q value from measured mass differences; deduced logft value for 0+ to 0+ superallowed β transition.

ATOMIC MASSES 42Ti, 42Sc, 42mSc, 42Ca; measured mass differences using JYFLTRAP Penning-trap spectrometer; deduced Q values.

doi: 10.1103/PhysRevC.80.035502
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2009RA11      Phys.Rev.Lett. 103, 042501 (2009)

S.Rahaman, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, J.Rissanen, J.Suhonen, C.Weber, J.Aysto

Accurate Q Value for the 112Sn Double-β Decay and its Implication for the Search of the Neutrino Mass

ATOMIC MASSES 112Sn; Measured atomic masses using precision cryogenic Penning-trap spectrometer; Deduced Q-value for 2β-decay.

doi: 10.1103/PhysRevLett.103.042501
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Note: The following list of authors and aliases matches the search parameter J.Aysto: , J.H.AYSTO