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NSR database version of April 11, 2024.

Search: Author = M.Eibach

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2023QU02      Phys.Rev. C 107, 024313 (2023)

F.G.A.Quarati, G.Bollen, P.Dorenbos, M.Eibach, K.Gulyuz, A.Hamaker, C.Izzo, D.K.Keblbeck, X.Mougeot, D.Puentes, M.Redshaw, R.Ringle, R.Sandler, J.Surbrook, I.Yandow

Measurements and computational analysis of the natural decay of 176Lu

RADIOACTIVITY 176Lu(β-), (EC); measured Eγ, Iγ, X-rays, self-scintillation spectra of Lu-containing crystal, Eβ, Iβ, βγ-coin; shape of the β-spectrum Eβ, experimental shape factor, 176Lu β endpoint energy, branching ratios for the β-decay to 6+ and 8+ of 176Hf, Q-values, upper limit for the EC-decay branch. 176Lu(β-); calculated σpectrum Eβ, logft values. 176Yb(2β-); deduced Q-values. Q-values area based on the measured cyclotron frequencies published in this paper. Spectra measurements performed with lutetium-containing scintillator crystals (LuAG:Pr and LSO:Ce) surrounded by NaI(Tl) and CeBr3 spectrometers.

ATOMIC MASSES 176Lu, 176Hf, 176Yb; measured cyclotron frequencies ratios for combinations of 176Lu, 176Hf and 176Yb ions among themselves; deduced mass excess for 176Lu and 176Hf based on the known values for 176Yb and measured ratios. Comparison to AME2020 and other experimental data. Penning trap mass spectrometry (PTMS) at Low Energy Beam and Ion Trap (LEBIT) facility at the National Superconducting Cyclotron Laboratory (NSCL).

doi: 10.1103/PhysRevC.107.024313
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2022KA45      Phys.Rev. C 106, 054325 (2022)

O.Kaleja, B.Andjelic, O.Bezrodnova, K.Blaum, M.Block, S.Chenmarev, P.Chhetri, C.Droese, Ch.E.Dullmann, M.Eibach, S.Eliseev, J.Even, P.Filianin, F.Giacoppo, S.Gotz, Yu.Gusev, M.J.Gutierrez, F.P.Hessberger, N.Kalantar-Nayestanaki, J.J.W.van de Laar, M.Laatiaoui, S.Lohse, N.Martynova, E.Minaya Ramirez, A.K.Mistry, T.Murbock, Yu.Novikov, S.Raeder, D.Rodriguez, F.Schneider, L.Schweikhard, P.G.Thirolf, A.Yakushev

Direct high-precision mass spectrometry of superheavy elements with SHIPTRAP

ATOMIC MASSES 251,254No, 254,255,256Lr, 257Rf; measured cyclotron frequency; deduced mass excesses, two-neutron shell gap. Comparison to AME2020. Phase-imaging ion-cyclotron resonance mass spectrometry (PI-ICR MS) at SHIPTRAP setup. Isotopes produced in following reactions 206Pb(48Ca, 3n)251No, E=4.8 MeV/nucleon, 208Pb(48Ca, 2n)254No, E=4.56 MeV/nucleon, 209Bi(48Ca, 3n)254Lr, E=4.81 MeV/nucleon, 209Bi(48Ca, 2n)255Lr, E=4.56 MeV/nucleon, 209Bi(48Ca, n)256Lr, E=4.5 MeV/nucleon, 208Pb(50Ti, n)257Rf, E=4.65 MeV/nucleon at GSI Darmstadt.

RADIOACTIVITY 258Db, 254Lr(α); deduced Q values. Comparison to other experimental data.

doi: 10.1103/PhysRevC.106.054325
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2022ME04      Phys.Rev. C 105, 025804 (2022)

Z.Meisel, A.Hamaker, G.Bollen, B.A.Brown, M.Eibach, K.Gulyuz, C.Izzo, C.Langer, F.Montes, W.-J.Ong, D.Puentes, M.Redshaw, R.Ringle, R.Sandler, H.Schatz, S.Schwarz, C.S.Sumithrarachchi, A.A.Valverde, I.T.Yandow

Improved nuclear physics near A=61 refines urca neutrino luminosities in accreted neutron star crusts

ATOMIC MASSES 61Zn; measured time of flight, cyclotron frequency; deduced mass excess. Compared with AME2020 results. Low Energy Beam and Ion Trap (LEBIT) facility at the NSCL.

NUCLEAR REACTIONS 61Zn, 60Cu(p, γ), T=0.10-10 GK; deduced Q from obtained new value for 61Zn atomic mass, astrophysical reaction rates. Computed neutrino luminosity from the mass number A = 61 urca cooling source in accreted neutron-star crusts. Comparison to NON-SMOKER, TALYS codes results.

doi: 10.1103/PhysRevC.105.025804
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2020PU02      Phys.Rev. C 101, 064309 (2020)

D.Puentes, G.Bollen, M.Brodeur, M.Eibach, K.Gulyuz, A.Hamaker, C.Izzo, S.M.Lenzi, M.MacCormick, M.Redshaw, R.Ringle, R.Sandler, S.Schwarz, P.Schury, N.A.Smirnova, J.Surbrook, A.A.Valverde, A.C.C.Villari, I.T.Yandow

High-precision mass measurements of the isomeric and ground states of 44V: Improving constraints on the isobaric multiplet mass equation parameters of the A=44, 0+ quintet

ATOMIC MASSES 44,44mV; measured cyclotron frequencies, mass excesses of ground and isomeric state using the time-of-flight ion cyclotron resonance method with the Penning trap mass spectrometer LEBIT of NSCL-MSU. 44V beam was produced in 9Be(58Ni, X), E=160 MeV/nucleon reaction and purified in the A1900 Fragment Separator. 44V; deduced levels, J, π, energy of the isomeric state, S(p). 44Cr; discussed β+ and proton decay of 44Cr and constraint on its mass. 44V, 44Sc, 44Ti; analyzed coefficients of quadratic isobaric multiplet mass equation (IMME) coefficients, mirror and triplet energy differences of T=1 triplet as a function of spin. A=42-58; analyzed experimental and theoretical coefficients of the lowest triplets in the pf shell for even-A nuclei. Comparison with previous experimental values, and with theoretical predictions.

doi: 10.1103/PhysRevC.101.064309
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2019SA36      Phys.Rev. C 100, 014308 (2019)

R.Sandler, G.Bollen, J.Dissanayake, M.Eibach, K.Gulyuz, A.Hamaker, C.Izzo, X.Mougeot, D.Puentes, F.G.A.Quarati, M.Redshaw, R.Ringle, I.Yandow

Direct determination of the 138La β-decay Q value using Penning trap mass spectrometry

ATOMIC MASSES 138La, 138Ce, 138Ba, 136Xe; measured cyclotron frequency ratios, time-of-flight ion cyclotron resonance for 138La using Penning trap mass spectrometry at LEBIT-NSCL-MSU facility; deduced atomic mass excesses. Comparison with AME-2016 evaluation.

RADIOACTIVITY 138La(β-), (EC); 138Ce(2EC); deduced Q values; calculated 138La β-decay curve, experimental shape factor, 138La ϵ decay probability ratios for K, L, and M shells. Comparison with previous measurements.

doi: 10.1103/PhysRevC.100.014308
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2019SU25      Hyperfine Interactions 240, 65 (2019)

J.Surbrook, M.MacCormick, G.Bollen, M.Brodeur, M.Eibach, K.Gulyuz, A.Hamaker, C.Izzo, S.M.Lenzi, D.Puentes, M.Redshaw, R.Ringle, R.Sandler, S.Schwarz, P.Schury, N.Smirnova, C.Sumithrarachchi, A.A.Valverde, A.C.C.Villari, I.T.Yandow

Precision mass measurements of 44V and 44mV for nucleon-nucleon interaction studies

ATOMIC MASSES 44V, 44mV; measured frequencies, TOF; deduced masses. Penning trap mass spectrometry in the LEBIT 9.4 T Penning trap at the National Superconducting Cyclotron Laboratory at Michigan State University.

doi: 10.1007/s10751-019-1602-y
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2018CH45      Acta Phys.Pol. B49, 599 (2018)

P.Chhetri, C.S.Moodley, S.Raeder, M.Block, F.Giacoppo, S.Gotz, F.P.Hessberger, M.Eibach, O.Kaleja, M.Laatiaoui, A.K.Mistry, T.Murbock, Th.Walther

Investigation of the First Ionization Potential of Ytterbium in Argon Buffer Gas

ATOMIC PHYSICS Yb; measured photoexcitation to excite Rydberg states in natYb (chemical homologue of No) using the fact of recent observation of such states in No (Z=102) inside buffer gas cell; measured Rydberg levels with a similar principle quantum number as observed on-line for No using laser resonance ionization spectroscopy ultra-sensitive method based on RAdiation Detected Resonance Ionization Spectroscopy (RADRIS) technique in a buffer gas environment laser resonance ionization spectroscopy in a buffer gas cell to determine the ionization potential of Yb (Z=70); deduced Rydberg states energy, principal quantum number, ionization potentials and the dependence on gas pressure; extrapolated ionization potential in vacuum; compared with literature value.

doi: 10.5506/aphyspolb.49.599
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2018IZ01      Phys.Rev. C 97, 014309 (2018)

C.Izzo, G.Bollen, M.Brodeur, M.Eibach, K.Gulyuz, J.D.Holt, J.M.Kelly, M.Redshaw, R.Ringle, R.Sandler, S.Schwarz, S.R.Stroberg, C.S.Sumithrarachchi, A.A.Valverde, A.C.C.Villari

Precision mass measurements of neutron-rich Co isotopes beyond N=40

ATOMIC MASSES 68,69Co; measured time-of-flight ion cyclotron resonances (TOF-ICR), mass excesses using LEBIT Penning trap system at NSCL-MSU facility. Comparison with AME-2016 values. Systematics of S(2n) values in N=36-44 Fe, Co, Ni and Cu nuclides. Discussed low- and high-spin isomers in 68Co and 69Co, and concluded the main contribution from the high-spin activities.

RADIOACTIVITY 68,69Co(β-)[from 9Be(76Ge, X), E=130 MeV/nucleon followed by fragment selection using A1900 fragment separator]; measured Eγ, Iγ from the decay of 68Co. 68,69Co; calculated levels, J, π by ab initio approach using the valence-space in-medium similarity renormalization group (VS-IMSRG) framework based on two-nucleon (NN) and three-nucleon (3N) forces from chiral effective field theory; discussed energy ordering of the ground state and isomer.

doi: 10.1103/PhysRevC.97.014309
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2018ON01      Phys.Rev. C 98, 065803 (2018)

W.-J.Ong, A.A.Valverde, M.Brodeur, G.Bollen, M.Eibach, K.Gulyuz, A.Hamaker, C.Izzo, D.Puentes, M.Redshaw, R.Ringle, R.Sandler, S.Schwarz, C.S.Sumithrarachchi, J.Surbrook, A.C.C.Villari, I.T.Yandow

Mass measurement of 51Fe for the determination of the 51Fe(p, γ)52Co reaction rate

ATOMIC MASSES 51Fe; measured time of flight, cyclotron frequency ratios, and mass excess using the Penning trap of LEBIT-NSCL. 52Co; deduced S(p). Comparison with data in AME-2016 evaluation.

NUCLEAR REACTIONS 51Fe(p, γ), T9=0.1-10; calculated astrophysical reaction rates; deduced REACLIB fits at 0.1-10 GK.

NUCLEAR STRUCTURE 52Co; calculated levels in the unbound region from 1560 to 3989 keV, proton resonances, J, π, Γp, Γγ, spectroscopic factors, using shell model with the GXPF1A interaction.

doi: 10.1103/PhysRevC.98.065803
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2018VA01      Phys.Rev.Lett. 120, 032701 (2018)

A.A.Valverde, M.Brodeur, G.Bollen, M.Eibach, K.Gulyuz, A.Hamaker, C.Izzo, W.-J.Ong, D.Puentes, M.Redshaw, R.Ringle, R.Sandler, S.Schwarz, C.S.Sumithrarachchi, J.Surbrook, A.C.C.Villari, I.T.Yandow

High-Precision Mass Measurement of 56Cu and the Redirection of the rp-Process Flow

ATOMIC MASSES 56Cu; measured time-of-flight ion cyclotron resonance; deduced cyclotron frequency ratios, mass excess. Comparison with AME2016 and available data.

doi: 10.1103/PhysRevLett.120.032701
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2017KA53      Phys.Rev. C 96, 044321 (2017)

R.M.E.B.Kandegedara, G.Bollen, M.Eibach, N.D.Gamage, K.Gulyuz, C.Izzo, M.Redshaw, R.Ringle, R.Sandler, A.A.Valverde

β-decay Q values among the A = 50 Ti-V-Cr isobaric triplet and atomic masses of 46, 47, 49, 50Ti, 50, 51V, and 50, 52-54Cr

ATOMIC MASSES 46,47,49,50Ti, 50,51V, 50,52,53,54Cr; measured cyclotron frequency ratios with respect to 48Ti using Low Energy Beam and Ion Trap (LEBIT) facility at NSCL-MSU; deduced mass excesses and compared with AME-2016 values. 48,49,50Ti; deduced S(n) and compared with experimental values from (n, γ).

RADIOACTIVITY 50V(EC), (β-); 50Cr(2EC); deduced Q values from mass excesses and compared with AME-2016 values.

doi: 10.1103/PhysRevC.96.044321
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2017LO13      Phys.Rev. C 96, 034315 (2017)

Ch.Lorenz, L.G.Sarmiento, D.Rudolph, D.E.Ward, M.Block, F.P.Hessberger, D.Ackermann, L.-L.Andersson, M.L.Cortes, C.Droese, M.Dworschak, M.Eibach, U.Forsberg, P.Golubev, R.Hoischen, I.Kojouharov, J.Khuyagbaatar, D.Nesterenko, I.Ragnarsson, H.Schaffner, L.Schweikhard, S.Stolze, J.Wenzl

Quantum-state-selective decay spectroscopy of 213Ra

RADIOACTIVITY 213Ra(α), (EC), (β+)[from 170Er(48Ca, 5n), E=4.30 MeV/nucleon using velocity filter SHIP and SHIPTRAP Penning trap at GSI UNILAC facility]; 209Rn(α), (EC), (β+)[from 213Ra α decay]; 213Fr(α), (EC), (β+)[from 213Ra EC decay]; 209At(α), (EC), (β+)[from 209Rn EC decay]; measured Eα, Iα, Eγ, Iγ, αγ-coin, (x ray)α-coin, α and EC+β+ branching ratios using TASISpec setup at GSI. GEANT4 simulations. 209Rn; deduced levels, α feedings, γ-ray branching ratios, multipolarity. Comparison with evaluated data, and Nilsson-Strutinsky and shell-model calculations. 209Rn; calculated levels, J, π using shell model with pbpop interaction, total energy surface in (ϵ2, ϵ4) plane, and compared with experimental data, and other theoretical calculations.

doi: 10.1103/PhysRevC.96.034315
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2016EI01      Phys.Rev. C 94, 015502 (2016)

M.Eibach, G.Bollen, K.Gulyuz, C.Izzo, M.Redshaw, R.Ringle, R.Sandler, A.A.Valverde

Double resonant enhancement in the neutrinoless double-electron capture of 190Pt

ATOMIC MASSES 190,194Pt, 186,190Os; measured ratio of the cyclotron frequencies using LEBIT Penning trap mass spectrometer at NSCL-MSU; deduced precise Q value for ϵϵ decay of 190Pt. Comparison with AME-2012 evaluation.

RADIOACTIVITY 190Pt(2EC); measured precise Q value from mass measurements of 190Pt and 190Os; deduced parameters of the resonantly enhanced 0νϵϵ decays to excited states in 190Os. Comparison of Q value with AME-2012 evaluation.

doi: 10.1103/PhysRevC.94.015502
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2016GA33      Phys.Rev. C 94, 025505 (2016)

N.D.Gamage, G.Bollen, M.Eibach, K.Gulyuz, C.Izzo, R.M.E.B.Kandegedara, M.Redshaw, R.Ringle, R.Sandler, A.A.Valverde

Precise determination of the 113Cd fourth-forbidden non-unique β-decay Q value

ATOMIC MASSES 113Cd, 113,115In, 112Cd; measured cyclotron frequency ratios of 113In/115In, 113In/112Cd, 113Cd/115In, and 113Cd/112Cd by time-of-flight ion-cyclotron-resonance (TOF-ICR) technique using LEBIT Penning trap of NSCL-MSU facility. 113Cd, 113In, 112Cd; deduced mass excesses, precise Q value for the fourth-forbidden β- transition from the decay of 113Cd g.s. Comparison with previous experimental results and AME-12 evaluated data. Relevance to ββ decay searches in cadmium and other isotopes.

doi: 10.1103/PhysRevC.94.025505
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2016GU02      Phys.Rev.Lett. 116, 012501 (2016)

K.Gulyuz, G.Bollen, M.Brodeur, R.A.Bryce, K.Cooper, M.Eibach, C.Izzo, E.Kwan, K.Manukyan, D.J.Morrissey, O.Naviliat-Cuncic, M.Redshaw, R.Ringle, R.Sandler, S.Schwarz, C.S.Sumithrarachchi, A.A.Valverde, A.C.C.Villari

High Precision Determination of the β Decay QEC Value of 11C and Implications on the Tests of the Standard Model

ATOMIC MASSES 11C, 10,11B; measured TOF ion cyclotron resonance spectra; deduced mass excess values. Comparison with AME2012 evaluation.

doi: 10.1103/PhysRevLett.116.012501
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2015EI01      Phys.Rev. C 92, 045502 (2015)

M.Eibach, G.Bollen, M.Brodeur, K.Cooper, K.Gulyuz, C.Izzo, D.J.Morrissey, M.Redshaw, R.Ringle, R.Sandler, S.Schwarz, C.S.Sumithrarachchi, A.A.Valverde, A.C.C.Villari

Determination of the QEC values of the T=1/2 mirror nuclei 21Na and 29P at LEBIT

ATOMIC MASSES 21Na, 29P; measured cyclotron frequency ratios of 21Ne, 21Na and 29P, 12C with TOF-ICR technique using LEBIT Penning trap mass spectrometer at NSCL-MSU; deduced Q(EC) values, Ft and Vud for 21Na and 29P decays. Comparison with previous experimental values and AME-2012.

RADIOACTIVITY 21Na, 29P(β+), (EC)[from 9Be(36Ar, X), E=150 MeV/nucleon using A1900 separator at NSCL-MSU]; measured Q(EC) using LEBIT Penning trap mass spectrometer. Comparison with previous experimental values.

doi: 10.1103/PhysRevC.92.045502
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2015GU09      Phys.Rev. C 91, 055501 (2015)

K.Gulyuz, J.Ariche, G.Bollen, S.Bustabad, M.Eibach, C.Izzo, S.J.Novario, M.Redshaw, R.Ringle, R.Sandler, S.Schwarz, A.A.Valverde

Determination of the direct double-β Q value of 96Zr and atomic masses of 90-92, 94, 96Zr and 92, 94-98, 100Mo

ATOMIC MASSES 90,91,92,94,96Zr, 92,94,95,96,97,98,100Mo; measured cyclotron frequency ratios, mass excesses using LEBIT Penning trap mass spectrometer facility at NSCL-MSU; deduce Q value for double-β decay of 96Zr. Relevance to neutrinoless double-β decay of 96Zr.

doi: 10.1103/PhysRevC.91.055501
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2015SC13      Eur.Phys.J. A 51, 89 (2015)

F.Schneider, T.Beyer, K.Blaum, M.Block, S.Chenmarev, H.Dorrer, Ch.E.Dullmann, K.Eberhardt, M.Eibach, S.Eliseev, J.Grund, U.Koster, Sz.Nagy, Yu.N.Novikov, D.Renisch, A.Turler, K.Wendt

Preparatory studies for a high-precision Penning-trap measurement of the 163Ho electron capture Q-value

doi: 10.1140/epja/i2015-15089-8
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2015VA05      Phys.Rev. C 91, 037301 (2015)

A.A.Valverde, G.Bollen, K.Cooper, M.Eibach, K.Gulyuz, C.Izzo, D.J.Morrissey, R.Ringle, R.Sandler, S.Schwarz, C.S.Sumithrarachchi, A.C.C.Villari

Penning trap mass measurement of 72Br

ATOMIC MASSES 72,72mBr; measured time-of-flight cyclotron resonance, mass excess using Low Energy Beam and Ion Trap (LEBIT) Penning trap mass spectrometer at NSCL-MSU facility; deduced precise energy of the 72Br isomer. Comparison with AME-2012. 72Br and 72mBr produced in 9Be(78Kr, X), E=150 MeV/nucleon reaction.

doi: 10.1103/PhysRevC.91.037301
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2015VA08      Phys.Rev.Lett. 114, 232502 (2015)

A.A.Valverde, G.Bollen, M.Brodeur, R.A.Bryce, K.Cooper, M.Eibach, K.Gulyuz, C.Izzo, D.J.Morrissey, M.Redshaw, R.Ringle, R.Sandler, S.Schwarz, C.S.Sumithrarachchi, A.C.C.Villari

First Direct Determination of the Superallowed β-Decay QEC Value for 14O

RADIOACTIVITY 14O(EC), (β+) [from Be(16O, X)14O, E=150 MeV/nucleon]; measured time-of-flight cyclotron resonance, frequency ratios; deduced T1/2, ground-state Q-value, log ft. Comparison with available data.

doi: 10.1103/PhysRevLett.114.232502
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2014EI01      Phys.Rev. C 89, 064318 (2014)

M.Eibach, T.Beyer, K.Blaum, M.Block, Ch.E.Dullmann, K.Eberhardt, J.Grund, Sz.Nagy, H.Nitsche, W.Nortershauser, D.Renisch, K.P.Rykaczewski, F.Schneider, C.Smorra, J.Vieten, M.Wang, K.Wendt

Direct high-precision mass measurements on 241, 243Am, 244Pu, and 249Cf

ATOMIC MASSES 241,243Am, 244Pu, 249Cf; measured Time-of-flight spectrum of carbon cluster ions, cyclotron frequencies by TOF-ICR technique using TRIGA-TRAP Penning-trap mass spectrometer at Mainz; deduced masses. Comparison with data in AME-2012. Analyzed AME-2012 masses of 84 nuclides in Z=82-112, N=129-166 region, and improved uncertainties with the use of new mass measurements in this work.

doi: 10.1103/PhysRevC.89.064318
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2014KW04      Phys.Rev. C 89, 045502 (2014)

A.A.Kwiatkowski, T.Brunner, J.D.Holt, A.Chaudhuri, U.Chowdhury, M.Eibach, J.Engel, A.T.Gallant, A.Grossheim, M.Horoi, A.Lennarz, T.D.Macdonald, M.R.Pearson, B.E.Schultz, M.C.Simon, R.A.Senkov, V.V.Simon, K.Zuber, J.Dilling

New determination of double-β-decay properties on 48Ca High-precision Qββ-value measurement and improved nuclear matrix element calculations

ATOMIC MASSES 48Ca, 48Ti; measured cyclotron-frequencies, resonances using TITAN system consisting of radio frequency quadrupole (RFQ) beam cooler and buncher, an electron beam ion trap (EBIT), and a Penning trap (MPET) at ISAC-TRIUMF facility; deduced Q value for double β decay of 48Ti. Comparison with previous measurements and atomic mass evaluations (AME-2003 and AME-2012).

RADIOACTIVITY 48Ca(2β-); measured precise Q-value using TITAN system at ISAC-TRIUMF facility; calculated ββ nuclear matrix element by including effects of levels outside the valence space in a shell-model; discussed case for a new experiment on double-beta decay of 48Ca.

doi: 10.1103/PhysRevC.89.045502
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2013DR04      Eur.Phys.J. A 49, 13 (2013)

C.Droese, D.Ackermann, L.-L.Andersson, K.Blaum, M.Block, M.Dworschak, M.Eibach, S.Eliseev, U.Forsberg, E.Haettner, F.Herfurth, F.P.Hessberger, S.Hofmann, J.Ketelaer, G.Marx, E.Minaya Ramirez, D.Nesterenko, Yu.N.Novikov, W.R.Plass, D.Rodriguez, D.Rudolph, C.Scheidenberger, L.Schweikhard, S.Stolze, P.G.Thirolf, C.Weber

High-precision mass measurements of 203-207Rn and 213Ra with SHIPTRAP

NUCLEAR REACTIONS Dy(48Ca, 204Rn), (48Ca, 205Rn), (48Ca, 206Rn), (48Ca, 207Rn), E=4.4 MeV/nucleon;170Er(48Ca, 213Ra), E=4.4 MeV;170Er(40Ar, 203Rn), (40Ar, 204Rn), (40Ar, 205Rn), E=4.7 MeV/nucleon;160Gd(50Ti, 204Rn), (40Ar, 205Rn), (40Ar, 206Rn), E=4.55 MeV/nucleon; measured evaporation residues, frequency ratio using tandem Penning trap spectrometer SHIPTRAP; deduced σ, mass excess, 2n separation energy; calculated σ using statistical model code HIVAP. Compared with AME; 2n separation energy compared with trends for Pb, Po, Rn, Ra.

ATOMIC MASSES 203,204,205,206,207Rn, 213Ra; measured frequency ratio, number of resonances; deduced mass. Compared with AME 2003.

doi: 10.1140/epja/i2013-13013-0
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2012MI27      Science 337, 1207 (2012)

E.Minaya-Ramirez, D.Ackermann, K.Blaum, M.Block, C.Droese, C.E.Dullmann, M.Dworschak, M.Eibach, S.Eliseev, E.Haettner, F.Herfurth, F.P.Hessberger, S.Hofmann, J.Ketelaer, G.Marx, M.Mazzocco, D.Nesterenko, Y.N.Novikov, W.R.Plass, D.Rodriguez, C.Scheidenberger, L.Schweikhard, P.G.Thirolf, C.Weber

Direct Mapping of Nuclear Shell Effects in the Heaviest Elements

ATOMIC MASSES 252,253,254,255No, 255,256Lr; measured time-of-flight ion-cyclotron-resonance; deduced frequency ratios, mass excess. Comparison with theoretical calculations, SHIPTRAP results.

doi: 10.1126/science.1225636
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2012SM01      Phys.Rev. C 85, 027601 (2012)

C.Smorra, T.Beyer, K.Blaum, M.Block, Ch.E.Dullmann, K.Eberhardt, M.Eibach, S.Eliseev, Sz.Nagy, W.Nortershauser, D.Renisch

Direct mass measurements of cadmium and palladium isotopes and their double-β transition Q values

ATOMIC MASSES 106,108,110Cd, 106,108,110Pd; measured cyclotron frequency ratios, masses and mass excesses by Penning-trap mass spectrometers SHIPTRAP and ISOLTRAP. Comparison with AME-2003 evaluation.

RADIOACTIVITY 106,108Cd(2β+), (2EC); 110Pd(2β-); measured Q values by Penning-trap mass spectrometers. Comparison with AME-2003 evaluation.

doi: 10.1103/PhysRevC.85.027601
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2012SM07      Phys.Rev. C 86, 044604 (2012)

C.Smorra, T.R.Rodriguez, T.Beyer, K.Blaum, M.Block, Ch.E.Dullmann, K.Eberhardt, M.Eibach, S.Eliseev, K.Langanke, G.Martinez-Pinedo, Sz.Nagy, W.Nortershauser, D.Renisch, V.M.Shabaev, I.I.Tupitsyn, N.A.Zubova

Q value and half-life of double-electron capture in 184Os

ATOMIC MASSES 184Os, 184W; measured time-of-flight and cyclotron frequency ratios using Penning-trap mass spectrometer TRIGA-TRAP; deduced mass excess, Q value for 2β decay.

RADIOACTIVITY 184Os(2EC); measured Q-value using Penning-trap; calculated nuclear matrix element, T1/2. Energy density functional (EDF) calculations.

doi: 10.1103/PhysRevC.86.044604
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2011KE03      Phys.Rev. C 84, 014311 (2011)

J.Ketelaer, G.Audi, T.Beyer, K.Blaum, M.Block, R.B.Cakirli, R.F.Casten, C.Droese, M.Dworschak, K.Eberhardt, M.Eibach, F.Herfurth, E.Minaya-Ramirez, Sz.Nagy, D.Neidherr, W.Nortershauser, C.Smorra, M.Wang

Mass measurements on stable nuclides in the rare-earth region with the Penning-trap mass spectrometer TRIGA-TRAP

ATOMIC MASSES 153Eu, 152,154,155,156,157,158,160Gd, 175,176Lu, 176,177,178,179,180Hf; measured masses using TOF-ICR technique and TRIGA-TRAP Penning-trap mass spectrometer; deduced δVpn values; evaluated mass excesses.

doi: 10.1103/PhysRevC.84.014311
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2010BL03      Hyperfine Interactions 196, 225 (2010)

M.Block, D.Ackermann, K.Blaum, C.Droese, M.Dworschak, M.Eibach, S.Eliseev, T.Fleckenstein, E.Haettner, F.Herfurth, F.P.Hessberger, S.Hofmann, J.Ketelaer, J.Ketter, H.-J.Kluge, G.Marx, M.Mazzocco, Yu.N.Novikov, W.R.Plass, A.Popeko, S.Rahaman, D.Rodriguez, C.Scheidenberger, L.Schweikhard, P.G.Thirolf, G.K.Vorobyev, C.Weber

Penning trap mass measurements of transfermium elements with SHIPTRAP

ATOMIC MASSES 252,253,254No; measured cyclotron resonance curves; deduced masses.

doi: 10.1007/s10751-010-0161-z
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2009KE07      Eur.Phys.J. A 42, 311 (2009)

J.Ketelaer, K.Blaum, M.Block, K.Eberhardt, M.Eibach, R.Ferrer, S.George, F.Herfurth, J.Ketter, Sz.Nagy, J.Repp, L.Schweikhard, C.Smorra, S.Sturm, S.Ulmer

Recent developments in ion detection techniques for Penning trap mass spectrometry at TRIGA-TRAP

doi: 10.1140/epja/i2008-10711-6
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