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NSR database version of May 30, 2024.

Search: Author = C.Izzo

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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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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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2022PO02      Phys.Rev. C 105, L041301 (2022)

W.S.Porter, B.Ashrafkhani, J.Bergmann, C.Brown, T.Brunner, J.D.Cardona, D.Curien, I.Dedes, T.Dickel, J.Dudek, E.Dunling, G.Gwinner, Z.Hockenbery, J.D.Holt, C.Hornung, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, G.Kripko-Koncz, E.M.Lykiardopoulou, T.Miyagi, I.Mukul, T.Murbock, W.R.Plass, M.P.Reiter, J.Ringuette, C.Scheidenberger, R.Silwal, C.Walls, H.L.Wang, Y.Wang, J.Yang, J.Dilling, A.A.Kwiatkowski

Mapping the N=40 island of inversion: Precision mass measurements of neutron-rich Fe isotopes

ATOMIC MASSES 63,64,65,65m,66,67,68,69,69m,70Fe; measured time-of-flight; deduced mass excess, S(2n), pairing gap. Systematics of S(2n) values for Z=24–28 isotope chains. Compared to mean-field calculations employing recent Woods-Saxon Hamiltonian and results from the multishell valence-space in-medium similarity renormalization group (VS-IMSRG). Comparison to recommended values from AME2020. TITAN (TRIUMF’s Ion Trap for Atomic and Nuclear science) Multiple-Reflection Time-of- Flight Mass Spectrometer.

doi: 10.1103/PhysRevC.105.L041301
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2022PO06      Phys.Rev. C 106, 024312 (2022)

W.S.Porter, E.Dunling, E.Leistenschneider, J.Bergmann, G.Bollen, T.Dickel, K.A.Dietrich, A.Hamaker, Z.Hockenbery, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, Y.Lan, I.Miskun, I.Mukul, T.Murbock, S.F.Paul, W.R.Plass, D.Puentes, M.Redshaw, M.P.Reiter, R.Ringle, J.Ringuette, R.Sandler, C.Scheidenberger, R.Silwal, R.Simpson, C.S.Sumithrarachchi, A.Teigelhofer, A.A.Valverde, R.Weil, I.T.Yandow, J.Dilling, A.A.Kwiatkowski

Investigating nuclear structure near N=32 and N=34: Precision mass measurements of neutron-rich Ca, Ti, and V isotopes

ATOMIC MASSES 54Ca, 52,54,55,56Ti, 54,55,56,57,58V; measured time-of-flight ion-cyclotron-resonances (ToF-ICR) using TRIUMF-TITAN multiple-reflection time-of-flight mass spectrometer (MR-ToF-MS) and the NSCL(MSU)-LEBIT Penning trap mass spectrometer; deduced mass excesses. Comparison with evaluated data in AME2020, and with valence-space in-medium similarity renormalization group (VS-IMSRG) calculations. Systematics of S(2n) values in 46,47,48,49,50,51K, 47,48,49,50,51,52,53,54Ca, 48,49,50,51,52,53,54,55,56,57Sc, 49,50,51,52,53,54,55,56,57Sc, 49,50,51,52,53,54,55,56Ti, 50,51,52,53,54,55,56,57,58,59V, 51,52,53,54,55,56,57,58,59,60Cr.

doi: 10.1103/PhysRevC.106.024312
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2022SI20      Phys.Lett. B 833, 137288 (2022)

R.Silwal, C.Andreoiu, B.Ashrafkhani, J.Bergmann, T.Brunner, J.Cardona, K.Dietrich, E.Dunling, G.Gwinner, Z.Hockenbery, J.D.Holt, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, Y.Lan, D.Lunney, E.M.Lykiardopoulou, T.Miyagi, M.Mougeot, I.Mukul, T.Murbock, W.S.Porter, M.Reiter, J.Ringuette, J.Dilling, A.A.Kwiatkowski

Summit of the N=40 island of inversion: Precision mass measurements and ab initio calculations of neutron-rich chromium isotopes

ATOMIC MASSES 59Cr, 61,62,63,64,65Cr; measured frequencies, TOF; deduced mass excess values, pairing gap, two-neutron separation energies, intruder configurations. Comparison with theoretical calculations, AME2020 evaluation. MR-TOF-MS, part of the TRIUMF's Ion Trap for Atomic and Nuclear Science (TITAN) facility.

doi: 10.1016/j.physletb.2022.137288
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2021IZ01      Phys.Rev. C 103, 025811 (2021)

C.Izzo, J.Bergmann, K.A.Dietrich, E.Dunling, D.Fusco, A.Jacobs, B.Kootte, G.Kripko-Koncz, Y.Lan, E.Leistenschneider, E.M.Lykiardopoulou, I.Mukul, S.F.Paul, M.P.Reiter, J.L.Tracy, C.Andreoiu, T.Brunner, T.Dickel, J.Dilling, I.Dillmann, G.Gwinner, D.Lascar, K.G.Leach, W.R.Plass, C.Scheidenberger, M.E.Wieser, A.A.Kwiatkowski

Mass measurements of neutron-rich indium isotopes for r-process studies

ATOMIC MASSES 125,126,127,127m,128,128m,129,129m,130,130m,131,131m,132,133,133m,134In; measured time-of-flight spectra using TITAN multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS) at ISAC-TRIUMF facility; deduced mass excesses. 127m,128m,129m,130m,131m,133mIn; deduced excitation energies of two isomeric states each in 127In, 128In, 129In, and 131In, and one isomeric state each in 130In and 132In. Comparison with recent measurements, evaluated data in AME-2016 and ENSDF database, and with predictions from theoretical mass models: FRDM2012, HFB-24, WS4, KTUY05, and DZ95. Radioactive indium beams produced in UCx(p, X), E=480 MeV reaction, followed by selective ionization using an ion-guide laser ion source (IG-LIS), and mass separated by ISAC mass separator, and finally sent to MR-TOF-MS system consisting of a helium-filled rf transport system and injection trap, an electrostatic time-of-flight mass analyzer, and a MagneTOF detector. 128,128mIn, 128,128mSn, 128Sb, 128Cs, 128I, 128Te, 128Xe; measured mass spectrum for A=128 nuclei. Systematics of energies of 1/2- isomers in 101,103,105,107,109,111,113,115,117,119,121,123,125,127,129,131,133In. Relevance to future r-process calculations, including the effect of isomers.

doi: 10.1103/PhysRevC.103.025811
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2021MU05      Phys.Rev. C 103, 044320 (2021)

I.Mukul, C.Andreoiu, J.Bergmann, M.Brodeur, T.Brunner, K.A.Dietrich, T.Dickel, I.Dillmann, E.Dunling, D.Fusco, G.Gwinner, C.Izzo, A.Jacobs, B.Kootte, Y.Lan, E.Leistenschneider, E.M.Lykiardopoulou, S.F.Paul, M.P.Reiter, J.L.Tracy, J.Dilling, A.A.Kwiatkowski

Examining the nuclear mass surface of Rb and Sr isotopes in the A ≈ 104 region via precision mass measurements

ATOMIC MASSES 99,100,101,102,103Rb, 99,100,101,102,103,104,105Sr; measured time-of-flight spectra using Multiple-Reflection Time-of-Flight Mass Separator (MR-TOF-MS) at the TITAN-TRIUMF facility; deduced mass excesses, S(2n), S(n), neutron pairing gaps, fractional r-process abundance for Rb and Sr isotopes relative to most abundant isotopes using waiting point approximation. Comparison with previous experimental values, and with AME2016 evaluation. Discussed astrophysical implications for the r-process. Beams of rubidium and strontium isotopes produced in U(p, X), E=480 MeV reaction at the ISAC-TRIUMF facility, followed by ionization using TRIUMF's Resonant Laser Ionization Ion Source (TRILIS) and mass separated using a dipole magnet.

doi: 10.1103/PhysRevC.103.044320
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2021PA44      Phys.Rev. C 104, 065803 (2021)

S.F.Paul, J.Bergmann, J.D.Cardona, K.A.Dietrich, E.Dunling, Z.Hockenbery, C.Hornung, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, Y.Lan, E.Leistenschneider, E.M.Lykiardopoulou, I.Mukul, T.Murbock, W.S.Porter, R.Silwal, M.B.Smith, J.Ringuette, T.Brunner, T.Dickel, I.Dillmann, G.Gwinner, M.MacCormick, M.P.Reiter, H.Schatz, N.A.Smirnova, J.Dilling, A.A.Kwiatkowski

Mass measurements of 60-63Ga reduce x-ray burst model uncertainties and extend the evaluated T=1 isobaric multiplet mass equation

ATOMIC MASSES 60,61,62,63Ga; measured mass spectra using the TITAN multiple-reflection time-of-flight (MR-TOF) mass spectrometer at TRIUMF-ISAC facility; deduced mass excesses and S(p), and compared with previous experimental results and AME2020 evaluation, and theoretical calculations for S(p). Discussed isobaric multiplet mass equation (IMME) for A=60, and systematic trend for A=42-62 even-A nuclei. Relevance of 60,61Ga mass measurements for the rp process in x-ray bursts, and for 60Zn waiting point nucleus. 60,61,62,63Ga isotopes produced in Zr(p, X), E=480 MeV, and selectively ionized by TRIUMF's Resonant Laser Ion Source (TRILIS).

doi: 10.1103/PhysRevC.104.065803
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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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2019SA39      Phys.Rev. C 100, 024309 (2019)

R.Sandler, G.Bollen, N.D.Gamage, A.Hamaker, C.Izzo, D.Puentes, M.Redshaw, R.Ringle, I.Yandow

Investigation of the potential ultralow Q-value β-decay candidates 89Sr and 139Ba using Penning trap mass spectrometry

ATOMIC MASSES 89Y, 139La; measured cyclotron frequency ratios, and mass excesses using LEBIT facility at NSCL-MSU, with 85,87Rb as references for 89Y and 136Xe for 139La; deduced Q(β-) values for 89Sr to 89Y and 139Ba to 139La decays. Comparison with AME-2016 values. Discussed potential ultra-low Q values for decay to excited states in 89Y and 139La.

doi: 10.1103/PhysRevC.100.024309
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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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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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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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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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