NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = R.Ringle Found 59 matches. 2024BH03 Phys.Rev. C 109, L022501 (2024) R.Bhandari, G.Bollen, T.Brunner, N.D.Gamage, A.Hamaker, Z.Hockenbery, M.Horana Gamage, D.K.Keblbeck, K.G.Leach, D.Puentes, M.Redshaw, R.Ringle, S.Schwarz, C.S.Sumithrarachchi, I.Yandow First direct 7Be electron-capture Q-value measurement toward high-precision searches for neutrino physics beyond the Standard Model
doi: 10.1103/PhysRevC.109.L022501
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
2023YA31 Phys.Rev. C 108, 065802 (2023) I.T.Yandow, A.Abdullah-Smoot, G.Bollen, A.Hamaker, C.R.Nicoloff, D.Puentes, M.Redshaw, K.Gulyuz, Z.Meisel, W.-J.Ong, R.Ringle, R.Sandler, S.Schwarz, C.S.Sumithrarachchi, A.A.Valverde Mass measurement of 27P to constrain type-I x-ray burst models and validate the isobaric multiplet mass equation for the A=27, T=3/2 isospin quartet
doi: 10.1103/PhysRevC.108.065802
2022GA36 Phys.Rev. C 106, 065503 (2022) M.H.Gamage, R.Bhandari, G.Bollen, N.D.Gamage, A.Hamaker, D.Puentes, M.Redshaw, R.Ringle, S.Schwarz, C.S.Sumithrarachchi, I.Yandow Identification of a potential ultralow-Q-value electron-capture decay branch in 75Se via a precise Penning trap measurement of the mass of 75As ATOMIC MASSES 75As; measured cyclotron frequency; deduced mass excess. Ramsey TOF-ICR technique. Comparison to AME2020 and previous experimental values. Penning trap at LEBIT facility (FRIB). RADIOACTIVITY 75Se(EC), 75Ge(β-); deduced Q-values using new mass value of 75As. Comparison to other experimental data.
doi: 10.1103/PhysRevC.106.065503
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
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
2022PU01 Phys.Rev. C 106, L012801 (2022) D.Puentes, Z.Meisel, G.Bollen, A.Hamaker, C.Langer, E.Leistenschneider, C.Nicoloff, W.-J.Ong, M.Redshaw, R.Ringle, C.S.Sumithrarachchi, J.Surbrook, A.A.Valverde, I.T.Yandow High-precision mass measurement of 24Si and a refined determination of the rp process at the A=22 waiting point ATOMIC MASSES 24Si; measured time-of-flight ion Ramsey cyclotron resonance using Low Energy Beam and Ion Trap (LEBIT) facility at NSCL-MSU; deduced precise mass excess of 24Si using and compared with evaluated data in AME2020, effect on the determination of the rp process at 22Mg waiting point. 24Si produced in 9Be(28Si, X), E=160 MeV/nucleon, followed by separation of fragments using A1900 separator, and magnetic dipole mass separator. NUCLEAR REACTIONS 23Al(p, γ)24Si, T=0.1-1.1 GK; deduced astrophysical reaction rates using resonance levels in 24Si, spectroscopic factors, Γγ and Γp from experimental data and NUSHELLX shell-model calculations. Comparison with literature results for 23Al(p, γ)24Si, 22Mg(p, γ)23Al and 22Mg(α, p)25Al reactions. 22Mg(α, p), T=0.6-1.9 GK; deduced (α, p) flow as function of temperature, onset temperature of the (α, p) process at the 22Mg waiting point to a precision of 9%. Relevance to rp process.
doi: 10.1103/PhysRevC.106.L012801
2021HA47 Nat.Phys. 17, 1408 (2021) A.Hamaker, E.Leistenschneider, R.Jain, G.Bollen, S.A.Giuliani, K.Lund, W.Nazarewicz, L.Neufcourt, C.R.Nicoloff, D.Puentes, R.Ringle, C.S.Sumithrarachchi, I.T.Yandow Precision mass measurement of lightweight self-conjugate nucleus 80Zr ATOMIC MASSES 80,81,82,83Zr; measured time of flight, frequencies; deduced mass excesses, weighted average frequency ratio. Comparison with AME20. Low Energy Beam and Ion Trap (LEBIT) facility.
doi: 10.1038/s41567-021-01395-w
2021LE02 Phys.Rev.Lett. 126, 042501 (2021) E.Leistenschneider, E.Dunling, G.Bollen, B.A.Brown, J.Dilling, A.Hamaker, J.D.Holt, A.Jacobs, A.A.Kwiatkowski, T.Miyagi, W.S.Porter, D.Puentes, M.Redshaw, M.P.Reiter, R.Ringle, R.Sandler, C.S.Sumithrarachchi, A.A.Valverde, I.T.Yandow, TITAN Collaboration Precision Mass Measurements of Neutron-Rich Scandium Isotopes Refine the Evolution of N = 32 and N = 34 Shell Closures ATOMIC MASSES 50,51,52,53,54,55Sc; measured frequencies of cyclotron motion; deduced TOF-ICR spectrum, mass excess, mass ratios. Comparison with the AME2016 atomic mass evaluation data, predictions from both ab initio and phenomenological nuclear theories.
doi: 10.1103/PhysRevLett.126.042501
2021SU04 Phys.Rev. C 103, 014323 (2021) J.Surbrook, G.Bollen, M.Brodeur, A.Hamaker, D.Perez-Loureiro, D.Puentes, C.Nicoloff, M.Redshaw, R.Ringle, S.Schwarz, C.S.Sumithrarachchi, L.J.Sun, A.A.Valverde, A.C.C.Villari, C.Wrede, I.T.Yandow First Penning trap mass measurement of 36Ca ATOMIC MASSES 36Ca; measured masses of 36Ca+ and 36Ca2+ by the time-of-flight ion cyclotron resonance method using the LEBIT 9.4 T Penning-trap facility at NSCL-MSU; deduced mass excess and compared with AME2016 evaluation; interpreted result in the context of the isobaric multiplet mass equation (IMME) and a new ab initio derived calculation that extends the IMME with excellent agreement in the A=36, T=2 isobaric multiplet with the quadratic IMME, and only qualitative agreement with the generalized IMME (GIMME) predictions. Radioactive beam of 36Ca produced in 9Be(40Ca, X), E=140 MeV/nucleon at the Coupled Cyclotron Facility, followed by selection and purification by A1900 fragment separator.
doi: 10.1103/PhysRevC.103.014323
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
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
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
2019SC11 Nucl.Phys. A989, 201 (2019) S.Schwarz, B.R.Barquest, G.Bollen, R.Ferrer, A.A.Kwiatkowski, D.L.Lincoln, D.J.Morrissey, R.Ringle, J.Savory High-precision mass measurements of Ge and As isotopes near N = Z NUCLEAR REACTIONS 9Be(78Kr, x), E=150 MeV/nucleon[producing desired nuclei (64,65Ge, 66,67As) of E about 90 MeV/nucleon]; measured reaction products using upgraded Low Energy Beam Ion Trap (LEBIT) facility at NSCL coupled to high-pressure gas cell; deduced β-decay activity vs mass; resonances in TOF vs frequency using one-RF-pulse and two-pulse-Ramney excitation scheme, mass-dependent frequency shift, frequency ratios for 67Ar/67ArO; deduced mass excess; compared with AME, AME2016 and other published values (to be used also for CVC tests).
doi: 10.1016/j.nuclphysa.2019.06.007
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
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
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
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
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
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
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
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
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
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
2015MA30 Phys.Rev. C 91, 045504 (2015) S.Malbrunot-Ettenauer, T.Brunner, U.Chowdhury, A.T.Gallant, V.V.Simon, M.Brodeur, A.Chaudhuri, E.Mane, M.C.Simon, C.Andreoiu, G.Audi, J.R.C.Lopez-Urrutia, P.Delheij, G.Gwinner, A.Lapierre, D.Lunney, M.R.Pearson, R.Ringle, J.Ullrich, J.Dilling Penning trap mass measurements utilizing highly charged ions as a path to benchmark isospin-symmetry breaking corrections in 74Rb ATOMIC MASSES 74Ga, 74,75,76,85,87Rb; measured cyclotron frequency ratios of Rb isotopes in q=8-12 charge states relative to that of 85Rb using TITAN at TRIUMF-ISAC facility; deduced mass excesses and compared to previous experimental data. RADIOACTIVITY 74Rb(EC); deduced Q value and logft using mass excess from current and previous studies. Systematics of superallowed β decays of 42Sc, 46V, 50Mn, 54Co, 62Ga, 74Rb. Discussed test of the isospin-symmetry correction term δC. NUCLEAR REACTIONS Nb(p, X)74Rb/75Rb/76Rb/78Rb/74Ga, E=500 MeV; measured yields, TOF ion-cyclotron resonances for highly-charged Rb isotopes, TOF of ions with reference to highly-charged 85Rb isotope using TITAN at TRIUMF-ISAC facility.
doi: 10.1103/PhysRevC.91.045504
2015RO12 Phys.Rev. C 92, 014305 (2015) D.M.Rossi, K.Minamisono, H.B.Asberry, G.Bollen, B.A.Brown, K.Cooper, B.Isherwood, P.F.Mantica, A.Miller, D.J.Morrissey, R.Ringle, J.A.Rodriguez, C.A.Ryder, A.Smith, R.Strum, C.Sumithrarachchi Charge radii of neutron-deficient 36K and 37K ATOMIC PHYSICS 36,37K; measured hyperfine spectra using optical pumping and subsequent β-decay asymmetry detection at the BECOLA facility at NSCL-MSU facility; deduced atomic rate equations from resonance spectra, mean-square charge radii with reference to 39K. 36,37K radioactive beams produced in the fragmentation of 140 MeV/nucleon 40Ca ions with Be target, and separated by using A1900 fragment separator at NSCL-MSU. Comparison with Skyrme EDF and shell-model calculations, and with measured values of other K isotopes. Discussed absence of shell-closure at N=20 in the K isotopic chain due to a balance between the monopole and the quadrupole proton-core polarizations.
doi: 10.1103/PhysRevC.92.014305
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
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
2013BR16 Eur.Phys.J. A 49, 142 (2013) T.Brunner, A.Lapierre, C.Andreoiu, M.Brodeur, P.Delheij, S.Ettenauer, D.Frekers, A.T.Gallant, R.Gernhauser, A.Grossheim, R.Krucken, A.Lennarz, D.Lunney, D.Mucher, R.Ringle, M.C.Simon, V.V.Simon, S.K.L.Sjue, K.Zuber, J.Dilling Trapped-ion decay spectroscopy towards the determination of ground-state components of double-beta decay matrix elements RADIOACTIVITY 124,125,126Cs(EC), (β+), (IT); measured Eγ, Iγ, X-ray. Method test experiment for possible determination of 2β matrix elements.
doi: 10.1140/epja/i2013-13142-4
2013BU12 Phys.Rev. C 88, 022501 (2013) S.Bustabad, G.Bollen, M.Brodeur, D.L.Lincoln, S.J.Novario, M.Redshaw, R.Ringle, S.Schwarz, A.A.Valverde First direct determination of the 48Ca double-β decay Q value ATOMIC MASSES 48Ca, 48Ti; measured time-of-flight, cyclotron resonance frequencies ratios using LEBIT Penning-trap mass spectrometer at NSCL, MSU facility; deduced Q value for double beta decay of 48Ca. Comparison with ISOLTRAP measurements, and with AME-12. RADIOACTIVITY 48Ca(2β-); measured Q value for double β decay using LEBIT Penning-trap spectrometer; deduced phase factors for 2νββ and 0νββ decay modes.
doi: 10.1103/PhysRevC.88.022501
2013BU17 Phys.Rev. C 88, 035502 (2013) S.Bustabad, G.Bollen, M.Brodeur, D.L.Lincoln, S.J.Novario, M.Redshaw, R.Ringle, S.Schwarz Examination of the possible enhancement of neutrinoless double-electron capture in 78Kr ATOMIC MASSES 78Se, 78Kr; measured cyclotron frequency ratios using LEBIT Penning-trap spectrometer at NSCL-MSU facility; deduced Q value for 2ϵ decay mode. Comparison with AME-12. RADIOACTIVITY 78Kr(2EC); measured Q value using LEBIT system at NSCL-MSU facility; deduced resonance parameter and enhancement factor, exclusion of excited states in 78Se for resonantly enhanced 0νECEC mode.
doi: 10.1103/PhysRevC.88.035502
2013LI01 Phys.Rev.Lett. 110, 012501 (2013) D.L.Lincoln, J.D.Holt, G.Bollen, M.Brodeur, S.Bustabad, J.Engel, S.J.Novario, M.Redshaw, R.Ringle, S.Schwarz First Direct Double-β Decay Q-Value Measurement of 82Se in Support of Understanding the Nature of the Neutrino ATOMIC MASSES 82Kr, 82Se; measured time-of-flight cyclotron resonance , cyclotron resonance frequency; deduced Q-value. Penning trap measurement.
doi: 10.1103/PhysRevLett.110.012501
2012BR03 Phys.Rev.Lett. 108, 052504 (2012) M.Brodeur, T.Brunner, C.Champagne, S.Ettenauer, M.J.Smith, A.Lapierre, R.Ringle, V.L.Ryjkov, S.Bacca, P.Delheij, G.W.F.Drake, D.Lunney, A.Schwenk, J.Dilling First Direct Mass Measurement of the Two-Neutron Halo Nucleus 6He and Improved Mass for the Four-Neutron Halo 8He ATOMIC MASSES 6,8He; measured TOF resonance spectra; deduced isotopic shifts, charge radii, masses. Comparison with experimental and theoretical data.
doi: 10.1103/PhysRevLett.108.052504
2012BR07 Phys.Rev.Lett. 108, 212501 (2012) M.Brodeur, T.Brunner, S.Ettenauer, A.Lapierre, R.Ringle, B.A.Brown, D.Lunney, J.Dilling Elucidation of the Anomalous A=9 Isospin Quartet Behavior NUCLEAR STRUCTURE 9Li, 9Be, 9B, 9C; analyzed available data; calculated energy levels, J, π; deduced isospin mixing, anomalous isobaric mass multiplet equation behavior. Comparison with available data.
doi: 10.1103/PhysRevLett.108.212501
2012GA15 Phys.Rev. C 85, 044311 (2012) A.T.Gallant, M.Brodeur, T.Brunner, U.Chowdhury, S.Ettenauer, V.V.Simon, E.Mane, M.C.Simon, C.Andreoiu, P.Delheij, G.Gwinner, M.R.Pearson, R.Ringle, J.Dilling Highly charged ions in Penning traps: A new tool for resolving low-lying isomeric states ATOMIC MASSES 78,78mRb; measured time-of-flight spectra, frequency ratios relative to 85Rb using TRIUMF-TITAN facility; deduced mass excess of ground state and isomer in 78Rb. Comparison with AME-2003 and ENSDF.
doi: 10.1103/PhysRevC.85.044311
2012LA05 Phys.Rev. C 85, 024317 (2012) A.Lapierre, M.Brodeur, T.Brunner, S.Ettenauer, P.Finlay, A.T.Gallant, V.V.Simon, P.Delheij, D.Lunney, R.Ringle, H.Savajols, J.Dilling Penning-trap mass measurements of the neutron-rich K and Ca isotopes: Resurgence of the N=28 shell strength ATOMIC MASSES 44,47,48,49,50K, 49,50Ca; measured TOF-ICR resonance curves, frequency ratios; deduced mass excesses, S(2n). TITAN Penning trap spectrometer at TRIUMF-ISAC facility. Comparison with 2003 AME. Z=16-23, N=24-37; systematics of S(2n) values. Z=16-30, N=28; N=18-30, Z=19, 20; systematics of neutron shell gaps and comparison with model calculations. NUCLEAR REACTIONS Ta(p, X)44K/47K/48K/49K/50K/49Ca/50Ca, E=500 MeV; measured masses using time-of-flight ion cyclotron resonance (TOF-ICR) technique using TITAN at TRIUMF-ISAC facility.
doi: 10.1103/PhysRevC.85.024317
2012RE17 Phys.Rev. C 86, 041306 (2012) M.Redshaw, G.Bollen, M.Brodeur, S.Bustabad, D.L.Lincoln, S.J.Novario, R.Ringle, S.Schwarz Atomic mass and double-β-decay Q value of 48Ca ATOMIC MASSES 48Ca; measured time of flight, cyclotron resonance frequency using LEBIT Penning trap mass spectrometer at NSCL facility; deduced atomic mass, mass excess, Q value for ββ decay. Comparison with previous experimental studies, and with mass evaluations.
doi: 10.1103/PhysRevC.86.041306
2011BR13 Hyperfine Interactions 199, 191 (2011) T.Brunner, M.Brodeur, P.Delheij, S.Ettenauer, D.Frekers, A.T.Gallant, R.Krucken, A.Lapierre, D.Lunney, R.Ringle, V.V.Simon, J.Dilling In-trap decay spectroscopy for 2νββ decay experiments RADIOACTIVITY 124,126Cs(EC); measured Eγ, Iγ, X-rays, Eβ, Iβ; deduced possibility of electron capture branching ratio measurement of $^100$Tc. Penning trap.
doi: 10.1007/s10751-011-0313-9
2011ET01 Phys.Rev.Lett. 107, 272501 (2011) S.Ettenauer, M.C.Simon, A.T.Gallant, T.Brunner, U.Chowdhury, V.V.Simon, M.Brodeur, A.Chaudhuri, E.Mane, C.Andreoiu, G.Audi, J.R.C.Lopez-Urrutia, P.Delheij, G.Gwinner, A.Lapierre, D.Lunney, M.R.Pearson, R.Ringle, J.Ullrich, J.Dilling First Use of High Charge States for Mass Measurements of Short-Lived Nuclides in a Penning Trap ATOMIC MASSES 74,75,76Rb, 74Ga; measured TOF ion-cyclotron resonances; deduced masses. Penning trap measurements, comparison with mass evaluation.
doi: 10.1103/PhysRevLett.107.272501
2011KW02 J.Phys.:Conf.Ser. 312, 092035 (2011) A.A.Kwiatkowski, B.R.Barquest, M.Block, G.Bollen, C.M.Campbell, R.Ferrer, D.L.Lincoln, D.J.Morrissey, G.K.Pang, M.Redshaw, R.Ringle, S.Schwarz, J.Savory High precision Penning trap mass spectrometry of rare isotopes produced by projectile fragmentation ATOMIC MASSES 63,64,65,66,67,68Fe, 64,65,66,67,68,69Co; measured mass, 2n separation energies using Penning trap radiofrequency. Compared with AME03, other data.
doi: 10.1088/1742-6596/312/9/092035
2010ET01 Phys.Rev. C 81, 024314 (2010) S.Ettenauer, M.Brodeur, T.Brunner, A.T.Gallant, A.Lapierre, R.Ringle, M.R.Pearson, P.Delheij, J.Lassen, D.Lunney, J.Dilling Precision ground state mass of 12Be and an isobaric multiplet mass equation (IMME) extrapolation for 2+ and 02++ states in the T=2, A=12 multiplet ATOMIC MASSES 12Be; measured mass excess using Penning trap mass spectrometer TITAN at TRIUMF. Comparison with previous measurements and evaluations. Analyzed IMME for the lowest lying isospin T=2 multiplet in the A=12 system.
doi: 10.1103/PhysRevC.81.024314
2010FE01 Phys.Rev. C 81, 044318 (2010) R.Ferrer, M.Block, C.Bachelet, B.R.Barquest, G.Bollen, C.M.Campbell, M.Facina, C.M.Folden III, C.Guenaut, A.A.Kwiatkowski, D.L.Lincoln, D.J.Morrissey, G.K.Pang, A.M.Prinke, R.Ringle, J.Savory, P.Schury, S.Schwarz Penning trap mass spectrometry of neutron-rich Fe and Co isotopes around N=40 with the LEBIT mass spectrometer ATOMIC MASSES 63,64,65,65m,66Fe, 64,65,66,67,67mCo; measured cyclotron resonance frequencies and mass excesses using LEBIT Penning-trap mass spectrometer. Comparison with AME-2003 evaluation. 61,63,65,67Fe; systematics of low-lying levels. Z=24-31, N=35-44; systematics of two-neutron separation energies.
doi: 10.1103/PhysRevC.81.044318
2009BR10 Phys.Rev. C 80, 044318 (2009) M.Brodeur, T.Brunner, C.Champagne, S.Ettenauer, M.Smith, A.Lapierre, R.Ringle, V.L.Ryjkov, G.Audi, P.Delheij, D.Lunney, J.Dilling New mass measurement of 6Li and ppb-level systematic studies of the Penning trap mass spectrometer TITAN ATOMIC MASSES 6,7Li; measured frequency ratio using the TITAN Penning trap mass spectrometer at ISAC-TRIUMF facility. 6Li; deduced mass. Comparisons with previous measurements and AME-2003 evaluation.
doi: 10.1103/PhysRevC.80.044318
2009RI03 Phys.Lett. B 675, 170 (2009) R.Ringle, M.Brodeur, T.Brunner, S.Ettenauer, M.Smith, A.Lapierre, V.L.Ryjkov, P.Delheij, G.W.F.Drake, J.Lassen, D.Lunney, J.Dilling High-precision Penning trap mass measurements of 9, 10Be and the one-neutron halo nuclide 11Be ATOMIC MASSES 9,10,11Be [from Rb, Sr, Ta(p, X), E=500 MeV]; measured masses using the TITAN Penning trap mass spectrometer at TRIUMF. 11Be; deduced single-neutron separation energy. Comparison with AME2003.
doi: 10.1016/j.physletb.2009.04.014
2009RI12 Phys.Rev. C 80, 064321 (2009) R.Ringle, C.Bachelet, M.Block, G.Bollen, M.Facina, C.M.Folden III, C.Guenaut, A.A.Kwiatkowski, D.J.Morrissey, G.K.Pang, A.M.Prinke, J.Savory, P.Schury, S.Schwarz, C.S.Sumithrarachchi High-precision Penning trap mass measurements of neutron-rich sulfur isotopes at the N=28 shell closure ATOMIC MASSES 40,41,42,43,44S; measured precise mass excesses using LEBIT Penning trap mass spectrometer. Comparison with other recent mass measurements. Systematics of S(2n) values for N=24-30, Z=15-18 nuclides.
doi: 10.1103/PhysRevC.80.064321
2009SA12 Phys.Rev.Lett. 102, 132501 (2009) J.Savory, P.Schury, C.Bachelet, M.Block, G.Bollen, M.Facina, C.M.Folden III, C.Guenaut, E.Kwan, A.A.Kwiatkowski, D.J.Morrissey, G.K.Pang, A.Prinke, R.Ringle, H.Schatz, S.Schwarz, C.S.Sumithrarachchi rp Process and Masses of N ∼ Z ∼ 34 Nuclides ATOMIC MASSES 68,70Se, 70,71Br; measured frequencies using penning trap; deduced masses. 70,71Kr predicted masses.
doi: 10.1103/PhysRevLett.102.132501
2009SC29 Eur.Phys.J. A 42, 323 (2009) S.Schwarz, M.Block, G.Bollen, C.M.Campbell, M.Facina, R.Ferrer, C.M.Folden III, A.A.Kwiatkowski, D.J.Morrissey, G.K.Pang, A.M.Prinke, R.J.Ringle, J.Savory, P.H.Schury Precision Penning trap mass measurements of rare isotopes produced by projectile fragmentation ATOMIC MASSES 32Si, 32P, 32S, 32Cl, 32Ar; analyzed masses from Penning trap measurements. Comparison with Isobaric Multiplet Mass Equation calculations.
doi: 10.1140/epja/i2009-10808-4
2008BL05 Phys.Rev.Lett. 100, 132501 (2008); Erratum Phys.Rev.Lett. 101, 059901 (2008) M.Block, C.Bachelet, G.Bollen, M.Facina, C.M.Folden III, C.Guenaut, A.A.Kwiatkowski, D.J.Morrissey, G.K.Pang, A.Prinke, R.Ringle, J.Savory, P.Schury, S.Schwarz Discovery of a Nuclear Isomer in 65Fe with Penning Trap Mass Spectrometry ATOMIC MASSES 63,64,65Fe, 64,65,66Co; measured and evaluated masses using Penning trap mass spectrometer, isotopes produced by projectile fragmentation with LEBIT at NSCL. 65mFe; deduced level energy, T1/2 for isomeric state.
doi: 10.1103/PhysRevLett.100.132501
2008RY03 Phys.Rev.Lett. 101, 012501 (2008) V.L.Ryjkov, M.Brodeur, T.Brunner, M.Smith, R.Ringle, A.Lapierre, F.Ames, P.Bricault, M.Dombsky, P.Delheij, D.Lunney, M.R.Pearson, J.Dilling Direct Mass Measurement of the Four-Neutron Halo Nuclide 8He ATOMIC MASSES 8He; measured mass using a penning trap.
doi: 10.1103/PhysRevLett.101.012501
2008SM03 Phys.Rev.Lett. 101, 202501 (2008) M.Smith, M.Brodeur, T.Brunner, S.Ettenauer, A.Lapierre, R.Ringle, V.L.Ryjkov, F.Ames, P.Bricault, G.W.F.Drake, P.Delheij, D.Lunney, F.Sarazin, J.Dilling First Penning-Trap Mass Measurement of the Exotic Halo Nucleus 11Li ATOMIC MASSES 11Li; measured mass using a penning trap mass spectrometer.
doi: 10.1103/PhysRevLett.101.202501
2007BO50 Eur.Phys.J. Special Topics 150, 337 (2007) G.Bollen, C.Bachelet, M.Block, D.A.Davies, M.Facina, C.M.Folden, C.Guenaut, J.Huikari, E.Kwan, A.Kwiatowski, D.J.Morrissey, G.Pang, A.Prinke, R.Ringle, J.Savory, P.Schury, S.Schwarz, C.Sumithrarachchi, T.Sun Penning trap mass measurements of rare isotopes produced by projectile fragmentation with LEBIT at NSCL ATOMIC MASSES 80As, 81Se; measured masses a penning trap mass spectrometer.
doi: 10.1140/epjst/e2007-00340-3
2007RI08 Phys.Rev. C 75, 055503 (2007) R.Ringle, T.Sun, G.Bollen, D.Davies, M.Facina, J.Huikari, E.Kwan, D.J.Morrissey, A.Prinke, J.Savory, P.Schury, S.Schwarz, C.S.Sumithrarachchi High-precision Penning trap mass measurements of 37, 38Ca and their contributions to conserved vector current and isobaric mass multiplet equation ATOMIC MASSES 37,38Ca; measured masses using penning trap mass spectrometer. Deduced mass excess and implications on CVC and IMME.
doi: 10.1103/PhysRevC.75.055503
2007SC24 Phys.Rev. C 75, 055801 (2007); Erratum Phys.Rev. C 80, 029905 (2009) P.Schury, C.Bachelet, M.Block, G.Bollen, D.A.Davies, M.Facina, C.M.Folden III, C.Guenaut, J.Huikari, E.Kwan, A.Kwiatkowski, D.J.Morrissey, R.Ringle, G.K.Pang, A.Prinke, J.Savory, H.Schatz, S.Schwarz, C.S.Sumithrarachchi, T.Sun Precision mass measurements of rare isotopes near N = Z = 33 produced by fast beam fragmentation ATOMIC MASSES 63,64Ga, 64,65,66Ge, 66,67,68As, 69Se; measured masses using penning trap mass spectrometer. Astrophysical implications discussed.
doi: 10.1103/PhysRevC.75.055801
2006BO11 Phys.Rev.Lett. 96, 152501 (2006) G.Bollen, D.Davies, M.Facina, J.Huikari, E.Kwan, P.A.Lofy, D.J.Morrissey, A.Prinke, R.Ringle, J.Savory, P.Schury, S.Schwarz, C.Sumithrarachchi, T.Sun, L.Weissman Experiments with Thermalized Rare Isotope Beams from Projectile Fragmentation: A Precision Mass Measurement of the Superallowed β Emitter 38Ca ATOMIC MASSES 38Ca; measured mass. Penning trap mass spectrometer.
doi: 10.1103/PhysRevLett.96.152501
2006RI15 Int.J. Mass Spectrom. 251, 300 (2006) R.Ringle, P.Schury, T.Sun, G.Bollen, D.Davies, J.Huikari, E.Kwan, D.J.Morrissey, A.Prinke, J.Savory, S.Schwarz, C.Sumithrarachchi Precision mass measurements with LEBIT at MSU ATOMIC MASSES 78,80,82,83,84Kr; measured masses using the LEBIT Penning trap mass spectrometer. Comparison with 2003 mass evaluation.
doi: 10.1016/j.ijms.2006.02.011
2005RI18 Eur.Phys.J. A 25, Supplement 1, 59 (2005) R.Ringle, G.Bollen, D.Lawton, P.Schury, S.Schwarz, T.Sun The LEBIT 9.4 T Penning trap system
doi: 10.1140/epjad/i2005-06-132-y
2005SC26 Eur.Phys.J. A 25, Supplement 1, 51 (2005) P.Schury, G.Bollen, D.A.Davies, A.Doemer, D.Lawton, D.J.Morrissey, J.Ottarson, A.Prinke, R.Ringle, T.Sun, S.Schwarz, L.Weissman Precision experiments with rare isotopes with LEBIT at MSU ATOMIC MASSES 78,80,82,83,84,86Kr; measured masses. Penning trap mass spectrometer.
doi: 10.1140/epjad/i2005-06-131-0
2005SU23 Eur.Phys.J. A 25, Supplement 1, 61 (2005) T.Sun, S.Schwarz, G.Bollen, D.Lawton, R.Ringle, P.Schury Commissioning of the ion beam buncher and cooler for LEBIT
doi: 10.1140/epjad/i2005-06-126-9
2004BO44 Nucl.Phys. A746, 597c (2004) G.Bollen, S.Schwarz, D.Davies, P.Lofy, D.J.Morrissey, R.Ringle, P.Schury, T.Sun, L.Weissman Towards precision experiments with LEBIT at NSCL/MSU
doi: 10.1016/j.nuclphysa.2004.09.096
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