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NSR database version of April 25, 2024.

Search: Author = K.G.Leach

Found 82 matches.

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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
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2023JA05      Nucl.Phys. A1033, 122636 (2023)

A.Jacobs, C.Andreoiu, J.Bergmann, T.Brunner, T.Dickel, I.Dillmann, E.Dunling, J.Flowerdew, L.Graham, G.Gwinner, Z.Hockenbery, W.J.Huang, B.Kootte, Y.Lan, K.G.Leach, E.Leistenschneider, D.Lunney, E.M.Lykiardopoulou, V.Monier, I.Mukul, S.F.Paul, W.R.Plass, M.P.Reiter, C.Scheidenberger, R.Thompson, J.L.Tracy, C.Will, M.E.Wieser, J.Dilling, A.A.Kwiatkowski

Improved high-precision mass measurements of mid-shell neon isotopes

ATOMIC MASSES 24,25,26Ne; measured radioactive ion beam (RIB) TOF spectra; deduced mass excess. Comparison with AME2020. TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN), the Multi-Reflection Time-of-Flight Mass-Spectrometer (MR-TOF-MS).

doi: 10.1016/j.nuclphysa.2023.122636
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2023KE01      Phys.Rev. C 107, 015504 (2023)

D.K.Keblbeck, R.Bhandari, N.D.Gamage, M.H.Gamage, K.G.Leach, X.Mougeot, M.Redshaw

Updated evaluation of potential ultralow Q-value β-decay candidates

RADIOACTIVITY 47Ca, 74,77As, 98Tc, 124,127Sb, 131I, 133Xe, 135,136Cs, 140Ba, 140La, 148,151Pm, 154,155,156Eu, 161Tb, 166Dy, 166Er, 171Tm, 182,183Ta, 186,189Re, 188W, 193Os, 199Au(β-); 56Co, 57Ni, 73,74As, 75Se, 77Br, 81Kr, 96,97Tc, 101Rh, 111In, 113Sn, 124I, 129,132Cs, 146Pm, 146,147Eu, 156,157Tb, 159Dy, 167Tm, 169Yb, 169,173,174Lu, 175Hf, 177Ta, 183,184Re, 190Ir, 194,195Hg, 195Au, 200Tl, 205Bi(EC); 48V, 56Ni, 79Kr, 83Sr, 105Ag, 144,146Pm, 145,146,148Eu, 153Tb, 169,171Lu, 188Ir(β+); analyzed and evaluated potential ultraslow Q-values in β-, ϵ and β+ decays. 136Cs, 155,156Eu, 188W(β-); 56Co, 81Kr, 97Tc, 146Pm, 157Tb, 173Lu, 175Hf, 183Re, 195Au(EC); 105Ag, 144,146Pm, 148Eu(β+); deduced most promising candidates for ultralow Q value (1 keV or less) in allowed and first-forbidden β decays. Relevance to neutrino mass determination and as a testing ground for atomic interference effects in the nuclear β-decay process.

doi: 10.1103/PhysRevC.107.015504
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2023RE09      Phys.Rev.Lett. 131, 052501 (2023)

B.M.Rebeiro, S.Triambak, P.E.Garrett, G.C.Ball, B.A.Brown, J.Menendez, B.Romeo, P.Adsley, B.G.Lenardo, R.Lindsay, V.Bildstein, C.Burbadge, R.Coleman, A.Diaz Varela, R.Dubey, T.Faestermann, R.Hertenberger, M.Kamil, K.G.Leach, C.Natzke, J.C.Nzobadila Ondze, A.Radich, E.Rand, H.-F.Wirth

138Ba(d, α) Study of States in 136Cs: Implications for New Physics Searches with Xenon Detectors

NUCLEAR REACTIONS 138Ba(d, α), E=22 MeV; measured reaction products, Eα, Iα; deduced energy levels, J, π, σ(θ), partial level scheme. Comparison with the shell-model results obtained with the GCN5082, SN100PN, and QX effective interactions. The Maier-Leibnitz Laboratorium in Garching, Germany.

doi: 10.1103/PhysRevLett.131.052501
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2023RO02      Phys.Rev.Lett. 130, 122502 (2023)

M.Rocchini, P.E.Garrett, M.Zielinska, S.M.Lenzi, D.D.Dao, F.Nowacki, V.Bildstein, A.D.MacLean, B.Olaizola, Z.T.Ahmed, C.Andreoiu, A.Babu, G.C.Ball, S.S.Bhattacharjee, H.Bidaman, C.Cheng, R.Coleman, I.Dillmann, A.B.Garnsworthy, S.Gillespie, C.J.Griffin, G.F.Grinyer, G.Hackman, M.Hanley, A.Illana, S.Jones, A.T.Laffoley, K.G.Leach, R.S.Lubna, J.McAfee, C.Natzke, S.Pannu, C.Paxman, C.Porzio, A.J.Radich, M.M.Rajabali, F.Sarazin, K.Schwarz, S.Shadrick, S.Sharma, J.Suh, C.E.Svensson, D.Yates, T.Zidar

First Evidence of Axial Shape Asymmetry and Configuration Coexistence in 74Zn: Suggestion for a Northern Extension of the N=40 Island of Inversion

RADIOACTIVITY 74Cu(β-) [from Ta(p, X)74Cu, E=490 MeV]; measured decay products, Eγ, Iγ; deduced γ-ray energies and relative intensities, energy levels, J, π, relative B(E2), ground state enhanced axial shape asymmetry (triaxiality). Comparison with available data, with shell-model calculations (SM) and shell-model calculations in a deformed Hartree-Fock basis (DNO-SM). The GRIFFIN γ-ray spectrometer, TRIUMF-ISAC1 facility.

doi: 10.1103/PhysRevLett.130.122502
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2022BU16      Phys.Rev.Lett. 128, 202502 (2022)

M.T.Burkey, G.Savard, A.T.Gallant, N.D.Scielzo, J.A.Clark, T.Y.Hirsh, L.Varriano, G.H.Sargsyan, K.D.Launey, M.Brodeur, D.P.Burdette, E.Heckmaier, K.Joerres, J.W.Klimes, K.Kolos, A.Laminack, K.G.Leach, A.F.Levand, B.Longfellow, B.Maass, S.T.Marley, G.E.Morgan, P.Mueller, R.Orford, S.W.Padgett, A.Perez Galvan, J.R.Pierce, D.Ray, R.Segel, K.Siegl, K.S.Sharma, B.S.Wang

Improved Limit on Tensor Currents in the Weak Interaction from 8Li β Decay

RADIOACTIVITY 8Li(β-); measured decay products, Eβ, Iβ; deduced tensor currents in the low-energy regime by examining the β-ν correlation of trapped 8Li ions with the Beta-decay Paul Trap. Comparison with the standard model prediction.

doi: 10.1103/PhysRevLett.128.202502
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2022SH26      Eur.Phys.J. A 58, 83 (2022)

S.Sharma, G.F.Grinyer, G.C.Ball, J.R.Leslie, C.E.Svensson, F.A.Ali, C.Andreoiu, N.Bernier, S.S.Bhattacharjee, V.Bildstein, C.Burbadge, R.Caballero-Folch, R.Coleman, A.Diaz Varela, M.R.Dunlop, R.Dunlop, A.B.Garnsworthy, E.Gyabeng Fuakye, G.M.Huber, B.Jigmeddorj, K.Kapoor, A.T.Laffoley, K.G.Leach, J.Long, A.D.MacLean, C.R.Natzke, B.Olaizola, A.J.Radich, N.Saei, J.T.Smallcombe, A.Talebitaher, K.Whitmore, T.Zidar

High-precision half-life determination of 14O via direct β counting

RADIOACTIVITY 14O(β+) [from Si(p, X), E=480 MeV]; measured decay products, Eβ, Iβ; deduced log ft, T1/2, the new world average based on several measurements. The Isotope Separator and Accelerator (ISAC) facility at TRIUMF.

doi: 10.1140/epja/s10050-022-00730-w
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2021AV04      Phys.Rev. D 104, 112007 (2021)

A.Avasthi, T.W.Bowyer, C.Bray, T.Brunner, N.Catarineu, E.Church, R.Guenette, S.J.Haselschwardt, J.C.Hayes, M.Heffner, S.A.Hertel, P.H.Humble, A.Jamil, S.H.Kim, R.F.Lang, K.G.Leach, B.G.Lenardo, W.H.Lippincott, A.Marino, D.N.McKinsey, E.H.Miller, D.C.Moore, B.Mong, B.Monreal, M.E.Monzani, I.Olcina, J.L.Orrell, S.Pang, A.Pocar, P.C.Rowson, R.Saldanha, S.Sangiorgio, C.Stanford, A.Visser

Kiloton-scale xenon detectors for neutrinoless double beta decay and other new physics searches

RADIOACTIVITY 134,136Xe(2β-); analyzed available data; deduced neutrinoless mode T1/2 limits.

doi: 10.1103/PhysRevD.104.112007
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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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2021KA45      Phys.Rev. C 104, L061303 (2021)

M.Kamil, S.Triambak, A.Magilligan, A.Garcia, B.A.Brown, P.Adsley, V.Bildstein, C.Burbadge, A.Diaz Varela, T.Faestermann, P.E.Garrett, R.Hertenberger, N.Y.Kheswa, K.G.Leach, R.Lindsay, D.J.Marin-Lambarri, F.Ghazi Moradi, N.J.Mukwevho, R.Neveling, J.C.Nzobadila Ondze, P.Papka, L.Pellegri, V.Pesudo, B.M.Rebeiro, M.Scheck, F.D.Smit, H.-F.Wirth

Isospin mixing and the cubic isobaric multiplet mass equation in the lowest T=2, A=32 quintet

ATOMIC MASSES 32Ar, 32Cl, 32S, 32P, 32Si; analyzed experimental masses by a cubic fit to the isobaric multiplet mass equation (IMME) for the lowest isospin T=2 quintet in A=32 nuclei; investigated isospin mixing by combining high-resolution experimental data for proton spectrum from 32Ar β-delayed proton decay, and from triton spectrum in 32S(3He, t) reaction with the state-of-the-art shell-model calculations; evaluated isospin mixing matrix elements; extracted cubic and quartic coefficients of the IMME; deduced that isospin mixing with nonanalog T=1 states contributes to the IMME breakdown. 32Ar; analyzed experimental β-delayed proton spectrum by R-matrix fit; calculated proton emission amplitudes from states in 32Cl.

doi: 10.1103/PhysRevC.104.L061303
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2021MA46      Phys.Rev. C 104, 014324 (2021)

M.S.Martin, S.R.Stroberg, J.D.Holt, K.G.Leach

Testing isospin symmetry breaking in ab initio nuclear theory

NUCLEAR STRUCTURE A=10, 14, 18, 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 70, 74; calculated coefficients of the isobaric multiplet mass equation (IMME) using the valence-space in-medium similarity renormalization group (VS-IMSRG) method, and two different Hamiltonians from chiral effective field theory. Comparison with experimental results for all T=1 isobaric analog triplets of relevance to superallowed β decay.

doi: 10.1103/PhysRevC.104.014324
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2021RE11      Phys.Rev. C 104, 034309 (2021)

B.M.Rebeiro, S.Triambak, P.E.Garrett, B.A.Brown, G.C.Ball, R.Lindsay, P.Adsley, V.Bildstein, C.Burbadge, A.Diaz-Varela, T.Faestermann, R.Hertenberger, B.Jigmeddorj, M.Kamil, K.G.Leach, P.Z.Mabika, J.C.Nzobadila Ondze, J.N.Orce, A.Radich, H.-F.Wirth

Spectroscopy of states in 136Ba using the 138Ba (p, t) reaction

NUCLEAR REACTIONS 138Ba(p, t), E=23 MeV; measured outgoing triton spectra, E(t), I(t), differential σ(θ) distributions using Q3D magnetic spectrometer at MLL-Munich tandem accelerator. DWBA analysis of σ(θ) data using DWUCK4 code using global proton optical model parameters. 136Ba; deduced levels, J, π. Comparison of measured level densities with shell model calculations, and with previous experimental data in ENSDF database. Discussed importance of 136Ba nuclear structure in the context of 136Xe double beta decay.

doi: 10.1103/PhysRevC.104.034309
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2532. Data from this article have been entered in the XUNDL database. For more information, click here.


2020CA01      Phys.Rev. C 101, 014313 (2020)

L.Capponi, J.F.Smith, P.Ruotsalainen, C.Scholey, P.Rahkila, L.Bianco, A.J.Boston, H.C.Boston, D.M.Cullen, X.Derkx, M.C.Drummond, T.Grahn, P.T.Greenlees, L.Grocutt, B.Hadinia, U.Jakobsson, D.T.Joss, R.Julin, S.Juutinen, M.Labiche, M.Leino, K.G.Leach, C.McPeake, K.F.Mulholland, P.Nieminen, D.O'Donnell, E.S.Paul, P.Peura, M.Sandzelius, J.Saren, B.Saygi, J.Sorri, S.Stolze, A.Thornthwaite, M.J.Taylor, J.Uusitalo

Delayed or absent π(h11/2)2 alignment in 111Xe

NUCLEAR REACTIONS 58Ni(58Ni, nα)111Xe, E=210 MeV; measured Eα, Eγ, Iγ, (evaporation residue)γ-coin, recoil-tagged γγ-coin, αα-correlations using the RITU separator, GREAT spectrometer, planar and Clover HPGe detectors at the K130 cyclotron of the University of Jyvaskyla. 111Xe; deduced levels, J, π, h11/2 band and its alignment, deformation parameters from total Routhian surface (TRS) calculations, configuration. Comparison with shell-model calculations. Systematics of h11/2 bands in 111,113,115,117,119,121Xe.

RADIOACTIVITY 111Xe(α)[from 58Ni(58Ni, nα), E=210 MeV]; 107Te(α)[from 111Xe α decay]; measured Eα, Iα, αα correlations using recoil-decay tagging method.

doi: 10.1103/PhysRevC.101.014313
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2020FR07      Phys.Rev.Lett. 125, 032701 (2020)

S.Fretwell, K.G.Leach, C.Bray, G.B.Kim, J.Dilling, A.Lennarz, X.Mougeot, F.Ponce, C.Ruiz, J.Stackhouse, S.Friedrich

Direct Measurement of the 7Be L/K Capture Ratio in Ta-Based Superconducting Tunnel Junctions

RADIOACTIVITY 7Be(EC); measured decay products, phonons; deduced recoil spectra, L/K ratio.

doi: 10.1103/PhysRevLett.125.032701
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2020GA06      Acta Phys.Pol. B51, 799 (2020)

P.E.Garrett, L.Makhathini, R.A.Bark, T.r.rodriguez, S.Valbuena, V.Bildstein, T.D.Bucher, C.Burbadge, R.Dubey, T.Faestermann, R.Hertenberger, M.Kamil, E.A.Lawrie, K.G.Leach, A.D.MacLean, C.Malotana, C.Mehl, S.H.Mthembu, J.Mukwevho, C.Ngwetsheni, S.S.Ntshangase, J.Ondze, J.N.Orce, B.Rebeiro, B.Singh, S.Triambak, E.C.Vyfers, H-F.Wirth

Shape Coexistence in the Ru Isotopes; Multi-spectroscopic Study of 98Ru and Beyond-mean-field Calculations

doi: 10.5506/APhysPolB.51.799
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2020GA10      Phys.Rev. C 101, 044302 (2020)

P.E.Garrett, T.R.Rodriguez, A.Diaz Varela, K.L.Green, J.Bangay, A.Finlay, R.A.E.Austin, G.C.Ball, D.S.Bandyopadhyay, V.Bildstein, S.Colosimo, D.S.Cross, G.A.Demand, P.Finlay, A.B.Garnsworthy, G.F.Grinyer, G.Hackman, B.Jigmeddorj, J.Jolie, W.D.Kulp, K.G.Leach, A.C.Morton, J.N.Orce, C.J.Pearson, A.A.Phillips, A.J.Radich, E.T.Rand, M.A.Schumaker, C.E.Svensson, C.Sumithrarachchi, S.Triambak, N.Warr, J.Wong, J.L.Wood, S.W.Yates

Shape coexistence and multiparticle-multihole structures in 110, 112Cd

RADIOACTIVITY 110,112In(β+), (EC)[from Ta(p, X), E=500 MeV]; 112Ag(β-)[from Ta(p, X), E=500 MeV]; measured Eγ, Iγ, and γγ-coin using 8π HPGe detector array at TRIUMF-ISAC. 110,112Cd; deduced levels, J, π, branching ratios, B(E2), configurations. Comparison of experimental B(E2) values with beyond mean-field calculations. Discussed shape-coexisting intruder band and multiparticle-multihole proton excitations for the second, third and fourth excited 0+ levels of 110,112Cd.

NUCLEAR REACTIONS 110,112Cd(n, n'), E=2.1-3.4 MeV; analyzed earlier γ(θ) and DSAM data; deduced half-lives of excited states.

NUCLEAR STRUCTURE 110,112Cd; calculated levels, J, π, B(E2), collective wave function contours in the (β2, γ) plane for excited states using symmetry conserving configuration mixing method (SCCM), B(E2) by beyond mean-field method. Comparison with experimental data.

doi: 10.1103/PhysRevC.101.044302
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2020GA26      Phys.Lett. B 809, 135762 (2020)

P.E.Garrett, L.Makhathini, R.A.Bark, T.R.Rodriguez, S.Valbuena, V.Bildstein, T.D.Bucher, C.Burbadge, R.Dubey, T.Faestermann, R.Hertenberger, M.Kamil, E.A.Lawrie, K.G.Leach, A.D.MacLean, C.Mehl, S.H.Mthembu, N.J.Mukwevho, C.Ngwetsheni, S.S.Ntshangase, J.C.Nzobadila Ondze, J.N.Orce, B.Rebeiro, B.Singh, S.Triambak, E.C.Vyfers, H.-F.Wirth

Observation of the 0+2 and γ bands in 98Ru, and shape coexistence in the Ru isotopes

RADIOACTIVITY 98Rh(β+), (EC) [from 89Y(12C, 3n), E=47.5 MeV]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, branching, σ(θ), J, π, bands. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2020.135762
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2020GA27      Phys.Rev.Lett. 125, 172501 (2020)

F.H.Garcia, C.Andreoiu, G.C.Ball, A.Bell, A.B.Garnsworthy, F.Nowacki, C.M.Petrache, A.Poves, K.Whitmore, F.A.Ali, N.Bernier, S.S.Bhattacharjee, M.Bowry, R.J.Coleman, I.Dillmann, I.Djianto, A.M.Forney, M.Gascoine, G.Hackman, K.G.Leach, A.N.Murphy, C.R.Natzke, B.Olaizola, K.Ortner, E.E.Peters, M.M.Rajabali, K.Raymond, C.E.Svensson, R.Umashankar, J.Williams, D.Yates

Absence of Low-Energy Shape Coexistence in 80Ge: The Nonobservation of a Proposed Excited 0+2 Level at 639 keV

RADIOACTIVITY 80Ga(β-); measured decay products, Eγ, Iγ, Eβ, Iβ, γ-γ-coin.; deduced γ-ray energies and intensities, J, π, partial level scheme, lack of evidence for low-energy shape coexistence. Comparison with large-scale shell model calculations.

doi: 10.1103/PhysRevLett.125.172501
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2020LE06      J.Phys.(London) G47, 045113 (2020)

E.Leistenschneider, R.Klawitter, A.Lennarz, M.Alanssari, J.C.Bale, B.R.Barquest, U.Chowdhury, A.Finlay, A.T.Gallant, B.Kootte, D.Lascar, K.G.Leach, A.J.Mayer, D.Short, C.Andreoiu, G.Gwinner, M.E.Wieser, J.Dilling, A.A.Kwiatkowski

Diversifying beam species through decay and recapture ion trapping: a demonstrative experiment at TITAN-EBIT

RADIOACTIVITY 30Mg, 30Al(β-) [from U(p, X), E=480 MeV]; measured decay products, Eγ, Iγ; deduced γ-ray energies, population and charge-state evolutions and in-trap decay at TITAN-EBIT, identification of daughter species. TRIUMF's ISOL facility, the isotope separator and accelerator (ISAC).

ATOMIC MASSES 30Mg, 30Al; measured ToF-ICR resonance frequencies; deduced atomic mass excesses. Comparison with available data.

doi: 10.1088/1361-6471/ab6ee1
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2020MA59      Phys.Rev. C 102, 054325 (2020)

A.D.MacLean, A.T.Laffoley, C.E.Svensson, G.C.Ball, J.R.Leslie, C.Andreoiu, A.Babu, S.S.Bhattacharjee, H.Bidaman, V.Bildstein, C.Burbadge, M.Bowry, C.Cheng, D.S.Cross, A.Diaz Varela, I.Dillmann, M.R.Dunlop, R.Dunlop, L.J.Evitts, P.Finlay, S.Gillespie, A.B.Garnsworthy, P.E.Garrett, E.Gopaul, C.J.Griffin, G.F.Grinyer, G.Hackman, J.Henderson, B.Jigmeddorj, K.G.Leach, E.Kassanda, J.McAfee, M.Moukaddam, C.Natzke, S.Nittala, B.Olaizola, J.Park, C.Paxman, J.L.Pore, C.Porzio, A.J.Radich, P.Ruotsalainen, Y.Saito, S.Sharma, J.Smallcombe, J.K.Smith, R.Sultana, J.Turko, J.Williams, D.Yates, T.Zidar

High-precision branching ratio measurement and spin assignment implications for 62Ga superallowed β decay

RADIOACTIVITY 62Ga(β+), (EC); measured Eγ, Iγ, β+, β+γ- and βγγ-coin, γγ(θ) using GRIFFIN array of 16 Compton-suppressed HPGe clover detectors for γ rays, and SCEPTAR array of plastic scintillators for β particles at TRIUMF-ISAC facility. 62Zn; deduced levels, J, π, multipole mixing ratios, precise β branch for superallowed 0+ to 0+ transition, β feedings to excited 0+ and (1+) states, isospin-symmetry-breaking correction. Comparison with previous experimental results and implications for theoretical studies of isospin-symmetry-breaking correction calculations.

doi: 10.1103/PhysRevC.102.054325
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2020RE04      Phys.Rev. C 101, 025803 (2020)

M.P.Reiter, S.Ayet San Andres, S.Nikas, J.Lippuner, C.Andreoiu, C.Babcock, B.R.Barquest, J.Bollig, T.Brunner, T.Dickel, J.Dilling, I.Dillmann, E.Dunling, G.Gwinner, L.Graham, C.Hornung, R.Klawitter, B.Kootte, A.A.Kwiatkowski, Y.Lan, D.Lascar, K.G.Leach, E.Leistenschneider, G.Martinez-Pinedo, J.E.McKay, S.F.Paul, W.R.Plass, L.Roberts, H.Schatz, C.Scheidenberger, A.Sieverding, R.Steinbrugge, R.Thompson, M.E.Wieser, C.Will, D.Welch

Mass measurements of neutron-rich gallium isotopes refine production of nuclei of the first r-process abundance peak in neutron-star merger calculations

ATOMIC MASSES 80,81,82,83,84,85Ga; measured time-of-flight spectra and mass excesses using the Ion Guide Laser Ion Source (IG-LIS) and Multiple-Reflection Time-of-Flight Mass-Spectrometer and isobar separator (MR-TOF-MS) at TRIUMF-TITAN facility; deduced solar r-process abundances for A=70-140. Comparison with AME-2016 values. Systematics of experimental and theoretical S(2n) values for Z=30-33, N=46-57 isotopes.

doi: 10.1103/PhysRevC.101.025803
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2020RE12      Phys.Lett. B 809, 135702 (2020), Erratum Phys.Lett. B 820, 136532 (2021)

B.M.Rebeiro, S.Triambak, P.E.Garrett, B.A.Brown, G.C.Ball, R.Lindsay, P.Adsley, V.Bildstein, C.Burbadge, A.Diaz Varela, T.Faestermann, D.L.Fang, R.Hertenberger, M.Horoi, B.Jigmeddorj, M.Kamil, K.G.Leach, P.Z.Mabika, J.C.Nzobadila Ondze, J.N.Orce, H.-F.Wirth

Benchmarking 136Xe neutrinoless ββ decay matrix element calculations with the 138Ba(p, t) reaction

NUCLEAR REACTIONS 138Ba(p, t), (p, p), E=23 MeV; measured reaction products, Ep, Ip; deduced σ(θ), neutrinoless ββ decay matrix elements.

doi: 10.1016/j.physletb.2020.135702
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2020SM02      Phys.Rev. C 102, 054314 (2020)

J.K.Smith, A.B.Garnsworthy, J.L.Pore, C.Andreoiu, A.D.MacLean, A.Chester, Z.Beadle, G.C.Ball, P.C.Bender, V.Bildstein, R.Braid, A.Diaz Varela, R.Dunlop, L.J.Evitts, P.E.Garrett, G.Hackman, S.V.Ilyushkin, B.Jigmeddorj, K.Kuhn, A.T.Laffoley, K.G.Leach, D.Miller, W.J.Mills, W.Moore, M.Moukaddam, B.Olaizola, E.E.Peters, A.J.Radich, E.T.Rand, F.Sarazin, C.E.Svensson, S.J.Williams, S.W.Yates

Spectroscopic study of 47Ca from the β- decay of 47K

RADIOACTIVITY 47K(β-)[from U(p, X), E=500 MeV at the TRIUMF Cyclotron, followed by extraction of surface-ionized 47K ions, accelerated to 28 keV, passed through a high-resolution mass separator, and deposited on a mylar tape for counting]; measured Eγ, Iγ, Eβ, ce, γγ-coin, γγ(θ) using GRIFFIN array of 16 clover Ge detectors, plastic scintillators for β particles, and Si(Li) detectors for conversion electrons. 47Ca; deduced levels, J, π, multipolarities and mixing ratios, β feedings, logft, γ-branching ratios, B(GT). Comparison with previous results.

doi: 10.1103/PhysRevC.102.054314
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2019AY03      Phys.Rev.Lett. 123, 082501 (2019)

Y.Ayyad, B.Olaizola, W.Mittig, G.Potel, V.Zelevinsky, M.Horoi, S.Beceiro Novo, M.Alcorta, C.Andreoiu, T.Ahn, M.Anholm, L.Atar, A.Babu, D.Bazin, N.Bernier, S.S.Bhattacharjee, M.Bowry, R.Caballero-Folch, M.Cortesi, C.Dalitz, E.Dunling, A.B.Garnsworthy, M.Holl, B.Kootte, K.G.Leach, J.S.Randhawa, Y.Saito, C.Santamaria, P.Siuryte, C.E.Svensson, R.Umashankar, N.Watwood, D.Yates

Direct Observation of Proton Emission in 11Be

RADIOACTIVITY 11Be(β-p) [from U(p, X), E=480 MeV]; measured decay products, Eβ, Iβ, Ep, Ip; deduced level energy, resonance parameters, J, π. Comparison with available data.

doi: 10.1103/PhysRevLett.123.082501
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2019GA28      Phys.Rev.Lett. 123, 142502 (2019)

P.E.Garrett, T.R.Rodriguez, A.Diaz Varela, K.L.Green, J.Bangay, A.Finlay, R.A.E.Austin, G.C.Ball, D.S.Bandyopadhyay, V.Bildstein, S.Colosimo, D.S.Cross, G.A.Demand, P.Finlay, A.B.Garnsworthy, G.F.Grinyer, G.Hackman, B.Jigmeddorj, J.Jolie, W.D.Kulp, K.G.Leach, A.C.Morton, J.N.Orce, C.J.Pearson, A.A.Phillips, A.J.Radich, E.T.Rand, M.A.Schumaker, C.E.Svensson, C.Sumithrarachchi, S.Triambak, N.Warr, J.Wong, J.L.Wood, S.W.Yates

Multiple Shape Coexistence in 110, 112Cd

RADIOACTIVITY 110,112In(β+), (EC), 112Ag(β-); measured decay products, Eγ, Iγ; deduced γ-ray energies, weak decay branches from nonyrast states.

NUCLEAR REACTIONS 110,112Cd(n, n'), E not given; measured reaction products, Eγ, Iγ; deduced γ-ray energies, branching ratios and level T1/2, intruder γ-bands. The Doppler-shift attenuation method, comparison with Monte Carlo shell model (MCSM) calculations.

doi: 10.1103/PhysRevLett.123.142502
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2019LE11      Phys.Rev. C 100, 014320 (2019)

K.G.Leach, J.D.Holt, P.E.Garrett, S.R.Stroberg, G.C.Ball, P.C.Bender, V.Bildstein, A.Diaz Varela, R.Dunlop, T.Faestermann, B.Hadinia, R.Hertenberger, D.S.Jamieson, B.Jigmeddorj, R.Krucken, A.T.Laffoley, A.J.Radich, E.T.Rand, C.E.Svensson, S.Triambak, H.-F.Wirth

High-resolution (p, t) reaction measurements as spectroscopic tests of ab-initio theory in the mid-pf shell

NUCLEAR REACTIONS 52Cr, 64Zn(p, t), (p, p), E=24 MeV; measured Ep, Ip, E(t), I(t), differential σ(θ) using Q3D spectrometer at the MLL, Garching tandem accelerator facility; deduced optical model parameters. 50Cr, 62Zn; deduced levels, J, π. Comparison with ab-initio shell-model calculations using chiral effective field theory with the valence-space in-medium similarity renormalization group method (VS-IMSRG), and with evaluated data in the ENSDF database.

doi: 10.1103/PhysRevC.100.014320
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2019PO06      Phys.Rev. C 100, 054327 (2019)

J.L.Pore, C.Andreoiu, J.K.Smith, A.D.MacLean, A.Chester, J.D.Holt, G.C.Ball, P.C.Bender, V.Bildstein, R.Braid, A.Diaz Varela, R.Dunlop, L.J.Evitts, A.B.Garnsworthy, P.E.Garrett, G.Hackman, S.V.Ilyushkin, B.Jigmeddorj, K.Kuhn, P.Kunz, A.T.Laffoley, K.G.Leach, D.Miller, W.J.Mills, W.Moore, M.Moukaddam, L.N.Morrison, B.Olaizola, E.E.Peters, A.J.Radich, E.T.Rand, F.Sarazin, D.Southall, C.E.Svensson, S.J.Williams, S.W.Yates

Detailed spectroscopy of 46Ca: A study of the β- decay of 46K

RADIOACTIVITY 46K(β-)[from U(p, X), E=500 MeV]; measured Eγ, Iγ, γγ-coin, γγ(θ), ce, β particles using GRIFFIN array of 15 HPGe detectors for γ detection, PACES array of five Si(Li) detectors for conversion electrons, and SCEPTAR array of 10 plastic scintillators for β-particle tagging, half-life of 46K decay at TRIUMF-ISAC facility. 46Ca; deduced levels, J, π, β feedings, logft, γ-branching ratios, multipole mixing ratios. Comparison of level structure with theoretical predictions from microscopic valence space Hamiltonians derived from NN+3N forces.

doi: 10.1103/PhysRevC.100.054327
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2019RU02      Phys.Rev. C 99, 051301 (2019)

P.Ruotsalainen, J.Henderson, G.Hackman, G.H.Sargsyan, K.D.Launey, A.Saxena, P.C.Srivastava, S.R.Stroberg, T.Grahn, J.Pakarinen, G.C.Ball, R.Julin, P.T.Greenlees, J.Smallcombe, C.Andreoiu, N.Bernier, M.Bowry, M.Buckner, R.Caballero-Folch, A.Chester, S.Cruz, L.J.Evitts, R.Frederick, A.B.Garnsworthy, M.Holl, A.Kurkjian, D.Kisliuk, K.G.Leach, E.McGee, J.Measures, D.Mucher, J.Park, F.Sarazin, J.K.Smith, D.Southall, K.Starosta, C.E.Svensson, K.Whitmore, M.Williams, C.Y.Wu

Isospin symmetry in B(E2) values: Coulomb excitation study of 21Mg

NUCLEAR REACTIONS 196Pt(21Mg, 21Mg'), E=95 MeV; 110Pd(21Mg, 21Mg'), E=67 MeV; measured Eγ, Iγ, (particle)γ-coin, Coulomb excitation yields, half-life of the 1/2+ state in 21Mg using BAMBINO array for particle detection, and TIGRESS array for γ rays from Coulomb excited 21Mg states at TRIUMF-ISAC-II facility. 21Mg; deduced levels, J, π, Coulomb-excitation yields, E2 matrix elements, B(E2). GOSIA least-squares fit analysis. Systematics of 5/2+ to 1/2+ B(E2) values in T=-3/2 and +3/2 mirror nuclei: 21Mg, 21Fl; 25Si, 25Na; 29S, 29Al; 33Ar, 33P; 37Ca, 37Cl. Comparison with shell-model calculations with isospin conserving and breaking USD interactions, and using modern ab initio approach.

doi: 10.1103/PhysRevC.99.051301
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2018BA08      Phys.Rev. C 97, 024312 (2018)

C.Babcock, R.Klawitter, E.Leistenschneider, D.Lascar, B.R.Barquest, A.Finlay, M.Foster, A.T.Gallant, P.Hunt, B.Kootte, Y.Lan, S.F.Paul, M.L.Phan, M.P.Reiter, B.Schultz, D.Short, C.Andreoiu, M.Brodeur, I.Dillmann, G.Gwinner, A.A.Kwiatkowski, K.G.Leach, J.Dilling

Mass measurements of neutron-rich indium isotopes toward the N=82 shell closure

ATOMIC MASSES 125,125m,126,126m,127,127m,128,128m,129,129m,130,130mIn; measured time-of-flight ion-cyclotron-resonance frequencies using TRIUMF's Ion Traps for Atomic and Nuclear science experiment (TITAN); deduced mass excesses, and energies of the isomeric states. Comparison with AME-2016 and ENSDF evaluated data. systematics of S(2n) values for N=74-82 Sb, Sn In and Cd nuclei, and those of pairing gaps for N=70-82 Sn and In nuclei.

NUCLEAR REACTIONS U(p, X)125In/125mIn/126In/126mIn/127In/127mIn/128In/128mIn/129In/129mIn/130In/130mIn, E=480 MeV; measured reaction products and time-of-flight spectra for ions at TRIUMF-ISAC facility using Ion Guide Laser Ion ISAC magnetic mass separator, radio frequency quadrupole cooler and buncher (RFQ), a helium-filled Paul trap, and electron beam ion trap (EBIT).

doi: 10.1103/PhysRevC.97.024312
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2018GA22      Acta Phys.Pol. B49, 229 (2018)

P.E.Garrett, K.G.Leach, A.D.MacLean, G.C.Ball, P.C.Bender, V.Bildstein, B.A.Brown, C.Burbadge, A.Diaz Varela, R.Dunlop, T.Faestermann, B.Hadinia, R.Hertenberger, J.D.Holt, A.T.Laffoley, D.S.Jamieson, B.Jigmeddorj, A.J.Radich, E.T.Rand, S.R.Stroberg, C.E.Svensson, I.S.Towner, S.Triambak, H.-F.Wirth

Nuclear Structure Studied with Direct Reactions for Fundamental Symmetry Tests

NUCLEAR REACTIONS 52Cr(p, t)50Cr;64Zn(p, t)62Zn, E=24 MeV; measured reaction products momenta using Q3D magnetic spectrograph, Eγ, Iγ, γγ-coin; deduced peaks in triton spectra, σ(θ) vs θcm for reactions to given final states, angular correlation measurement of 1389-954 keV cascade in 62Zn following the β+/EC decay of 62Ga (preliminary).

doi: 10.5506/APhysPolB.49.229
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2018JA16      Phys.Rev. C 98, 044309 (2018)

D.S.Jamieson, P.E.Garrett, G.C.Ball, G.A.Demand, T.Faestermann, P.Finlay, K.L.Green, R.Hertenberger, K.G.Leach, A.A.Phillips, C.S.Sumithrarachchi, S.Triambak, H.-F.Wirth

Nuclear structure of 112Cd studied through the 111Cd (d-pol, p) reaction

NUCLEAR REACTIONS 111Cd(polarized d, p), E=22 MeV; measured E(p), I(p), differential σ(θ), and analyzing powers Ay(θ) using Q3D magnetic spectrograph and a position-sensitive cathode-strip detector for particle identification at the Maier-Leibnitz Laboratory in Garching. 112Cd; deduced levels, J, π, L-transfers, orbital assignments, two-quasineutron configurations, (2j+1) sum rule and spectroscopic factors. Comparison with DWBA and adiabatic distorted wave approximation (ADWA) calculations.

doi: 10.1103/PhysRevC.98.044309
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2018KU01      Phys.Lett. B 777, 250 (2018)

M.Kumar Raju, J.N.Orce, P.Navratil, G.C.Ball, T.E.Drake, S.Triambak, G.Hackman, C.J.Pearson, K.J.Abraham, E.H.Akakpo, H.Al Falou, R.Churchman, D.S.Cross, M.K.Djongolov, N.Erasmus, P.Finlay, A.B.Garnsworthy, P.E.Garrett, D.G.Jenkins, R.Kshetri, K.G.Leach, S.Masango, D.L.Mavela, C.V.Mehl, M.J.Mokgolobotho, C.Ngwetsheni, G.G.O'Neill, E.T.Rand, S.K.L.Sjue, C.S.Sumithrarachchi, C.E.Svensson, E.R.Tardiff, S.J.Williams, J.Wong

Reorientation-effect measurement of the first 2+ state in 12C: Confirmation of oblate deformation

NUCLEAR REACTIONS 194Pt(12C, 12C'), E=4.975 MeV/nucleon; measured reaction products, Eγ, Iγ. 12C; deduced γ-ray yields, B(E2) diagonal matrix element, oblate deformation. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2017.12.009
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2018LE03      Phys.Rev.Lett. 120, 062503 (2018)

E.Leistenschneider, M.P.Reiter, S.Ayet San Andres, B.Kootte, J.D.Holt, P.Navratil, C.Babcock, C.Barbieri, B.R.Barquest, J.Bergmann, J.Bollig, T.Brunner, E.Dunling, A.Finlay, H.Geissel, L.Graham, F.Greiner, H.Hergert, C.Hornung, C.Jesch, R.Klawitter, Y.Lan, D.Lascar, K.G.Leach, W.Lippert, J.E.McKay, S.F.Paul, A.Schwenk, D.Short, J.Simonis, V.Soma, R.Steinbrugge, S.R.Stroberg, R.Thompson, M.E.Wieser, C.Will, M.Yavor, C.Andreoiu, T.Dickel, I.Dillmann, G.Gwinner, W.R.Plass, C.Scheidenberger, A.A.Kwiatkowski, J.Dilling

Dawning of the N=32 Shell Closure Seen through Precision Mass Measurements of Neutron-Rich Titanium Isotopes

ATOMIC MASSES 51V, 51,52,53,54,55Ti, 52,53,54,55Cr; measured radio frequencies, TOF; deduced mass excesses. Comparison with the AME16 recommended values.

doi: 10.1103/PhysRevLett.120.062503
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2017BR14      Phys.Rev. C 96, 034316 (2017)

M.Brodeur, A.A.Kwiatkowski, O.M.Drozdowski, C.Andreoiu, D.Burdette, A.Chaudhuri, U.Chowdhury, A.T.Gallant, A.Grossheim, G.Gwinner, H.Heggen, J.D.Holt, R.Klawitter, J.Lassen, K.G.Leach, A.Lennarz, C.Nicoloff, S.Raeder, B.E.Schultz, S.R.Stroberg, A.Teigelhofer, R.Thompson, M.Wieser, J.Dilling

Precision mass measurements of magnesium isotopes and implications for the validity of the isobaric mass multiplet equation

ATOMIC MASSES 27,28,29Mg; measured cyclotron frequencies, mass excesses using TITAN Penning trap at ISAC-TRIUMF facility; deduced S(p). Comparison with AME-2016 evaluated data, and with ab initio calculations from the valence-space in-medium similarity renormalization group. 27,28,29Mg produced in SiC(p, X), E=480 MeV reaction, followed by laser resonance ionization in a radio-frequency ion guide (IG-LIS).29Mg, 29Cl, 30Mg, 30Ar; analyzed isobaric mass multiplet equation (IMME) in the form of a cubic term. 28S, 29Cl; need to confirm mass excess of 28S and S(n) of 29Cl.

doi: 10.1103/PhysRevC.96.034316
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2017DU11      Phys.Rev. C 96, 045502 (2017)

M.R.Dunlop, C.E.Svensson, G.C.Ball, J.R.Leslie, C.Andreoiu, N.Bernier, H.Bidaman, V.Bildstein, M.Bowry, C.Burbadge, R.Caballero-Folch, A.Diaz Varela, R.Dunlop, A.B.Garnsworthy, P.E.Garrett, G.Hackman, B.Jigmeddorj, K.G.Leach, A.D.MacLean, B.Olaizola, J.Measures, C.Natzke, Y.Saito, J.K.Smith, J.Turko, T.Zidar

High-precision half-life measurement for the superallowed Fermi β+ emitter 22Mg

RADIOACTIVITY 22Mg(β+)[from Si(p, X), E=480 MeV using ion guide laser ion source (IGLIS) at ISAC-TRIUMF facility]; measured Eγ, Iγ, β+ radiation, βγ-coin using a 4π continuous-flow gas proportional counter for β radiation and GRIFFIN array for γ detection, precise half-life of decay of 22Mg with detailed uncertainty analysis. Comparison with previous experimental results. Proposed further experiments to improve uncertainty of the superallowed branching ratio for tests of the CVC hypothesis.

doi: 10.1103/PhysRevC.96.045502
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2017GA20      Phys.Rev. C 96, 024325 (2017)

A.T.Gallant, M.Alanssari, J.C.Bale, C.Andreoiu, B.R.Barquest, U.Chowdhury, J.Even, A.Finlay, D.Frekers, G.Gwinner, R.Klawitter, B.Kootte, A.A.Kwiatkowski, D.Lascar, K.G.Leach, E.Leistenschneider, A.Lennarz, A.J.Mayer, D.Short, R.Thompson, M.Wieser, D.Lunney, J.Dilling

Mass determination near N=20 for Al and Na isotopes

ATOMIC MASSES 31,32Na, 29,34,35Al; measured cyclotron frequencies and mass excesses by time-of-flight ion-cyclotron-resonance (TOF-ICR) technique using the TITAN Penning trap mass spectrometer at ISAC-TRIUMF; deduced S(2n). Radioactive isotopes produced via the isotope separator on-line (ISOL) technique by a 480-MeV proton beam impinging on a UCx target, followed by the separation of sodium isotopes by surface ionization, and aluminum isotopes by the TRIUMF Resonant Ionization Laser Ion Source (TRILIS). Comparison with previous experimental values and mass evaluations. Systematics of S(2n) values for N=18-25 Na, Mg, and Al isotopic chains.

doi: 10.1103/PhysRevC.96.024325
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2017LA16      Phys.Rev. C 96, 044323 (2017)

D.Lascar, R.Klawitter, C.Babcock, E.Leistenschneider, S.R.Stroberg, B.R.Barquest, A.Finlay, M.Foster, A.T.Gallant, P.Hunt, J.Kelly, B.Kootte, Y.Lan, S.F.Paul, M.L.Phan, M.P.Reiter, B.Schultz, D.Short, J.Simonis, C.Andreoiu, M.Brodeur, I.Dillmann, G.Gwinner, J.D.Holt, A.A.Kwiatkowski, K.G.Leach, J.Dilling

Precision mass measurements of 125-127Cd isotopes and isomers approaching the N=82 closed shell

ATOMIC MASSES 125,125m,126,127,127mCd, 133Cs; measured TOF ion cyclotron resonances, cyclotron frequencies using TITAN-ISOLTRAP-TRIUMF facility; deduced mass excesses. Comparison with AME-2012 evaluated data, and ab initio shell-model calculations using NUSHELLX code, and with IMSRG calculations. The Cd isotopes produced in U(p, F), E=500 MeV protons using uranium carbide target and Ion Guide Laser Ion Source (IG-LIS) at ISAC-TRIUMF facility.

doi: 10.1103/PhysRevC.96.044323
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2017RA20      Eur.Phys.J. A 53, 184 (2017); Erratum Eur.Phys.J. A 54, 213 (2018)

A.J.Radich, P.E.Garrett, C.Andreoiu, G.C.Ball, L.Bianco, V.Bildstein, S.Chagnon-Lessard, D.S.Cross, G.A.Demand, A.Diaz Varela, R.Dunlop, P.Finlay, A.B.Garnsworthy, G.Hackman, B.Hadinia, B.Jigmeddorj, A.T.Laffoley, K.G.Leach, E.McGee, J.Michetti-Wilson, J.N.Orce, M.M.Rajabali, E.T.Rand, K.Starosta, C.S.Sumithrarachchi, C.E.Svensson, S.Triambak, Z.M.Wang, S.J.Williams, J.Wong, J.L Wood and S.W.Yates

New decay modes of the high-spin isomer of 124Cs

RADIOACTIVITY 124m,124Cs(IT), (β+);124Ba(β+); measured Eγ, Iγ, γγ-coin, X-rays, Eβ, Iβ, ee-coin. 124Xe[from Β+/EC-decay of 124mCs]; deduced levels, J, π, γ-ray transitions. 124mCs; deduced branching ratios for 16 levels populated in γ-decay of 7+ state.

doi: 10.1140/epja/i2017-12383-5
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2017RE10      Phys.Rev. C 96, 052501 (2017)

M.P.Reiter, K.G.Leach, O.M.Drozdowski, S.R.Stroberg, J.D.Holt, C.Andreoiu, C.Babcock, B.Barquest, M.Brodeur, A.Finlay, M.Foster, A.T.Gallant, G.Gwinner, R.Klawitter, B.Kootte, A.A.Kwiatkowski, Y.Lan, D.Lascar, E.Leistenschneider, A.Lennarz, S.Paul, R.Steinbrugge, R.I.Thompson, M.Wieser, J.Dilling

High-precision QEC-value measurement of the superallowed β+ emitter 22Mg and an ab initio evaluation of the A=22 isobaric triplet

ATOMIC MASSES 22Mg; measured time-of-flight quadrupole-excitation and Ramsey-excitation resonance spectra using Ion Trap for Atomic and Nuclear Science (TITAN) at TRIUMF; deduced average frequency ratios for the mass measurements. 22Mg, 22Na; deduced mass excesses and Q value for ϵ decay of 22Mg decay to 22Na. Comparison with AME-2016 and Hardy-Towner evaluations. 22Mg, 22Ne, 22Na; deduced new coefficients of the IMME by using state-of-the-art ab initio shell-model calculations of the IAS energies. Relevance to isospin-symmetry-breaking (ISB) correction in superallowed β decays.

doi: 10.1103/PhysRevC.96.052501
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2017TA30      Phys.Lett. B 774, 268 (2017)

J.Tanaka, R.Kanungo, M.Alcorta, N.Aoi, H.Bidaman, C.Burbadge, G.Christian, S.Cruz, B.Davids, A.Diaz Varela, J.Even, G.Hackman, M.N.Harakeh, J.Henderson, S.Ishimoto, S.Kaur, M.Keefe, R.Krucken, K.G.Leach, J.Lighthall, E.Padilla-Rodal, J.S.Randhawa, P.Ruotsalainen, A.Sanetullaev, J.K.Smith, O.Workman, I.Tanihata

Halo-induced large enhancement of soft dipole excitation of 11Li observed via proton inelastic scattering

NUCLEAR REACTIONS 1H(11Li, p'), E=66 MeV; measured reaction products, Ep, Ip. 11Li; deduced σ(θ), B(E1). DWBA calculations.

doi: 10.1016/j.physletb.2017.09.079
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2017VO05      Phys.Rev. C 96, 024305 (2017)

P.Voss, T.E.Drake, K.Starosta, C.Andreoiu, R.Ashley, G.C.Ball, P.C.Bender, A.Chester, R.Churchman, D.S.Cross, A.B.Garnsworthy, G.Hackman, B.Hadinia, R.Henderson, B.Jigmeddorj, S.Ketelhut, R.Krucken, A.T.Laffoley, K.G.Leach, D.Miller, R.Orlandi, C.J.Pearson, J.Pore, M.M.Rajabali, E.T.Rand, C.E.Svensson, E.Tardiff, C.Unsworth, Z.-M.Wang, A.Signoracci

Doppler-shift attenuation lifetime measurement of the 36Ar 2+1 level

NUCLEAR REACTIONS 12C(36Ar, 36Ar'), E=63 MeV; measured Eγ, (12C)γ-coin, half-life of the first 2+ state by Doppler-shift attenuation method (DSAM) following low-energy Coulomb excitation using TIGRESS spectrometer and PIN diode detectors at TRIUMF-ISAC facility. Carbon target backed with 197Au. 36Ar; deduced level, B(E2) for the first 2+ state, and compared with previous experimental data, and with shell-model calculations using USDB interaction.

doi: 10.1103/PhysRevC.96.024305
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2016CA33      Phys.Rev. C 94, 024314 (2016)

L.Capponi, J.F.Smith, P.Ruotsalainen, C.Scholey, P.Rahkila, K.Auranen, L.Bianco, A.J.Boston, H.C.Boston, D.M.Cullen, X.Derkx, M.C.Drummond, T.Grahn, P.T.Greenlees, L.Grocutt, B.Hadinia, U.Jakobsson, D.T.Joss, R.Julin, S.Juutinen, M.Labiche, M.Leino, K.G.Leach, C.McPeake, K.F.Mulholland, P.Nieminen, D.O'Donnell, E.S.Paul, P.Peura, M.Sandzelius, J.Saren, B.Saygi, J.Sorri, S.Stolze, A.Thornthwaite, M.J.Taylor, J.Uusitalo

Direct observation of the 114Ba → 110Xe → 106Te → 102Sn triple α-decay chain using position and time correlations

RADIOACTIVITY 114Ba, 110Xe, 106Te(α)[114Ba from 58Ni(58Ni, 2n), E=210 MeV using RITU recoil separator, 110Xe and 106Te from descendents of 114Ba decay]; measured Eα, Iα, three successive α-decay correlated events, half-lives of decays of 114Ba, 110Xe and 106Te, reaction cross section at K130 cyclotron facility of University of Jyvaskyla; deduced Q(α), Q(12C), α-decay mode branching ratios, reduced α-decay widths.

doi: 10.1103/PhysRevC.94.024314
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2016JI02      Eur.Phys.J. A 52, 36 (2016)

B.Jigmeddorj, P.E.Garrett, A.Diaz Varela, G.C.Ball, J.C.Bangay, D.S.Cross, G.A.Demand, A.B.Garnsworthy, K.L.Green, G.Hackman, W.D.Kulp, K.G.Leach, J.N.Orce, E.T.Rand, C.Sumithrarachchi, C.E.Svensson, S.Triambak, J.Wong, J.L.Wood, S.W.Yates

Conversion electron study of 110Cd: Evidence of new E0 branches

RADIOACTIVITY 110In(β+), (EC); measured Eγ, Iγ, X-rays, Ee, Ie, (X-ray)e--coin, γe--coin, γγ-coin at TRIUMF-ISAC; deduced conversion electrons K, L subshell ratios, γ-transitions, multipolarity, levels, J, π, K-conversion electron lines, conversion coefficients, E2/M1 mixing ratio, ρ2(E0) for the 4+3 to 4+1 transition. Subshell E2, M1 ratios, conversion coefficients compared to published calculations. 110,112,114,116Cd deduced systematics for γ-transitions connecting intruder and gs bands.

doi: 10.1140/epja/i2016-16036-y
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2016KL04      Phys.Rev. C 93, 045807 (2016)

R.Klawitter, A.Bader, M.Brodeur, U.Chowdhury, A.Chaudhuri, J.Fallis, A.T.Gallant, A.Grossheim, A.A.Kwiatkowski, D.Lascar, K.G.Leach, A.Lennarz, T.D.Macdonald, J.Pearkes, S.Seeraji, M.C.Simon, V.V.Simon, B.E.Schultz, J.Dilling

Mass measurements of neutron-rich Rb and Sr isotopes

ATOMIC MASSES 98,99,100Rb, 98,99,100,101Sr; measured cyclotron frequency using the time-of-flight ion-cyclotron-resonance technique (TOF-ICR) using TITAN Penning-trap mass spectrometer at ISAC-TRIUMF; deduced mass excesses. Comparison with previous measurements and AME-2012 evaluation. Rb and Sr ions produced in U(p, F), E=480 MeV reaction and separated by a dipole magnet.

doi: 10.1103/PhysRevC.93.045807
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2016LE10      Phys.Rev. C 94, 011304 (2016)

K.G.Leach, P.E.Garrett, G.C.Ball, P.C.Bender, V.Bildstein, B.A.Brown, C.Burbadge, T.Faestermann, B.Hadinia, J.D.Holt, A.T.Laffoley, D.S.Jamieson, B.Jigmeddorj, A.J.Radich, E.T.Rand, S.R.Stroberg, C.E.Svensson, I.S.Towner, H.-F.Wirth

Searching for 0+ states in 50Cr: Implications for the superallowed β decay of 50Mn

NUCLEAR REACTIONS 52Cr(p, t), E=24 MeV; measured E(t), I(t), σ(θ) using Q3D magnetic spectrograph at MLL-Munich. 50Cr; deduced levels, J, π, L-transfers, 0+ states. Coupled-channel, finite-range DWBA analysis using software FRESCO code. Comparison with ab initio shell-model predictions using in-medium similarity renormalization group (IM-SRG) formalism based on NN and 3N forces from chiral-energy density functionals (EFT).Comparison with previous experimental results and evaluated data in the ENSDF database.

RADIOACTIVITY 50Mn(EC); discussed possible Fermi non-analog β transitions to 0+ states at 3895 and 4069 keV assigned in authors' (p, t) work.

doi: 10.1103/PhysRevC.94.011304
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2016PA03      Phys.Rev. C 93, 014315 (2016)

J.Park, A.B.Garnsworthy, R.Krucken, C.Andreoiu, G.C.Ball, P.C.Bender, A.Chester, A.Close, P.Finlay, P.E.Garrett, J.Glister, G.Hackman, B.Hadinia, K.G.Leach, E.T.Rand, S.Sjue, K.Starosta, C.E.Svensson, E.Tardiff

Shape coexistence and evolution in 98Sr

RADIOACTIVITY 98Rb(β-)[from U(p, F), E=500 MeV at TRIUMF-ISAC]; measured Eγ, Iγ, I(ce), βγ-, β(ce)-, γγ-, γ(ce)- and ce(ce)-coincidences using 8π array of 20 Compton-suppressed HPGe detectors for γ rays, ten plastic scintillators for β detection, and a set of five Si(Li) detectors (PACES) for conversion electrons. 98Sr; deduced levels, absolute intensities of γ transitions, B(E0), B(E2). Comparison with two-state mixing model for interpretation of ρ2(E0) value, deduction of mixing of the two low-lying 0+ and 2+ states, and deformation parameters.

doi: 10.1103/PhysRevC.93.014315
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2016WA16      Phys.Rev. C 93, 054301 (2016)

Z.M.Wang, A.B.Garnsworthy, C.Andreoiu, G.C.Ball, P.C.Bender, V.Bildstein, D.S.Cross, G.Demand, R.Dunlop, L.J.Evitts, P.E.Garrett, G.Hackman, B.Hadinia, S.Ketelhut, R.Krucken, K.G.Leach, A.T.Laffoley, D.Miller, M.Moukaddam, J.Pore, A.J.Radich, M.M.Rajabali, C.E.Svensson, A.Tan, E.Tardiff, C.Unsworth, A.Voss, P.Voss

Observation of a large β-delayed neutron emission component in 102Rb decay and identification of excited states in 102Sr

RADIOACTIVITY 102Rb(β-), (β-n)[from U(p, F), E=500 MeV at TRIUMF-ISAC facility]; measured Eβ, Eγ, Iγ, βγ-, γγ-coin using 8π array for γ detection and SCEPTAR plastic scintillator for β detection. 102,102Sr; deduced levels, J, π, delayed neutron-emission probability Pn. Systematics of absolute intensity of the first 2+ to 0+ transition, and direct ground-state feeding in β-delayed neutron emission in the β decays of 94,96,98,100,102Rb. Plots of Pn/T1/2 versus Qβn for decays of 94,96,98,100,102Rb, and comparison with theoretical and phenomenological descriptions. 102Zr, 102Sr, 101Zr(β-); observed γ rays.

doi: 10.1103/PhysRevC.93.054301
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2016WI03      Phys.Lett. B 759, 417 (2016)

G.L.Wilson, W.N.Catford, N.A.Orr, C.Aa.Diget, A.Matta, G.Hackman, S.J.Williams, I.C.Celik, N.L.Achouri, H.Al Falou, R.Ashley, R.A.E.Austin, G.C.Ball, J.C.Blackmon, A.J.Boston, H.C.Boston, S.M.Brown, D.S.Cross, M.Djongolov, T.E.Drake, U.Hager, S.P.Fox, B.R.Fulton, N.Galinski, A.B.Garnsworthy, D.Jamieson, R.Kanungo, K.G.Leach, J.N.Orce, C.J.Pearson, M.Porter-Peden, F.Sarazin, E.C.Simpson, S.Sjue, D.Smalley, C.Sumithrarachchi, S.Triambak, C.Unsworth, R.Wadsworth

Shell evolution approaching the N = 20 island of inversion: Structure of 26Na

NUCLEAR REACTIONS 2H(25Na, pγ)26Na, E=5 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), energy levels, J, π, level scheme. Comparison with available data.

doi: 10.1016/j.physletb.2016.05.093
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2015CA03      Acta Phys.Pol. B46, 527 (2015)

W.N.Catford, I.C.Celik, G.L.Wilson, A.Matta, N.A.Orr, C.Aa.Diget, P.Adsley, H.Al Falou, R.Ashley, R.A.E.Austin, G.C.Ball, J.C.Blackmon, A.J.Boston, H.C.Boston, S.M.Brown, D.S.Cross, M.Djongolov, T.E.Drake, U.Hager, S.P.Fox, B.R.Fulton, N.Galinski, A.B.Garnsworthy, G.Hackman, D.Jamieson, R.Kanungo, K.Leach, J-P.Martin, J.N.Orce, C.J.Pearson, M.Porter-Peden, F.Sarazin, S.Sjue, C.Sumithrarachchi, C.E.Svensson, S.Triambak, C.Unsworth, R.Wadsworth, S.J.Williams

Structure of 26Na via a Novel Technique Using (d, pγ) with a Radioactive 25Na Beam

NUCLEAR REACTIONS 2H(25Na, X)26Na, E not given; measured reaction products, Eγ, Iγ; deduced excited states, J, π.

doi: 10.5506/APhysPolB.46.527
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2015CH58      Phys.Rev. C 92, 045803 (2015)

U.Chowdhury, K.G.Leach, C.Andreoiu, A.Bader, M.Brodeur, A.Chaudhuri, A.T.Gallant, A.Grossheim, G.Gwinner, R.Klawitter, A.A.Kwiatkowski, A.Lennarz, T.D.Macdonald, J.Pearkes, B.E.Schultz, J.Dilling

First direct mass measurement of the neutron-deficient nucleus 24Al

ATOMIC MASSES 24Al; measured time-of-flight quadrupole excitation resonance spectrum for 24Al ions, mass excess using TITAN Penning-Trap mass spectrometer and Ion-Guide Laser Ion Source (IG-LIS) at TRIUMF; deduced S(p). Comparison with other data and with AME-2012.

NUCLEAR REACTIONS 23Mg(p, γ)24Al; measured reaction resonance energy of astrophysical interest. Comparison with data from DRAGON at TRIUMF.

doi: 10.1103/PhysRevC.92.045803
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2015LA19      Phys.Rev. C 92, 025502 (2015)

A.T.Laffoley, C.E.Svensson, C.Andreoiu, G.C.Ball, P.C.Bender, H.Bidaman, V.Bildstein, B.Blank, D.S.Cross, G.Deng, A.Diaz Varela, M.R.Dunlop, R.Dunlop, A.B.Garnsworthy, P.E.Garrett, J.Giovinazzo, G.F.Grinyer, J.Grinyer, G.Hackman, B.Hadinia, D.S.Jamieson, B.Jigmeddorj, D.Kisliuk, K.G.Leach, J.R.Leslie, A.D.MacLean, D.Miller, B.Mills, M.Moukaddam, A.J.Radich, M.M.Rajabali, E.T.Rand, J.C.Thomas, J.Turko, C.Unsworth, P.Voss

High-precision half-life measurements for the superallowed Fermi β+ emitter 18Ne

RADIOACTIVITY 18Ne(β+), (EC), 23Ne(β-)[from Si(p, X), E=480 MeV, mass-separated 18,23Ne beams]; measured β using 4π continuous-flow gas proportional counter, Eγ, Iγ, βγ-coin, half-lives of 18Ne and 23Ne isotopes at TRIUMF-ISAC facility. Discussed rate-dependent and diffusion effects, and uncertainty analysis. Comparison with previous measurements. Relevance to superallowed Fermi decay.

doi: 10.1103/PhysRevC.92.025502
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2015RA05      Phys.Rev. C 91, 044320 (2015)

A.J.Radich, P.E.Garrett, J.M.Allmond, C.Andreoiu, G.C.Ball, L.Bianco, V.Bildstein, S.Chagnon-Lessard, D.S.Cross, G.A.Demand, A.Diaz Varela, R.Dunlop, P.Finlay, A.B.Garnsworthy, G.Hackman, B.Hadinia, B.Jigmeddorj, A.T.Laffoley, K.G.Leach, J.Michetti-Wilson, J.N.Orce, M.M.Rajabali, E.T.Rand, K.Starosta, C.S.Sumithrarachchi, C.E.Svensson, S.Triambak, Z.M.Wang, J.L.Wood, J.Wong, S.J.Williams, S.W.Yates

Ground-state and pairing-vibrational bands with equal quadrupole collectivity in 124Xe

RADIOACTIVITY 124Cs(β+), (EC)[from Ta(p, X), E=500 MeV]; measured Eγ, Iγ, γγ-coin using 8π array at TRIUMF-ISAC facility. 124Xe; deduced levels, J, π, B(E2) ratios, deformation parameters, proton-pairing vibrational band; analyzed previous Coulomb excitation data by GOSIA code. Comparison with interacting boson model (IBM) and dynamic-pairing plus quadrupole (DPPQ) model calculations. Systematics of energies and B(E2) values for 0+ and 2+ states in 120,122,124,126,128,130Xe.

doi: 10.1103/PhysRevC.91.044320
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2014GA20      Phys.Rev.Lett. 113, 082501 (2014)

A.T.Gallant, M.Brodeur, C.Andreoiu, A.Bader, A.Chaudhuri, U.Chowdhury, A.Grossheim, R.Klawitter, A.A.Kwiatkowski, K.G.Leach, A.Lennarz, T.D.Macdonald, B.E.Schultz, J.Lassen, H.Heggen, S.Raeder, A.Teigelhofer, B.A.Brown, A.Magilligan, J.D.Holt, J.Menendez, J.Simonis, A.Schwenk, J.Dilling

Breakdown of the Isobaric Multiplet Mass Equation for the A=20 and 21 Multiplets

ATOMIC MASSES 20,21Mg; measured time-of-flight ion cyclotron resonance; deduced masses. Comparison with shell model calculations, AME2012 mass evaluation.

doi: 10.1103/PhysRevLett.113.082501
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2014GA24      Phys.Rev. C 90, 035803 (2014)

N.Galinski, S.K.L.Sjue, G.C.Ball, D.S.Cross, B.Davids, H.Al Falou, A.B.Garnsworthy, G.Hackman, U.Hager, D.A.Howell, M.Jones, R.Kanungo, R.Kshetri, K.G.Leach, J.R.Leslie, M.Moukaddam, J.N.Orce, E.T.Rand, C.Ruiz, G.Ruprecht, M.A.Schumaker, C.E.Svensson, S.Triambak, C.D.Unsworth

Lifetime measurements of states in 15O

NUCLEAR REACTIONS 3He(16O, α), E=50 MeV; measured Eγ, Iγ, Eα, Iα, αγ-coin, level half-lives by DSAM using TIGRESS array for γ detection and Si detector telescopes for α particles at TRIUMF-ISAC-II facility. 15O; deduced three levels and associated half-lives. Monte-Carlo simulations. Relevance to astrophysical reaction rates for 14N(p, γ)15O reaction.

doi: 10.1103/PhysRevC.90.035803
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2014JA19      Phys.Rev. C 90, 054312 (2014)

D.S.Jamieson, P.E.Garrett, V.Bildstein, G.A.Demand, P.Finlay, K.L.Green, K.G.Leach, A.A.Phillips, C.S.Sumithrarachchi, C.E.Svensson, S.Triambak, G.C.Ball, T.Faestermann, R.Hertenberger, H.-F.Wirth

Quadrupole-octupole coupled states in 112Cd populated in the 111Cd(d(pol), p) reaction

NUCLEAR REACTIONS 111Cd(polarized d, p), E=22 MeV; measured E(p), I(p), σ(θ), vector analyzing powers Ay(θ) using Q3D magnetic spectrograph at TMU-Munich accelerator facility. 112Cd; deduced levels, L-transfers, J, π, B(E2), configurations, spectroscopic strength. DWBA and ADWA analysis of σ(θ) and Ay(θ) data. Comparison with other experimental results. Systematics of energies and B(E2) values for 5- and 6- states in 106,108,110,112,114,116,118,120,122,124Cd; and discussion of quadrupole-octupole (QOC) two-phonon quintuplet states.

doi: 10.1103/PhysRevC.90.054312
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2014LE20      Phys.Rev.Lett. 113, 082502 (2014)

A.Lennarz, A.Grossheim, K.G.Leach, M.Alanssari, T.Brunner, A.Chaudhuri, U.Chowdhury, J.R.C.Lopez-Urrutia, A.T.Gallant, M.Holl, A.A.Kwiatkowski, J.Lassen, T.D.Macdonald, B.E.Schultz, S.Seeraji, M.C.Simon, C.Andreoiu, J.Dilling, D.Frekers

In-Trap Spectroscopy of Charge-Bred Radioactive Ions

RADIOACTIVITY 124In(β-), 124Cs(EC); measured decay products, Eγ, Iγ, X-rays; deduced isomer yields, T1/2, γ-ray energies, branching ratios. Electron-beam ion trap of the TITAN facility at TRIUMF.

doi: 10.1103/PhysRevLett.113.082502
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2014SC09      Phys.Rev. C 90, 012501 (2014)

B.E.Schultz, M.Brodeur, C.Andreoiu, A.Bader, A.Chaudhuri, U.Chowdhury, A.T.Gallant, A.Grossheim, R.Klawitter, A.A.Kwiatkowski, K.G.Leach, A.Lennarz, T.D.Macdonald, J.Lassen, H.Heggen, S.Raeder, A.Teigelhofer, J.Dilling

Precision QEC-value measurement of 23Mg for testing the Cabibbo-Kobayashi-Maskawa matrix unitarity

ATOMIC MASSES 23Mg; measured quadrupole and Ramsey resonances, frequency ratios of 23Mg+ to 23Na+ using TITAN Penning-trap mass spectrometer at ISAC-TRIUMF facility; deduced Q value for 23Mg decay. Comparison with AME-2012.

RADIOACTIVITY 23Mg(EC)[from Si(p, X), E=480 MeV]; measured precise mass; deduced Q value, statistical rate function, ft value of mirror β transition. Comparison of Q value with AME-2012 evaluation. Test of the Cabibbo-Kobayashi-Maskawa matrix unitarity.

doi: 10.1103/PhysRevC.90.012501
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2013CH01      Phys.Rev.Lett. 110, 022504 (2013)

A.Chakraborty, E.E.Peters, B.P.Crider, C.Andreoiu, P.C.Bender, D.S.Cross, G.A.Demand, A.B.Garnsworthy, P.E.Garrett, G.Hackman, B.Hadinia, S.Ketelhut, Ajay Kumar, K.G.Leach, M.T.McEllistrem, J.Pore, F.M.Prados-Estevez, E.T.Rand, B.Singh, E.R.Tardiff, Z.-M.Wang, J.L.Wood, S.W.Yates

Collective Structure in 94Zr and Subshell Effects in Shape Coexistence

RADIOACTIVITY 94Y(β-) [from U(p, X), E=500 MeV]; measured decay products, Eγ, Iγ; deduced excited 2+ state, B(E2) value. Comparison with available data.

NUCLEAR REACTIONS 94Zr(n, nγ), E=2-2.8 MeV; analyzed available data; deduced B(E2), collective structures, shape coexistence.

doi: 10.1103/PhysRevLett.110.022504
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2013DU14      Phys.Rev. C 88, 045501 (2013)

R.Dunlop, G.C.Ball, J.R.Leslie, C.E.Svensson, I.S.Towner, C.Andreoiu, S.Chagnon-Lessard, A.Chester, D.S.Cross, P.Finlay, A.B.Garnsworthy, P.E.Garrett, J.Glister, G.Hackman, B.Hadinia, K.G.Leach, E.T.Rand, K.Starosta, E.R.Tardiff, S.Triambak, S.J.Williams, J.Wong, S.W.Yates, E.F.Zganjar

High-precision branching-ratio measurement for the superallowed Β+ emitter 74Rb

RADIOACTIVITY 74Rb(β+), (EC)[from Nb(p, X, ), E=500 MeV]; measured Eγ, Iγ, Eβ, Iβ, ce, γγ-, γ(ce)-, βγ-, β(ce)-coin using 8π array for γ rays, SCEPTAR for β particles and PACES for conversion electrons at ISAC-TRIUMF facility. 74Kr; deduced levels, J, π, conversion coefficients, multipolarity, E0 transition, branching ratio for superallowed β transition, logft, GT+F, isospin-symmetry breaking terms. Comparison of experimental GT values with theoretical values.

doi: 10.1103/PhysRevC.88.045501
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2013LA23      Phys.Rev. C 88, 015501 (2013)

A.T.Laffoley, C.E.Svensson, C.Andreoiu, R.A.E.Austin, G.C.Ball, B.Blank, H.Bouzomita, D.S.Cross, A.Diaz Varela, R.Dunlop, P.Finlay, A.B.Garnsworthy, P.E.Garrett, J.Giovinazzo, G.F.Grinyer, G.Hackman, B.Hadinia, D.S.Jamieson, S.Ketelhut, K.G.Leach, J.R.Leslie, E.Tardiff, J.C.Thomas, C.Unsworth

High-precision half-life measurements for the superallowed Fermi β+ emitter 14O

RADIOACTIVITY 14O(β+)[from 12C14O molecules in A=26 products produced in bombardment of SiC target by 500 MeV protons]; measured Eγ, Iγ, Eβ, Iβ, half-life of 14O superallowed β+ emitter using 8π detector array for γ rays and plastic scintillators for β radiation at TRIUMF-ISAC facility. Detailed analysis of statistical and systematic uncertainties. Comparison with previous experimental half-life values.

doi: 10.1103/PhysRevC.88.015501
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2013LE19      Phys.Rev. C 87, 064306 (2013); Pub.Note Phys.Rev. C 87, 069904 (2013)

K.G.Leach, P.E.Garrett, I.S.Towner, G.C.Ball, V.Bildstein, B.A.Brown, G.A.Demand, T.Faestermann, P.Finlay, K.L.Green, R.Hertenberger, R.Krucken, A.A.Phillips, E.T.Rand, C.S.Sumithrarachchi, C.E.Svensson, S.Triambak, H.-F.Wirth, J.Wong

Experimental 64Zn((d-pol), t)63Zn spectroscopic factors: Guidance for isospin-symmetry-breaking calculations

NUCLEAR REACTIONS 64Zn(polarized d, t), E=22 MeV; measured triton spectra, σ(θ) and vector analyzing powers using Q3D magnetic spectrograph at MLL, Munich facility. DWBA analyses using several optical model parameters. 63Zn; deduced levels, L-transfers, J, π, spectroscopic factors. Comparison with shell-model calculations with GXPF1A interaction. Comparison with experimental and theoretical spectroscopic factors for 62Zn(d, t)61Zn reaction. Discussed implications for isospin symmetry breaking (ISB) calculations for 62Ga to 62Zn superallowed β decay.

doi: 10.1103/PhysRevC.87.064306
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2013LE25      Phys.Rev. C 88, 031306 (2013)

K.G.Leach, P.E.Garrett, C.E.Svensson, I.S.Towner, G.C.Ball, V.Bildstein, B.A.Brown, A.Diaz Varela, R.Dunlop, T.Faestermann, R.Hertenberger, D.J.Jamieson, R.Krucken, S.Triambak, H.-F.Wirth

Excited O+ states in 62Zn populated via the 64Zn(p, t)62Zn reaction

NUCLEAR REACTIONS 64Zn(p, t), E=24 MeV; measured triton spectra, σ(θ) using Q3D magnetic spectrograph at MLL-Munich facility. DWBA analysis of σ(θ) data. 62Zn; deduced levels, J, π, l-transfer, excited 0+ states. Comparison with shell-model calculations using MSDI3, GXPF1 and GXPF1A interactions. Discussed impact on isospin-symmetry-breaking (ISB) correction for 62Ga superallowed due to shift in the first excited 0+ state in 62Zn.

doi: 10.1103/PhysRevC.88.031306
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2012FI06      Phys.Rev. C 85, 055501 (2012)

P.Finlay, G.C.Ball, J.R.Leslie, C.E.Svensson, C.Andreoiu, R.A.E.Austin, D.Bandyopadhyay, D.S.Cross, G.Demand, M.Djongolov, S.Ettenauer, P.E.Garrett, K.L.Green, G.F.Grinyer, G.Hackman, K.G.Leach, C.J.Pearson, A.A.Phillips, E.T.Rand, C.S.Sumithrarachchi, S.Triambak, S.J.Williams

High-precision branching-ratio measurement for the superallowed β+ emitter 26Alm

RADIOACTIVITY 26mAl(β+), (EC); measured Iβ, Eγ, Iγ, βγ-coin, βγ-anticoin at TRIUMF-ISAC facility; deduced upper limit for total non-superallowed β++EC branching ratio to excited states in 26Mg.

doi: 10.1103/PhysRevC.85.055501
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2012GA41      Phys.Rev. C 86, 044304 (2012)

P.E.Garrett, J.Bangay, A.Diaz Varela, G.C.Ball, D.S.Cross, G.A.Demand, P.Finlay, A.B.Garnsworthy, K.L.Green, G.Hackman, C.D.Hannant, B.Jigmeddorj, J.Jolie, W.D.Kulp, K.G.Leach, J.N.Orce, A.A.Phillips, A.J.Radich, E.T.Rand, M.A.Schumaker, C.E.Svensson, C.Sumithrarachchi, S.Triambak, N.Warr, J.Wong, J.L.Wood, S.W.Yates

Detailed spectroscopy of 110Cd: Evidence for weak mixing and the emergence of γ-soft behavior

NUCLEAR REACTIONS 110Cd(n, n'), E=2.1-3.4 MeV; analyzed Eγ, Iγ, γγ-coin, γ(θ), DSA data. 110Cd; deduced levels, J, π, half-lives, multipolarity, mixing ratio, B(E2).

RADIOACTIVITY 110In(β+), (EC)[from Ta(p, X), E=500 MeV]; measured Eγ, Iγ, γγ-, γe--coin, T1/2 at TRIUMF-ISAC facility. 110Cd; deduced levels, J, π, mixing ratio, B(E2). Systematics of low-lying 0+ levels and transition rates in 110,112,114,116Cd. No evidence for strong mixing of the intruder and nonintruder configurations. γ-soft or O(6)-type nucleus.

doi: 10.1103/PhysRevC.86.044304
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2012OR05      Phys.Rev. C 86, 041303 (2012)

J.N.Orce, T.E.Drake, M.K.Djongolov, P.Navratil, S.Triambak, G.C.Ball, H.Al Falou, R.Churchman, D.S.Cross, P.Finlay, C.Forssen, A.B.Garnsworthy, P.E.Garrett, G.Hackman, A.B.Hayes, R.Kshetri, J.Lassen, K.G.Leach, R.Li, J.Meissner, C.J.Pearson, E.T.Rand, F.Sarazin, S.K.L.Sjue, M.A.Stoyer, C.S.Sumithrarachchi, C.E.Svensson, E.R.Tardiff, A.Teigelhoefer, S.J.Williams, J.Wong, C.Y.Wu

Reorientation-effect measurement of the (2+1 ll E2 ll 2+1) matrix element in 10Be

NUCLEAR REACTIONS 194Pt(10Be, 10Be'), E=41 MeV, [10Be beam from Ta(p, X), E=500 MeV]; measured Eγ, Iγ, particle spectra, (particle)γ-coin, angular distribution of γ yields for first 2+ states in 10Be and 194Pt using TIGRESS array at TRIUMF-ISACII facility. 10Be; deduced levels, J, π, diagonal matrix element for first 2+ state, spectroscopic quadrupole moment. 10Be, 194Pt; analyzed yield data using GOSIA code. Reorientation-effect in Coulomb-excitation. Comparison with shell-model (NCSM) calculations.

doi: 10.1103/PhysRevC.86.041303
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2011FI01      Phys.Rev.Lett. 106, 032501 (2011)

P.Finlay, S.Ettenauer, G.C.Ball, J.R.Leslie, C.E.Svensson, C.Andreoiu, R.A.E.Austin, D.Bandyopadhyay, D.S.Cross, G.Demand, M.Djongolov, P.E.Garrett, K.L.Green, G.F.Grinyer, G.Hackman, K.G.Leach, C.J.Pearson, A.A.Phillips, C.S.Sumithrarachchi, S.Triambak, S.J.Williams

High-Precision Half-Life Measurement for the Superallowed β+ Emitter 26Alm

RADIOACTIVITY 26Al(β+) [from Si(p, X), E=500 MeV]; measured decay products; deduced T1/2. Comparison with Skyrme-Hartree-Fock calculations.

COMPILATION 10C, 14O, 22Mg, 26Al, 34Cl, 34Ar, 38K, 42Sc, 46V, 50Mn, 54Co, 62Ga, 74Rb; compiled log ft values.

doi: 10.1103/PhysRevLett.106.032501
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2011GA10      Acta Phys.Pol. B42, 799 (2011)

P.E.Garrett, K.L.Green, R.A.E.Austin, G.C.Ball, D.S.Bandyopadhyay, S.Colosimo, D.S.Cross, G.A.Demand, G.F.Grinyer, G.Hackman, W.D.Kulp, K.G.Leach, A.C.Morton, C.J.Pearson, A.A.Phillips, M.A.Schumaker, C.E.Svensson, J.Wong, J.L.Wood, S.W.Yates

Using β-decay to Map the E2 Strength in the Cd Isotopes and the Downfall of Vibrational Motion

RADIOACTIVITY 112Ag(β-) [from Ta(p, X), E=500 MeV]; measured Eγ, γ, γ-γ-coin.; deduced branching ratios, B(E2), rotational interpretation.

doi: 10.5506/APhysPolB.42.799
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2011LE47      J.Phys.:Conf.Ser. 312, 092036 (2011)

K.G.Leach, P.E.Garrett, G.C.Ball, J.C.Bangay, L.Bianco, G.A.Demand, T.Faestermann, P.Finlay, K.L.Green, R.Hertenberger, R.Kriicken, A.A.Phillips, E.T.Rand, C.S.Sumithrarachchi, C.E.Svensson, I.S.Towner, S.Triambak, H.-F.Wirth, J.Wong

Experimental Guidance of ISB Corrections via Direct Nuclear Reactions

NUCLEAR REACTIONS 64Zn(polarized d, d), (polarized d, t), E=22 MeV; measured Ep, Ip(θ), E(triton), I(triton, θ) using Q3D magnetic spectrograph; deduced elastic scattering σ(θ), vector analyzing power; calculated elastic scattering σ(θ), vector analyzing power using DWBA with isospin-symmetry breaking corrections and deuteron parameters from literature.

doi: 10.1088/1742-6596/312/9/092036
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2010KA03      Phys.Lett. B 682, 391 (2010)

R.Kanungo, A.T.Gallant, M.Uchida, C.Andreoiu, R.A.E.Austin, D.Bandyopadhyay, G.C.Ball, J.A.Becker, A.J.Boston, H.C.Boston, B.A.Brown, L.Buchmann, S.J.Colosimo, R.M.Clark, D.Cline, D.S.Cross, H.Dare, B.Davids, T.E.Drake, M.Djongolov, P.Finlay, N.Galinski, P.E.Garrett, A.B.Garnsworthy, K.L.Green, S.Grist, G.Hackman, L.J.Harkness, A.B.Hayes, D.Howell, A.M.Hurst, H.B.Jeppesen, K.G.Leach, A.O.Macchiavelli, D.Oxley, C.J.Pearson, B.Pietras, A.A.Phillips, S.V.Rigby, C.Ruiz, G.Ruprecht, F.Sarazin, M.A.Schumaker, A.C.Shotter, C.S.Sumitharachchi, C.E.Svensson, I.Tanihata, S.Triambak, C.Unsworth, S.J.Williams, P.Walden, J.Wong, C.Y.Wu

Structure of states in 12Be via the 11Be(d, p) reaction

NUCLEAR REACTIONS 2H(11Be, p), E=5 MeV/nucleon; measured proton spectra, recoiling and product nucleus spectra, p(nucleus)-coin; deduced σ(θ), Q-value spectra, peak widths. 12Be; deduced energy levels, J, π, spectroscopic factors using DWBA analysis.

doi: 10.1016/j.physletb.2009.11.025
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2010PH01      Phys.Rev. C 82, 034321 (2010)

A.A.Phillips, P.E.Garrett, N.Lo Iudice, A.V.Sushkov, L.Bettermann, N.Braun, D.G.Burke, G.A.Demand, T.Faestermann, P.Finlay, K.L.Green, R.Hertenberger, K.G.Leach, R.Krucken, M.A.Schumaker, C.E.Svensson, H.-F.Wirth, J.Wong

Structure of the Kπ=4+ bands in 186, 188Os

NUCLEAR REACTIONS 185,187Re(3He, d), E=30 MeV; measured E(d), I(d), σ, σ(θ); DWBA analysis of σ(θ) data. 186,188Os; deduced levels, J, π, L-transfers, spectroscopic factors, bands and amplitudes of two-quasiparticle components. Comparison with quasiparticle-phonon model (QPM) predictions.

doi: 10.1103/PhysRevC.82.034321
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2009GA04      Phys.Rev. C 79, 017601 (2009)

P.E.Garrett, A.A.Phillips, G.A.Demand, P.Finlay, K.L.Green, K.G.Leach, M.A.Schumaker, C.E.Svensson, J.Wong, R.Hertenberger, H.-F.Wirth, T.Faestermann, R.Krucken, D.G.Burke, L.Bettermann, N.Braun

Scattering of 30 MeV 3He from 185Re

NUCLEAR REACTIONS 185Re(3He, 3He), (3He, 3He'), E=30 MeV; measured σ(θ). Comparison with results of ECISO3 calculations.

doi: 10.1103/PhysRevC.79.017601
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2009GR10      Phys.Rev. C 80, 032502 (2009)

K.L.Green, P.E.Garrett, R.A.E.Austin, G.C.Ball, D.S.Bandyopadhyay, S.Colosimo, D.Cross, G.A.Demand, G.F.Grinyer, G.Hackman, W.D.Kulp, K.G.Leach, A.C.Morton, C.J.Pearson, A.A.Phillips, M.A.Schumaker, C.E.Svensson, J.Wong, J.L.Wood, S.W.Yates

Degeneracy at 1871 keV in 112Cd and implications for neutrinoless double electron capture

RADIOACTIVITY 112Ag(β-), 112In(EC)[from Ta(p, X), E=500 MeV]; measured Eγ, Iγ, γγ-coin using 8π array. 112Cd; deduced levels, J, π, B(E2). Discussed implications for 0νββ decay of 112Sn.

doi: 10.1103/PhysRevC.80.032502
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2009HU03      Phys.Lett. B 674, 168 (2009)

A.M.Hurst, C.Y.Wu, J.A.Becker, M.A.Stoyer, C.J.Pearson, G.Hackman, M.A.Schumaker, C.E.Svensson, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, C.J.Barton, A.J.Boston, H.C.Boston, R.Churchman, D.Cline, S.J.Colosimo, D.S.Cross, G.Demand, M.Djongolov, T.E.Drake, P.E.Garrett, C.Gray-Jones, K.L.Green, A.N.Grint, A.B.Hayes, K.G.Leach, W.D.Kulp, G.Lee, S.Lloyd, R.Maharaj, J.-P.Martin, B.A.Millar, S.Mythili, L.Nelson, P.J.Nolan, D.C.Oxley, E.Padilla-Rodal, A.A.Phillips, M.Porter-Peden, S.V.Rigby, F.Sarazin, C.S.Sumithrarachchi, S.Triambak, P.M.Walker, S.J.Williams, J.Wong, J.L.Wood

Narrowing of the neutron sd-pf shell gap in 29Na

NUCLEAR REACTIONS 110Pd(29Na, 29Na'), E=70 MeV; measured Eγ, Iγ, (particle)γ-coin, charged-particle spectra following Coulomb excitation; deduced σ. 29Na; deduced B(E2). Comparison with shell model.

doi: 10.1016/j.physletb.2009.03.017
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2009SC23      Phys.Rev. C 80, 044325 (2009); Erratum Phys.Rev. C 82, 069902 (2010)

M.A.Schumaker, D.Cline, G.Hackman, C.J.Pearson, C.E.Svensson, C.Y.Wu, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, L.Buchmann, R.Churchman, F.Cifarelli, R.J.Cooper, D.S.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, A.T.Gallant, P.E.Garrett, K.L.Green, A.N.Grint, G.F.Grinyer, L.J.Harkness, A.B.Hayes, R.Kanungo, A.F.Lisetskiy, K.G.Leach, G.Lee, R.Maharaj, J.-P.Martin, F.Moisan, A.C.Morton, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, J.N.Orce, E.Padilla-Rodal, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, F.Sarazin, D.P.Scraggs, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong

Coulomb excitation of the proton-dripline nucleus 20Na

NUCLEAR REACTIONS Ti(20Na, 20Na'), E=1.7 MeV/nucleon; measured particle spectra, Eα, Eγ, Iγ, γγ-, (particle)γ-coin, angular correlations and γ-ray yield. 20Na, 48Ti; deduced levels, J, π, mixing ratios, transition matrix elements, B(M1), B(E2), and static electric quadrupole moments. Tigress and Bambino arrays at TRIUMF-ISAC facility. GOSIA analysis of Coulomb excitation data. Comparisons with shell-model calculations using the USD, USDB and p-sd effective interactions employing OXBASH shell-model code, and with results for 20F mirror nucleus.

NUCLEAR MOMENTS 20Na, 48Ti; deduced static electric quadrupole moments from Coulomb excitation experiment.

doi: 10.1103/PhysRevC.80.044325
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2009SC28      Eur.Phys.J. A 42, 477 (2009)

M.A.Schumaker, D.Cline, G.Hackman, C.Pearson, C.E.Svensson, C.Y.Wu, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, L.Buchmann, R.Churchman, F.Cifarelli, R.J.Cooper, D.S.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, A.T.Gallant, P.E.Garrett, K.L.Green, A.N.Grint, G.F.Grinyer, L.J.Harkness, A.B.Hayes, R.Kanungo, A.F.Lisetskiy, K.G.Leach, G.Lee, R.Maharaj, J-P.Martin, F.Moisan, A.C.Morton, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, J.N.Orce, E.Padilla-Rodal, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, F.Sarazin, D.P.Scraggs, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong

Coulomb excitation of radioactive 20, 21Na

NUCLEAR REACTIONS Ti(20Na, 20Na'), (21Na, 21Na'), E=1.7 MeV/nucleon; 20,21Na, 48Ti; measured Eγ, Iγ, γγ-, (particle)γ-coin, angular correlations and γ-ray yield; deduced B(E2), levels, J, π, mixing ratios, transition matrix elements. Tigress and Bambino arrays at TRIUMF-ISAC facility. GOSIA analysis of Coulomb excitation data. Comparisons with shell-model calculations using the USD, USDB and p-sd effective interactions employing OXBASH shell-model code.

doi: 10.1140/epja/i2009-10816-4
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2008FI07      Phys.Rev. C 78, 025502 (2008)

P.Finlay, G.C.Ball, J.R.Leslie, C.E.Svensson, I.S.Towner, R.A.E.Austin, D.Bandyopadhyay, A.Chaffey, R.S.Chakrawarthy, P.E.Garrett, G.F.Grinyer, G.Hackman, B.Hyland, R.Kanungo, K.G.Leach, C.M.Mattoon, A.C.Morton, C.J.Pearson, A.A.Phillips, J.J.Ressler, F.Sarazin, H.Savajols, M.A.Schumaker, J.Wong

High-precision branching ratio measurement for the superallowed β+ emitter 62Ga

RADIOACTIVITY 62Ga(β+); measured Eγ, Iγ, Eβ, βγ-coin, branching ratios; deduced ft values. 62Zn; deduced levels, J, π. 10C, 14O, 22Mg, 26mAl, 34Cl, 34Ar, 38mK, 42Sc, 46V, 50Mn, 54Co, 62Ga, 74Rb; systematics of superallowed β decays and ft values.

doi: 10.1103/PhysRevC.78.025502
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2008GR03      Phys.Rev. C 77, 015501 (2008)

G.F.Grinyer, P.Finlay, C.E.Svensson, G.C.Ball, J.R.Leslie, R.A.E.Austin, D.Bandyopadhyay, A.Chaffey, R.S.Chakrawarthy, P.E.Garrett, G.Hackman, B.Hyland, R.Kanungo, K.G.Leach, C.M.Mattoon, A.C.Morton, C.J.Pearson, A.A.Phillips, J.J.Ressler, F.Sarazin, H.Savajols, M.A.Schumaker, J.Wong

High-precision half-life determination for the superallowed β+ emitter 62Ga

RADIOACTIVITY 62Ga(β+) [from Zr(p, γ), E=500 MeV]; measured Eγ, β+ particles; deduced half-life.

doi: 10.1103/PhysRevC.77.015501
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2008LE12      Phys.Rev.Lett. 100, 192504 (2008)

K.G.Leach, C.E.Svensson, G.C.Ball, J.R.Leslie, R.A.E.Austin, D.Bandyopadhyay, C.Barton, E.Bassiachvilli, S.Ettenauer, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, D.Melconian, A.C.Morton, S.Mythili, O.Newman, C.J.Pearson, M.R.Pearson, A.A.Phillips, H.Savajols, M.A.Schumaker, J.Wong

Internal γ Decay and the Superallowed Branching Ration for the β+ Emitter 38Km

RADIOACTIVITY 38mK(β+), 38mCl(β+);measured positron spectra, Eγ, Iγ, βγ-coin, T1/2; deduced Ft for superallowed decay, comparison with other superallowed decays.

doi: 10.1103/PhysRevLett.100.192504
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2008SC18      Phys.Rev. C 78, 044321 (2008)

M.A.Schumaker, D.Cline, G.Hackman, A.C.Morton, C.J.Pearson, C.E.Svensson, C.Y.Wu, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, L.Buchmann, R.Churchman, F.Cifarelli, R.J.Cooper, D.S.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, A.T.Gallant, P.E.Garrett, K.L.Green, A.N.Grint, G.F.Grinyer, L.J.Harkness, A.B.Hayes, R.Kanungo, K.G.Leach, G.Lee, R.Maharaj, J.-P.Martin, F.Moisan, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, J.N.Orce, E.Padilla-Rodal, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, F.Sarazin, D.P.Scraggs, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong

Coulomb excitation of radioactive 21Na and its stable mirror 21Ne

NUCLEAR REACTIONS Ti(21Na, 21Na), (21Ne, 21Ne'γ), E=1.7 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin. 21Ne, 21Na, 42,46,48Ti; deduced levels, J, π, multipolarities, mixing ratios, B(E2). Coulomb excitation.

doi: 10.1103/PhysRevC.78.044321
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2007BA49      Nucl.Phys. A787, 118c (2007)

G.C.Ball, A.Andreyev, R.A.E.Austin, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, A.Chen, R.Churchman, F.Cifarelli, D.Cline, R.J.Cooper, D.S.Cross, D.Dashdorj, G.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, F.Gagon-Moisan, A.T.Gallant, P.E.Garrett, K.L.Green, A.N.Grint, G.Hackman, L.J.Harkness, A.B.Hayes, R.Kanungo, K.G.Leach, G.Lee, R.Maharaj, J.-P.Martin, A.C.Morton, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, E.Padilla-Rodal, C.J.Pearson, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, H.Savajols, F.Sarazin, M.A.Schumaker, D.P.Scraggs, C.E.Svensson, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong, C.Y.Wu

TRIUMF-ISAC Gamma-Ray Escape-Suppressed Spectrometer (TIGRESS): a versatile tool for radioactive beam physics

NUCLEAR REACTIONS Ti(21Ne, X), (20Na, X), (21Na, X), E=1.7 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin, DSA.

doi: 10.1016/j.nuclphysa.2006.12.022
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2007GA26      Acta Phys.Pol. B38, 1169 (2007)

P.E.Garrett, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, R.S.Chakrawarthy, D.Cline, R.J.Cooper, R.Churchman, D.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, F.Gagon-Miosan, A.T.Gallant, K.L.Green, A.N.Grint, G.F.Grinyer, G.Hackman, L.J.Harkness, A.B.Hayes, R.Kanungo, W.D.Kulp, K.G.Leach, G.Lee, J.R.Leslie, J.-P.Martin, C.Mattoon, W.J.Mills, A.C.Morton, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, E.Padilla-Rodal, C.J.Pearson, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, H.Savajols, F.Sarazin, M.A.Schumaker, D.P.Scraggs, H.C.Scraggs, M.D.Strange, C.E.Svensson, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong, J.L.Wood, C.Y.Wu, E.F.Zganjar

Nuclear Structure Research at TRIUMF

NUCLEAR REACTIONS Ti(20Na, 20Na'), (21Na, 21Na'), E=1.7 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation; deduced levels energies, σ, B(E2).

RADIOACTIVITY 160Yb, 160Tm(EC); measured Eγ, Iγ, eγ-coinc. Deduced levels, J, π.


2007GA30      Nucl.Instrum.Methods Phys.Res. B261, 1084 (2007)

P.E.Garrett, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, R.S.Chakrawarthy, R.Churchman, D.Cline, R.J.Cooper, D.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.Drake, P.Finlay, K.Gagnon, A.T.Gallant, K.L.Green, A.N.Grint, G.F.Grinyer, G.Hackman, L.J.Harkness, A.B.Hayes, R.Kanungo, W.D.Kulp, K.G.Leach, G.Lee, J.R.Leslie, R.Maharaj, J.-P.Martin, C.Mattoon, W.J.Mills, A.C.Morton, L.Nelson, O.Newman, P.J.Nolan, E.Padilla-Rodal, C.J.Pearson, A.A.Phillips, M.Porter-Peden, J.J.Ressler, C.Ruiz, F.Sarazin, M.A.Schumaker, D.P.Scraggs, M.D.Strange, M.Subramanian, C.E.Svensson, J.C.Waddington, J.Wan, A.Whitbeck, S.J.Williams, J.L.Wood, J.C.Wong, C.Y.Wu, E.F.Zganjar

The TRIUMF nuclear structure program and TIGRESS

doi: 10.1016/j.nimb.2007.04.258
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Note: The following list of authors and aliases matches the search parameter K.G.Leach: , K.G.LEACH