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NSR database version of May 24, 2024.

Search: Author = J.Berryman

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2023BO18      Phys.Rev. C 108, 034604 (2023)

M.Bowry, O.B.Tarasov, J.S.Berryman, V.Bader, D.Bazin, T.Chupp, H.L.Crawford, A.Gade, E.Lunderberg, A.Ratkiewicz, F.Recchia, B.M.Sherrill, D.Smalley, A.Stolz, S.R.Stroberg, D.Weisshaar, S.Williams, K.Wimmer, J.Yurkon

Abrasion-fission reactions at intermediate energies

doi: 10.1103/PhysRevC.108.034604
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2022KI08      Phys.Rev. C 105, 034318 (2022)

N.Kitamura, K.Wimmer, T.Miyagi, A.Poves, N.Shimizu, J.A.Tostevin, V.M.Bader, C.Bancroft, D.Barofsky, T.Baugher, D.Bazin, J.S.Berryman, V.Bildstein, A.Gade, N.Imai, T.Kroll, C.Langer, J.Lloyd, E.Lunderberg, F.Nowacki, G.Perdikakis, F.Recchia, T.Redpath, S.Saenz, D.Smalley, S.R.Stroberg, Y.Utsuno, D.Weisshaar, A.Westerberg

In-beam γ-ray spectroscopy of 32Mg via direct reactions

NUCLEAR REACTIONS 9Be(33Mg, n), E=99.6 MeV/nucleon; 9Be(34Si, 2p), E=94.8 MeV/nucleon; measured reaction products, Eγ, Iγ, γγ-coin; deduced inclusive and exclusive σ, momentum distribution, spectroscopic factors. 32Mg; deduced, levels, J, π, configurations, structure of ground-state rotational band. Comparison to shell-model calculations using SDPF-M, SDPF-U-MIX, EEdf1 and IMSRG interactions. Systematics of low-spin levels for N=20 isotones (32Mg, 34Si, 36S, 38Ar, 40Ca). GRETINA at NSCL-MSU.

doi: 10.1103/PhysRevC.105.034318
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021BE29      Phys.Rev. C 104, 045802 (2021)

J.M.Berryman, S.Gardner

Neutron star structure with a new force between quarks

doi: 10.1103/PhysRevC.104.045802
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2021KI09      Phys.Lett. B 822, 136682 (2021)

N.Kitamura, K.Wimmer, A.Poves, N.Shimizu, J.A.Tostevin, V.M.Bader, C.Bancroft, D.Barofsky, T.Baugher, D.Bazin, J.S.Berryman, V.Bildstein, A.Gade, N.Imai, T.Kroll, C.Langer, J.Lloyd, E.Lunderberg, F.Nowacki, G.Perdikakis, F.Recchia, T.Redpath, S.Saenz, D.Smalley, S.R.Stroberg, Y.Utsuno, D.Weisshaar, A.Westerberg

Coexisting normal and intruder configurations in 32Mg

NUCLEAR REACTIONS 9Be(33Mg, 32Mg), E=99.6 MeV/nucleon; 9Be(34Si, 32Mg), E=94.8 MeV/nucleon; measured reaction products, Eγ, Iγ. 32Mg; deduced γ-ray energies, J, π, level scheme, momentum distributions, one-neutron and two-proton knockout σ. Comparison with calculations, available data.

doi: 10.1016/j.physletb.2021.136682
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2683.


2020KI19      Phys.Rev. C 102, 054318 (2020)

N.Kitamura, K.Wimmer, N.Shimizu, V.M.Bader, C.Bancroft, D.Barofsky, T.Baugher, D.Bazin, J.S.Berryman, V.Bildstein, A.Gade, N.Imai, T.Kroll, C.Langer, J.Lloyd, E.Lunderberg, G.Perdikakis, F.Recchia, T.Redpath, S.Saenz, D.Smalley, S.R.Stroberg, J.A.Tostevin, N.Tsunoda, Y.Utsuno, D.Weisshaar, A.Westerberg

Structure of 30Mg explored via in-beam γ-ray spectroscopy

NUCLEAR REACTIONS 9Be(31Mg, 30Mg), E=97.9 MeV; 9Be(32Mg, 30Mg), E=99.1 MeV; 9Be(34Si, 30Mg), E=94.8 MeV; 9Be(35P, 30Mg), E=102.3 MeV, [secondary beams from 9Be(48Ca, X), E=140 MeV/nucleon, followed by separation of fragments using A1900 separator for beam purification at NSCL-MSU facility]; measured reaction products using S800 spectrometer, Eγ, Iγ, γγ-coin, Doppler-corrected add-back γ-ray spectra using the Gamma-Ray Energy Tracking In-beam Nuclear Array (GRETINA) of seven modules, each module housing four HPGe crystals. 30Mg; deduced levels, J, π, population σ of levels, spectroscopic factors, parallel momentum distributions; calculated T-plots in (Q0, Q2) plane. Comparison with shell-model calculations using the SDPF-M and EEdf1 interactions for all states. Systematics of low-energy levels in 30Mg, 32Si, 34S, 36Ar, 38Ca. Relevance to "island of inversion".

doi: 10.1103/PhysRevC.102.054318
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2018MO30      Phys.Lett. B 787, 198 (2018)

C.Morse, H.Iwasaki, A.Lemasson, A.Dewald, T.Braunroth, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, C.M.Campbell, A.Gade, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, F.Recchia, D.Smalley, S.R.Stroberg, R.Wadsworth, C.Walz, D.Weisshaar, A.Westerberg, K.Whitmore, K.Wimmer

Lifetime measurement of the 2+1 state in 74Rb and isospin properties of quadrupole transition strengths at N=Z

NUCLEAR REACTIONS 9Be(74Kr, 74Rb), E=93 MeV/nucleon; measured reaction products, Eγ, Iγ. 74Rb; deduced γ-ray energies, J, π, level lifetimes, B(E2). Recoil Distance Doppler Shift (RDDS) technique.

doi: 10.1016/j.physletb.2018.10.064
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016CE01      Phys.Rev. C 93, 021601 (2016)

G.Cerizza, A.Ayres, K.L.Jones, R.Grzywacz, A.Bey, C.Bingham, L.Cartegni, D.Miller, S.Padgett, T.Baugher, D.Bazin, J.S.Berryman, A.Gade, S.McDaniel, A.Ratkiewicz, A.Shore, S.R.Stroberg, D.Weisshaar, K.Wimmer, R.Winkler, S.D.Pain, K.Y.Chae, J.A.Cizewski, M.E.Howard, J.A.Tostevin

Structure of 107Sn studied through single-neutron knockout reactions

NUCLEAR REACTIONS 9Be(108Sn, 107Sn), (106Sn, 105Sn), E=80 MeV/nucleon, [secondary 106,108Sn beams from 9Be(124Xe, X), E=140 MeV/nucleon primary reaction using A1900 separator at NSCL-MSU]; measured yields of reaction products, Eγ, Iγ, (107Sn)γ-coin, momentum distributions, cross sections using CAESAR array of 192 CsI(Na) crystals for γ rays and particle identification by TOF, ΔE-E measured in the S800 focal-plane ion chamber. 107Sn; deduced levels, J, π. Comparison of experimental momentum distribution with eikonal model reaction calculations for neutron removal. Shell-model calculations of cross sections and spectroscopic factors. 105Sn; see 2015Jo03 (reference 20 in present paper) for experimental results.

doi: 10.1103/PhysRevC.93.021601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2210. Data from this article have been entered in the XUNDL database. For more information, click here.


2016GA07      Phys.Rev. C 93, 031601 (2016)

A.Gade, J.A.Tostevin, V.Bader, T.Baugher, D.Bazin, J.S.Berryman, B.A.Brown, D.J.Hartley, E.Lunderberg, F.Recchia, S.R.Stroberg, Y.Utsuno, D.Weisshaar, K.Wimmer

One-neutron pickup into 49Ca: Bound neutron g9/2 spectroscopic strength at N=29

NUCLEAR REACTIONS 12C(48Ca, 49Ca), E=140 MeV/nucleon; measured Eγ, Iγ, (49Ca)γ-coin, γ(θ), neutron-pickup single-particle cross sections using A1900 fragment separator and GRETINA array at NSCL-MSU. Heavy-ion-induced neutron-pickup reaction. DWBA analysis. 49Ca; deduced levels, J, π, multipolarity, spectroscopic factors. Comparison with full sd+pf+sdg valence-space shell-model calculations.

doi: 10.1103/PhysRevC.93.031601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2216. Data from this article have been entered in the XUNDL database. For more information, click here.


2016GA14      Phys.Rev. C 93, 054315 (2016)

A.Gade, J.A.Tostevin, V.Bader, T.Baugher, D.Bazin, J.S.Berryman, B.A.Brown, C.Aa.Diget, T.Glasmacher, D.J.Hartley, E.Lunderberg, S.R.Stroberg, F.Recchia, A.Ratkiewicz, D.Weisshaar, K.Wimmer

Single-particle structure at N=29: The structure of 47Ar and first spectroscopy of 45S

NUCLEAR REACTIONS 9Be(48K, 47Ar), E=87.5 MeV/nucleon; 12C(46Ar, 47Ar), E=67 MeV/nucleon; 9Be(46Cl, 45S), [secondary 48K, 46Ar and 46Cl beams from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction using A1900 fragment separator at NSCL-MSU]; measured particle identification spectra, Eγ, Iγ, γγ-coin using S800 spectrograph and SeGA array of 32-fold segmented HPGe detectors. 45S, 47Ar; deduced levels, J, π, σ. Detailed calculations for cross sections and spectroscopic factors using Eikonal dynamics for proton-removal, DWBA for neutron pickup, and SDPF-U and SDPF-MU shell-model interactions.

doi: 10.1103/PhysRevC.93.054315
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016LO10      Phys.Rev. C 94, 024340 (2016)

C.Loelius, H.Iwasaki, B.A.Brown, M.Honma, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, T.Braunroth, C.M.Campbell, A.Dewald, A.Gade, N.Kobayashi, C.Langer, I.Y.Lee, A.Lemasson, E.Lunderberg, C.Morse, F.Recchia, D.Smalley, S.R.Stroberg, R.Wadsworth, C.Walz, D.Weisshaar, A.Westerberg, K.Whitmore, K.Wimmer

Lifetime measurement of the 4+1 state of 58Ni with the recoil distance method

NUCLEAR REACTIONS 9Be(74Kr, 58Ni), E=93 MeV/nucleon, [secondary 74Kr beam from 9Be(78Kr, X), E=150 MeV/nucleon]; measured reaction products, Eγ, Iγ, (58Ni ions)γ-coin, half-life of the first 4+ state in 58Ni by recoil distance Doppler shift method using Triple Plunger for Exotic Beams (TRIPLEX) coupled with GRETINA array and the S800 spectrograph at NSCL-MSU facility. 58Ni; deduced level, B(E2) for the first 4+ state. Comparison with GXPF1A shell-model calculations, and with previous measurements.

doi: 10.1103/PhysRevC.94.024340
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016LU14      Phys.Rev. C 94, 064327 (2016)

E.Lunderberg, A.Gade, V.Bader, T.Baugher, D.Bazin, J.S.Berryman, B.A.Brown, D.J.Hartley, F.Recchia, S.R.Stroberg, D.Weisshaar, K.Wimmer

In-beam γ-ray spectroscopy of 38-42S

NUCLEAR REACTIONS 12C(46Ar, X)40S/41S/42S/43S, E=67.0 MeV/nucleon; 12C(48Ca, X)38S/39S/40S, E=66.7 MeV/nucleon, [secondary 46Ar beam from 9Be(48Ca, X) primary reaction]; measured particle identification spectra, yields using A1900 fragment separator and S800 spectrograph, Eγ, Iγ, γγ-coin, (particle)γ-coin using GRETINA array at NSCL-MSU facility. 38,39,40,41,42,43S; deduced levels, J, π, estimated half-life of 6+ state in 38S; calculated shell model (SDPF-MU) neutron p3/2 occupancies for the 0+ and 2+ states in 38,40,42,44S. Comparison with large-scale shell-model calculations with the SDPF-MU effective interaction for the sd-pf shell using NUSHELLX code.

doi: 10.1103/PhysRevC.94.064327
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016MI05      Phys.Rev. C 93, 024318 (2016)

S.A.Milne, M.A.Bentley, E.C.Simpson, P.Dodsworth, T.Baugher, D.Bazin, J.S.Berryman, A.M.Bruce, P.J.Davies, C.Aa.Diget, A.Gade, T.W.Henry, H.Iwasaki, A.Lemasson, S.M.Lenzi, S.McDaniel, D.R.Napoli, A.J.Nichols, A.Ratkiewicz, L.Scruton, S.R.Stroberg, J.A.Tostevin, D.Weisshaar, K.Wimmer, R.Winkler

Mirrored one-nucleon knockout reactions to the TZ = ±3/2 A=53 mirror nuclei

NUCLEAR REACTIONS 9Be(54Ni, 53Ni), (54Fe, 53Mn), E=87 MeV/nucleon, [secondary 54Ni and 54Fe beams from 9Be(58Ni, X), E=160 MeV/nucleon primary reaction]; measured Eγ, Iγ, (particle)γ-coin, level half-lives by Doppler line-shape analysis, relative cross sections for one-neutron and one-proton knockout reactions using A1900 fragment separator, S800 spectrograph and SeGA array at NSCL-MSU. 53Ni, 53Mn; deduced levels, J, π, B(M1), B(E2), mirror-energy differences (MED) between isobaric analog states. Comparison with shell-model calculations by including a set of isovector isospin-nonconserving matrix elements.

doi: 10.1103/PhysRevC.93.024318
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016MI17      Phys.Rev.Lett. 117, 082502 (2016)

S.A.Milne, M.A.Bentley, E.C.Simpson, T.Baugher, D.Bazin, J.S.Berryman, A.M.Bruce, P.J.Davies, C.Aa.Diget, A.Gade, T.W.Henry, H.Iwasaki, A.Lemasson, S.M.Lenzi, S.McDaniel, D.R.Napoli, A.J.Nichols, A.Ratkiewicz, L.Scruton, S.R.Stroberg, J.A.Tostevin, D.Weisshaar, K.Wimmer, R.Winkler

Isospin Symmetry at High Spin Studied via Nucleon Knockout from Isomeric States

NUCLEAR REACTIONS 9Be(53Co, n)52Co, E=77 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, relative σ, high-spin isomeric states.

doi: 10.1103/PhysRevLett.117.082502
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2016RE20      Phys.Rev. C 94, 054324 (2016)

F.Recchia, D.Weisshaar, A.Gade, J.A.Tostevin, R.V.F.Janssens, M.Albers, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, B.A.Brown, C.M.Campbell, M.P.Carpenter, J.Chen, C.J.Chiara, H.L.Crawford, C.R.Hoffman, F.G.Kondev, A.Korichi, C.Langer, T.Lauritsen, S.N.Liddick, E.Lunderberg, S.Noji, C.Prokop, S.R.Stroberg, S.Suchyta, K.Wimmer, S.Zhu

Neutron single-particle strengths at N=40, 42: Neutron knockout from 68, 70Ni ground and isomeric states

NUCLEAR REACTIONS 9Be(68Ni, 67Ni), E=85 MeV/nucleon; 9Be(70Ni, 69Ni), E=74 MeV/nucleon, [secondary 68,70Ni beams from 9Be(82Se, X), E=140 MeV/nucleon, followed by separation of fragments using A1900 separator at NSCL-MSU]; measured particle spectra, Eγ, Iγ, one-neutron knockout σ for levels in the final nuclei, (67Ni or 69Ni)γ-coin, parallel momentum distributions, delayed γ from isomers using GRETINA array for γ detection and S800 spectrograph for particle analysis. 67,69Ni; measured levels, J, π, l-transfers. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.94.054324
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Data from this article have been entered in the XUNDL database. For more information, click here.


2015BR10      Phys.Rev. C 92, 034306 (2015)

T.Braunroth, A.Dewald, H.Iwasaki, S.M.Lenzi, M.Albers, V.M.Bader, T.Baugher, T.Baumann, D.Bazin, J.S.Berryman, C.Fransen, A.Gade, T.Ginter, A.Gottardo, M.Hackstein, J.Jolie, A.Lemasson, J.Litzinger, S.Lunardi, T.Marchi, V.Modamio, C.Morse, D.R.Napoli, A.Nichols, F.Recchia, S.R.Stroberg, R.Wadsworth, D.Weisshaar, K.Whitmore, K.Wimmer

Reduced transition strengths of low-lying yrast states in chromium isotopes in the vicinity of N=40

NUCLEAR REACTIONS 9Be(59Mn, 58Cr), E=92.1 MeV/nucleon; 9Be(61Mn, 60Cr), E=91.9 MeV/nucleon; 9Be(63Mn, 62Cr), E=98 MeV/nucleon, [secondary 59,61,63Mn beams from 9Be(82Se, X), E=140 MeV/nucleon primary reaction using A1900 separator at NSCL-MSU]; measured Eγ, Iγ, beam-like recoil particle spectra and yields, (particle)γ-coin, level half-lives by recoil-distance Doppler-shift (RDDS) method using S800 spectrograph and SeGA array. 58,60,62Cr; deduced levels, J, π, B(E2), intrinsic quadrupole moments Q0 and deformation parameter β2. Comparison with calculations using shell-model with LNPS interactions, realistic shell-model, and IBM-2. Systematics of energies and B(E2) for first 2+ states in N=22-52, Ti, Cr, Fe, Ni, Se and Kr nuclei. Systematics of ratios of energies and B(E2) values for first 2+, 4+ and 6+ states in 52,54,56,58,60,62Cr, and E(5) limit.

doi: 10.1103/PhysRevC.92.034306
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2015CH25      Phys.Rev. C 91, 044309 (2015)

C.J.Chiara, D.Weisshaar, R.V.F.Janssens, Y.Tsunoda, T.Otsuka, J.L.Harker, W.B.Walters, F.Recchia, M.Albers, M.Alcorta, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, P.F.Bertone, C.M.Campbell, M.P.Carpenter, J.Chen, H.L.Crawford, H.M.David, D.T.Doherty, A.Gade, C.R.Hoffman, M.Honma, F.G.Kondev, A.Korichi, C.Langer, N.Larson, T.Lauritsen, S.N.Liddick, E.Lunderberg, A.O.Macchiavelli, S.Noji, C.Prokop, A.M.Rogers, D.Seweryniak, N.Shimizu, S.R.Stroberg, S.Suchyta, Y.Utsuno, S.J.Williams, K.Wimmer, S.Zhu

Identification of deformed intruder states in semi-magic 70Ni

NUCLEAR REACTIONS 208Pb(70Zn, X)70Ni, E=440 MeV; measured Eγ, Iγ, prompt- and delayed-γ spectra, γγ-coin, γγ(θ) using Gammasphere array at ATLAS-ANL facility. 9Be(82Se, X)70Ni, E=140 MeV/nucleon; measured Eγ, Iγ, (70Ni)γ-, γγ-coin, prompt and delayed γ rays using S800 spectrograph, GRETINA and CsI(Na) arrays at NSCL-MSU facility. 70Ni; deduced levels, J, π. Comparison with Monte Carlo shell-model calculations.

NUCLEAR STRUCTURE 68,70Ni, 92Mo; calculated levels, J, π, potential-energy surface contours in (Q2, Q4) plane. Shell-model using jj44bpn, jj44pna, JUN45, and JUN45 effective interactions, and Monte Carlo shell-model with A3DA interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.044309
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Data from this article have been entered in the XUNDL database. For more information, click here.


2015HE22      Phys.Rev. C 92, 024315 (2015)

T.W.Henry, M.A.Bentley, R.M.Clark, P.J.Davies, V.M.Bader, T.Baugher, D.Bazin, C.W.Beausang, J.S.Berryman, A.M.Bruce, C.M.Campbell, H.L.Crawford, M.Cromaz, P.Fallon, A.Gade, J.Henderson, H.Iwasaki, D.G.Jenkins, I.Y.Lee, A.Lemasson, S.M.Lenzi, A.O.Macchiavelli, D.R.Napoli, A.J.Nichols, S.Paschalis, M.Petri, F.Recchia, J.Rissanen, E.C.Simpson, S.R.Stroberg, R.Wadsworth, D.Weisshaar, A.Wiens, C.Walz

Triplet energy differences and the low lying structure of 62Ga

NUCLEAR REACTIONS 9Be(64Ga, 62Ga), (65Ge, 62Ga), E not given, [secondary 64Ga and 65Ge beams extracted using A1900 separator from 9Be(78Kr, X), E=150 MeV/nucleon primary reaction]; measured Eγ, Iγ, 62Ga particle spectra, (62Ga)γ-, γγ-coin using Gamma-Ray Energy Tracking In-Beam Nuclear Array (GRETINA) for γ rays and S800 spectrograph and cathode readout drift chambers for particles at NSCL-MSU facility. 62Ga; deduced levels populated by 2n and 1p2n knockout reactions, J, π, isospin using triplet energy differences (TED) as guide. Comparison with shell-model predictions of low lying T=0 and T=1 states using ANTOINE and LNPS interactions. Cross section calculations for the knockout process.

COMPILATION A=22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 74; reviewed systematics of triplet energy differences (TED) for the known T=1, 2+ states.

doi: 10.1103/PhysRevC.92.024315
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2015JO03      Acta Phys.Pol. B46, 537 (2015)

K.L.Jones, S.Ahn, J.M.Allmond, A.Ayres, D.W.Bardayan, T.Baugher, D.Bazin, J.S.Berryman, A.Bey, C.Bingham, L.Cartegni, G.Cerizza, K.Y.Chae, J.A.Cizewski, A.Gade, A.Galindo-Uribarri, R.F.Garcia Ruiz, R.Grzywacz, M.E.Howard, R.L.Kozub, J.F.Liang, B.Manning, M.MatoS, S.McDaniel, D.Miller, C.D.Nesaraja, P.D.O'Malley, S.Padgett, E.Padilla-Rodal, S.D.Pain, S.T.Pittman, D.C.Radford, A.Ratkiewicz, K.T.Schmitt, A.Shore, M.S.Smith, D.W.Stracener, S.R.Stroberg, J.Tostevin, R.L.Varner, D.Weisshaar, K.Wimmer, R.Winkler

Recent Direct Reaction Experimental Studies with Radioactive Tin Beams

doi: 10.5506/APhysPolB.46.537
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2015NI01      Phys.Rev. C 91, 014319 (2015)

A.J.Nichols, R.Wadsworth, M.A.Bentley, P.J.Davies, J.Henderson, D.G.Jenkins, I.Paterson, H.Iwasaki, A.Lemasson, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, A.Gade, C.Morse, S.R.Stroberg, D.Weisshaar, K.Whitmore, K.Wimmer, G.de Angelis, A.Dewald, T.Braunroth, C.Fransen, M.Hackstein, D.Miller

Spectroscopy and lifetime measurements in 66Ge, 69Se, and 65Ga using fragmentation reactions

NUCLEAR REACTIONS 9Be(70Se, 66Ge), (70Se, 69Se), (70Se, 65Ga), (69As, 65Ga), E not given, [secondary 70Se and 69As beams from 9Be(78Kr, X), E=150 MeV/nucleon fragmentation reaction]; measured Eγ, Iγ, level half-lives by γ line-shape method at NSCL-MSU Coupled Cyclotron facility. 65Ga, 66Ge, 69Se; deduced levels, J, π, B(M1), B(E2). Comparison with shell-model calculations using GXPF1A interaction in the fp model space.

doi: 10.1103/PhysRevC.91.014319
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2015SM03      Phys.Rev. C 92, 064314 (2015)

D.Smalley, H.Iwasaki, P.Navratil, R.Roth, J.Langhammer, V.M.Bader, D.Bazin, J.S.Berryman, C.M.Campbell, J.Dohet-Eraly, P.Fallon, A.Gade, C.Langer, A.Lemasson, C.Loelius, A.O.Macchiavelli, C.Morse, J.Parker, S.Quaglioni, F.Recchia, S.R.Stroberg, D.Weisshaar, K.Whitmore, K.Wimmer

Lifetime measurements of 17C excited states and three-body and continuum effects

NUCLEAR REACTIONS 9Be(18C, 17C), E=74.2 MeV/nucleon, [secondary 18C beam from 9Be(22Ne, X), E=120 MeV/nucleon primary reaction using A1900 fragment separator at NSCL-MSU]; measured one-neutron knockout reaction products, Eγ, Iγ, (particle)γ-coin using GRETINA array for γ rays, and S800 spectrograph for particles, level half-lives using RDM method and a plunger device. 17C; deduced levels, J, π, B(M1). Comparison with importance-truncated no-core shell model (IT-NCSM), and importance-truncated no-core shell model with continuum (IT-NCSMC) calculations.

doi: 10.1103/PhysRevC.92.064314
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2015ST06      Phys.Rev. C 91, 041302 (2015)

S.R.Stroberg, A.Gade, J.A.Tostevin, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, B.A.Brown, C.M.Campbell, K.W.Kemper, C.Langer, E.Lunderberg, A.Lemasson, S.Noji, T.Otsuka, F.Recchia, C.Walz, D.Weisshaar, S.Williams

Neutron single-particle strength in silicon isotopes: Constraining the driving forces of shell evolution

NUCLEAR REACTIONS 9Be(36Si, 35Si), E=100 MeV/nucleon; 9Be(38Si, 37Si), E=95 MeV/nucleon; 9Be(40Si, 39Si), E=85 MeV/nucleon, [secondary 36,38,40Si beams from fragmentation of 48Ca]; measured Eγ, Iγ, γγ-coin using GRETINA array at NSCL-MSU facility; deduced momentum distributions and partial cross sections of the residual nuclei following one-neutron knockout reactions. 35,37,39Si; deduced levels, intruder states, J, π, half-life of a level in 39Si. Comparison with shell-model calculations with SDPF-U and SDPF-MU interactions.

doi: 10.1103/PhysRevC.91.041302
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2015WH02      Phys.Rev. C 91, 041303 (2015)

K.Whitmore, D.Smalley, H.Iwasaki, T.Suzuki, V.M.Bader, D.Bazin, J.S.Berryman, B.A.Brown, C.M.Campbell, P.Fallon, A.Gade, C.Langer, A.Lemasson, C.Loelius, A.O.Macchiavelli, C.Morse, T.Otsuka, J.Parker, F.Recchia, S.R.Stroberg, D.Weisshaar, K.Wimmer

Magnetic response of the halo nucleus 19C studied via lifetime measurement

NUCLEAR REACTIONS 9Be, Ta(20N, 19C), E=74 MeV/nucleon, [secondary 20N beam from 9Be(22Ne, X), E=120 MeV/nucleon primary reaction]; measured reaction products using A1900 separator, Eγ, Iγ, (particle)γ-, γγ-coin, half-life of the first excited state from line-shape and recoil-distance methods using GRETINA array at NSCL-MSU facility. 19C; deduced levels, J, π, B(M1), configuration. One-neutron halo nucleus populated in one-proton knockout reaction. Comparison with shell-model calculations using several different interactions.

doi: 10.1103/PhysRevC.91.041303
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2014GA07      Phys.Rev.Lett. 112, 112503 (2014)

A.Gade, R.V.F.Janssens, D.Weisshaar, B.A.Brown, E.Lunderberg, M.Albers, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, C.M.Campbell, M.P.Carpenter, C.J.Chiara, H.L.Crawford, M.Cromaz, U.Garg, C.R.Hoffman, F.G.Kondev, C.Langer, T.Lauritsen, I.Y.Lee, S.M.Lenzi, J.T.Matta, F.Nowacki, F.Recchia, K.Sieja, S.R.Stroberg, J.A.Tostevin, S.J.Williams, K.Wimmer, S.Zhu

Nuclear Structure Towards N=40 60Ca: In-Beam γ-Ray Spectroscopy of 58, 60Ti

NUCLEAR REACTIONS Be(61V, X)58Ti/60Ti, E=90 MeV/nucleon; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced energy levels, J, π, partial σ. Comparison with calculations using GXPF1A and LNPS spectroscopic factors, GRETINA at MSU.

doi: 10.1103/PhysRevLett.112.112503
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2014IW01      Phys.Rev.Lett. 112, 142502 (2014)

H.Iwasaki, A.Lemasson, C.Morse, A.Dewald, T.Braunroth, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, C.M.Campbell, A.Gade, C.Langer, I.Y.Lee, C.Loelius, E.Lunderberg, F.Recchia, D.Smalley, S.R.Stroberg, R.Wadsworth, C.Walz, D.Weisshaar, A.Westerberg, K.Whitmore, K.Wimmer

Evolution of Collectivity in 72Kr: Evidence for Rapid Shape Transition

NUCLEAR REACTIONS 9Be(74Kr, 74Kr'), (74Kr, 72Kr'), E<150 MeV/nucleon; measured reaction products, Eγ, Iγ. 72,74Kr; deduced energy levels, B(E2) values. Comparison with theoretical calculations, available data.

doi: 10.1103/PhysRevLett.112.142502
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2014MA85      Phys.Rev.Lett. 113, 182501 (2014)

T.Marchi, G.de Angelis, J.J.Valiente-Dobon, V.M.Bader, T.Baugher, D.Bazin, J.Berryman, A.Bonaccorso, R.Clark, L.Coraggio, H.L.Crawford, M.Doncel, E.Farnea, A.Gade, A.Gadea, A.Gargano, T.Glasmacher, A.Gottardo, F.Gramegna, N.Itaco, P.R.John, R.Kumar, S.M.Lenzi, S.Lunardi, S.McDaniel, C.Michelagnoli, D.Mengoni, V.Modamio, D.R.Napoli, B.Quintana, A.Ratkiewicz, F.Recchia, E.Sahin, R.Stroberg, D.Weisshaar, K.Wimmer, R.Winkler

Quadrupole Transition Strength in the 74Ni Nucleus and Core Polarization Effects in the Neutron-Rich Ni Isotopes

NUCLEAR REACTIONS 197Au(74Ni, 74Ni'), E=95.8 MeV/nucleon; measured reaction products, Eγ, Iγ. 74Ni; deduced energy levels, B(E2). Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.113.182501
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2014MO26      Phys.Rev. C 90, 034310 (2014)

C.Morse, H.Iwasaki, A.Lemasson, T.Baugher, D.Bazin, J.S.Berryman, A.Dewald, C.Fransen, A.Gade, S.McDaniel, A.J.Nichols, A.Ratkiewicz, S.R.Stroberg, P.Voss, R.Wadsworth, D.Weisshaar, K.Wimmer, R.Winkler

Lifetime measurements of the yrast 8+ and 9+ states in 70As

NUCLEAR REACTIONS 9Be(78Rb, 70As), E=101.6 MeV/nucleon, [secondary 78Rb beam from 9Be(78Kr, X), E=150 MeV/nucleon primary reaction]; measured Doppler corrected Eγ, Iγ, γγ-, (70As)γ-coin, level half-lives by line-shape analysis using A1900 fragment separator, S-800 spectrometer, and SeGA array at NSCL-MSU facility. 70As; deduced levels, J, π, B(E1), B(M1), configuration. Comparison of B(M1) values for 66Ga, 70As, 74Br, 78Rb and 82Y with predictions of particle-vibration coupling model.

doi: 10.1103/PhysRevC.90.034310
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2014NI09      Phys.Lett. B 733, 52 (2014)

A.J.Nichols, R.Wadsworth, H.Iwasaki, K.Kaneko, A.Lemasson, G.de Angelis, V.M.Bader, T.Baugher, D.Bazin, M.A.Bentley, J.S.Berryman, T.Braunroth, P.J.Davies, A.Dewald, C.Fransen, A.Gade, M.Hackstein, J.Henderson, D.G.Jenkins, D.Miller, C.Morse, I.Paterson, E.C.Simpson, S.R.Stroberg, D.Weisshaar, K.Whitmore, K.Wimmer

Collectivity in A ∼ 70 nuclei studied via lifetime measurements in 70Br and 68, 70Se

NUCLEAR REACTIONS 9Be(71Br, 70Br'), (70Se, 68Se'), (70Se, 70Se'), E < 150 MeV/nucleon; measured reaction products, Eγ, Iγ. 70Br, 68,70Se; deduced energy levels, J, π, B(Eλ). Comparison with shell model calculations using GXPF1 nuclear interaction, available data.

doi: 10.1016/j.physletb.2014.04.016
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2014PO05      Phys.Rev. C 90, 014311 (2014)

M.Pomorski, M.Pfutzner, W.Dominik, R.Grzywacz, A.Stolz, T.Baumann, J.S.Berryman, H.Czyrkowski, R.Dabrowski, A.Fijalkowska, T.Ginter, J.Johnson, G.Kaminski, N.Larson, S.N.Liddick, M.Madurga, C.Mazzocchi, S.Mianowski, K.Miernik, D.Miller, S.Paulauskas, J.Pereira, K.P.Rykaczewski, S.Suchyta

Proton spectroscopy of 48Ni, 46Fe, and 44Cr

RADIOACTIVITY 48Ni(2p); 44Cr, 46Fe(β+p); 46Fe(β+2p); [44Cr, 46Fe, 48Ni activities from Ni(58Ni, X), E=160 MeV/nucleon]; measured Ep, Ip, half-lives of ground states of 44Cr, 46Fe, 48Ni, proton branching ratios using an optical time projection chamber (OPTC). Reconstruction of the four 2p-decay events from decay of 48Ni; deduced Q(2p). Comparison previous experimental results.

NUCLEAR REACTIONS Ni(58Ni, X)44Cr/46Fe/48Ni, E=160 MeV/nucleon; measured fragment spectra, time-of-flight, energy loss and production σ using A1900 separator and standard acquisition system at NSCL-MSU facility. LISE++ analysis. Comparison with EPAX-3 and EPAX-2.1 parametrizations.

doi: 10.1103/PhysRevC.90.014311
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2014ST18      Phys.Rev. C 90, 034301 (2014)

S.R.Stroberg, A.Gade, J.A.Tostevin, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, B.A.Brown, C.M.Campbell, K.W.Kemper, C.Langer, E.Lunderberg, A.Lemasson, S.Noji, F.Recchia, C.Walz, D.Weisshaar, S.J.Williams

Single-particle structure of silicon isotopes approaching 42Si

NUCLEAR REACTIONS 9Be(36Si, 35Si), (36Si, 35Al), E=97.7 MeV/nucleon; 9Be(38Si, 37Si), (38Si, 37Al), E=86 MeV/nucleon; 9Be(40Si, 39Si), (40Si, 39Al), E=79 MeV/nucleon, [secondary beams of 36,38,40Si produced in 9Be(48Ca, X), E=140 MeV/nucleon primary reaction]; measured Doppler-shifted γ-ray spectra, Eγ, Iγ, γγ-, (residue)γ-coin, (36Si)γ-coin using GRETINA array for γ detection and ionization chamber and plastic scintillators in the focal plane of S800 spectrograph at NSCL-MSU facility. 35,37,39Al, 35,37,39Si; deduced levels, J, π, parallel momentum distributions, l-values. 36,38,40Si; one-neutron and one-proton total and partial knockout σ, single-particle structure, and enhanced collectivity in the region of 42Si. Eikonal model analysis of parallel momentum distributions. Comparison with large-scale shell model calculations.

NUCLEAR STRUCTURE 35,37,39Al, 35,37,39Si; calculated levels, J, π using large-scale shell model with SDPF-U and SDPF-MU interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.90.034301
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2013BA57      Phys.Rev. C 88, 051301 (2013)

V.M.Bader, A.Gade, D.Weisshaar, B.A.Brown, T.Baugher, D.Bazin, J.S.Berryman, A.Ekstrom, M.Hjorth-Jensen, S.R.Stroberg, W.B.Walters, K.Wimmer, R.Winkler

Quadrupole collectivity in neutron-deficient Sn nuclei: 104Sn and the role of proton excitations

NUCLEAR REACTIONS 197Au(104Sn, 104Sn'), (102Cd, 102Cd'), [102Cd, 104Sn secondary beams from 9Be(124Xe, X), E=140 MeV/nucleon primary reaction], E=67 MeV/nucleon for 104Sn and 64 MeV/nucleon for 102Cd; measured scattered particle spectra, Eγ, Iγ, (particle)γ-coin using A1900 fragment separator, Si p-i-n detector and TOF for particles and CAESAR array of scintillation detectors for γ rays at NSCL-MSU facility. 104Sn; deduced level, B(E2) for first 2+ state relative to that for 102Cd. Comparison with previous experimental results, and with large-scale shell model calculations. Enhanced quadrupole collectivity. Systematics of B(E2) values for A=104 to 130 even-A Sn nuclei.

doi: 10.1103/PhysRevC.88.051301
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2013CR02      Phys.Rev.Lett. 110, 242701 (2013)

H.L.Crawford, R.M.Clark, P.Fallon, A.O.Macchiavelli, T.Baugher, D.Bazin, C.W.Beausang, J.S.Berryman, D.L.Bleuel, C.M.Campbell, M.Cromaz, G.de Angelis, A.Gade, R.O.Hughes, I.Y.Lee, S.M.Lenzi, F.Nowacki, S.Paschalis, M.Petri, A.Poves, A.Ratkiewicz, T.J.Ross, E.Sahin, D.Weisshaar, K.Wimmer, R.Winkler

Quadrupole Collectivity in Neutron-Rich Fe and Cr Isotopes

NUCLEAR REACTIONS Bi(66Fe, 66Fe'), (68Fe, 68Fe'), (64Cr, 64Cr'), E<130 MeV/nucleon; measured reaction products, Eγ, Iγ. 66,68Fe, 64Cr; deduced σ, B(E2). Comparison with state-of-the-art large-scale shell-model calculations within the full fpgd neutron orbital model space using the Lenzi-Nowacki-Poves-Sieja effective interaction.

doi: 10.1103/PhysRevLett.110.242701
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2013DA08      Phys.Rev.Lett. 111, 072501 (2013)

P.J.Davies, M.A.Bentley, T.W.Henry, E.C.Simpson, A.Gade, S.M.Lenzi, T.Baugher, D.Bazin, J.S.Berryman, A.M.Bruce, C.Aa.Diget, H.Iwasaki, A.Lemasson, S.McDaniel, D.R.Napoli, A.Ratkiewicz, L.Scruton, A.Shore, R.Stroberg, J.A.Tostevin, D.Weisshaar, K.Wimmer, R.Winkler

Mirror Energy Differences at Large Isospin Studied through Direct Two-Nucleon Knockout

NUCLEAR REACTIONS 9Be(54Ni, 2n), (53Co, 2n), E=87 MeV/nucleon; measured reaction products, Eγ, Iγ. 52Ni, 51Co; deduced level energies, J, π, isobaric analogue states; calculated relative σ for nonyrast and yrast states. Comparison with experimental data.

doi: 10.1103/PhysRevLett.111.072501
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2013RE18      Phys.Rev. C 88, 041302 (2013)

F.Recchia, C.J.Chiara, R.V.F.Janssens, D.Weisshaar, A.Gade, W.B.Walters, M.Albers, M.Alcorta, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, P.F.Bertone, B.A.Brown, C.M.Campbell, M.P.Carpenter, J.Chen, H.L.Crawford, H.M.David, D.T.Doherty, C.R.Hoffman, F.G.Kondev, A.Korichi, C.Langer, N.Larson, T.Lauritsen, S.N.Liddick, E.Lunderberg, A.O.Macchiavelli, S.Noji, C.Prokop, A.M.Rogers, D.Seweryniak, S.R.Stroberg, S.Suchyta, S.Williams, K.Wimmer, S.Zhu

Configuration mixing and relative transition rates between low-spin states in 68Ni

NUCLEAR REACTIONS 208Pb(70Zn, X)68Ni, E=440 MeV; measured Eγ, Iγ, (68Ni)γ-, γγ-coin, prompt and delayed γ rays, level half-life using Gammasphere array at ATLAS-ANL facility. 9Be(70Ni, X)68Ni, E=75 MeV/nucleon, [secondary 70Ni beam from 9Be(82Se, X), E=140 MeV/nucleon primary reaction]; measured Eγ, Iγ, γγ-coin, prompt and delayed γ rays, level half-life using S800 spectrograph, GRETINA and CsI(Na) arrays at NSCL-MSU facility. 68Ni; deduced levels, J, π, B(E2) ratios. Comparison with shell-model calculations using jj44pna, jj44b, JUN45, and LNPS effective interactions. Discussed configuration mixing.

doi: 10.1103/PhysRevC.88.041302
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2013TA14      Phys.Rev. C 87, 054612 (2013)

O.B.Tarasov, M.Portillo, D.J.Morrissey, A.M.Amthor, L.Bandura, T.Baumann, D.Bazin, J.S.Berryman, B.A.Brown, G.Chubarian, N.Fukuda, A.Gade, T.N.Ginter, M.Hausmann, N.Inabe, T.Kubo, J.Pereira, B.M.Sherrill, A.Stolz, C.Sumithrarachchi, M.Thoennessen, D.Weisshaar

Production cross sections from 82Se fragmentation as indications of shell effects in neutron-rich isotopes close to the drip-line

NUCLEAR REACTIONS Be, W(82Se, X), E=139 MeV/nucleon; measured fragment spectra using A1900 fragment separator at NSCL facility. Z=11, A=27-33; Z=12, A=29-37; Z=13, A=31-39; Z=14, A=29-42; Z=15, A=31-45; Z=16, A=33-48; Z=17, A=35-50; Z=18, A=38-52; Z=19, A=39-55; Z=20, A=41-58; Z=21, A=43-61; Z=22, A=46-64; Z=23, A=47-67; Z=24, A=50-70; Z=25, A=52-72; Z=26, A=54-60; Z=26, A=63-75; Z=27, A=56-62; Z=27, A=65-76; Z=28, A=60-63; Z=28, A=67-78; Z=29, A=62-65; Z=29, A=70-78; Z=30, A=64-68; Z=30, A=73-80; Z=31, A=75-81; Z=32, A=79-82; Z=33, A=81-83; measured production cross sections for 334 isotopes, and longitudinal momentum distributions for 126 isotopes. 64Ti, 67V, 69,70Cr, 72Mn, 75Fe; measured production cross sections for isotopes first identified in this study. Comparison with calculations using abrasion-ablation model. Evidence for subshell closure at N=34 around Z=20.

doi: 10.1103/PhysRevC.87.054612
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2012DI20      J.Phys.:Conf.Ser. 381, 012119 (2012)

C.A.Diget, T.Baugher, D.Bazin, M.A.Bentley, J S.Berryman, J.R.Brown, K.A.Chipps, P.J.Davies, B.R.Fulton, A.Gade, H.Iwasaki, A.M.Laird, A.Lemasson, S.McDaniel, A.Ratkiewicz, L.Scruton, A.Shore, S.R.Stroberg, D.Weisshaar, K.Wimmer, R.Winkler

Electron capture in core-collapse supernovae investigated through configuration mixing in neutron-rich nuclei

doi: 10.1088/1742-6596/381/1/012119
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2012LE05      Phys.Rev. C 85, 041303 (2012)

A.Lemasson, H.Iwasaki, C.Morse, D.Bazin, T.Baugher, J.S.Berryman, A.Dewald, C.Fransen, A.Gade, S.McDaniel, A.Nichols, A.Ratkiewicz, S.Stroberg, P.Voss, R.Wadsworth, D.Weisshaar, K.Wimmer, R.Winkler

Observation of mutually enhanced collectivity in self-conjugate 7638SR38

NUCLEAR REACTIONS 9Be(76Rb, 76Sr), E=104.5 MeV/nucleon; 9Be (78Rb, 78Sr), E=101.6 MeV/nucleon; measured time-of-flight and energy loss for outgoing particles, Eγ, Iγ, γγ-coin using SeGA array at NSCL, MSU facility, half-lives of first 2+ states by line-shape method. 76,78Rb secondary beams from 9Be(78Kr, X), E=140 MeV/nucleon primary beam. 76,78Sr; deduced levels, J, π, yrast bands, B(E2), deformation parameter. Systematics of energies and B(E2) values for first 2+ states in Z=30-40 and N=34-46 even-even nuclei. Comparison of B(E2) values with predictions from the CHFB+5DCH calculations.

doi: 10.1103/PhysRevC.85.041303
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2012LO08      Phys.Rev. C 86, 014313 (2012)

G.Lorusso, A.Becerril, A.Amthor, T.Baumann, D.Bazin, J.S.Berryman, B.A.Brown, R.H.Cyburt, H.L.Crawford, A.Estrade, A.Gade, T.Ginter, C.J.Guess, M.Hausmann, G.W.Hitt, P.F.Mantica, M.Matos, R.Meharchand, K.Minamisono, F.Montes, G.Perdikakis, J.Pereira, M.Portillo, H.Schatz, K.Smith, J.Stoker, A.Stolz, R.G.T.Zegers

β-delayed proton emission in the 100Sn region

RADIOACTIVITY 89Ru, 91,92Rh, 93Pd, 95,96,96mAg, 96,97,97mCd, 98,98m,99,100In, 100,101Sn[from 9Be(112Sn, X), E=140 MeV/nucleon](β+), (EC), (β+p); measured Eγ, Iγ, β spectra, E(p), I(p), βγ-coin, βp-coin, γβp-coin, fragment yields, half-lives, β-delayed proton emission branching ratios using NSCL Beta Counting System and SeGA array. Discussed rp-process implications. Comparison with previous studies and theoretical calculations. X-ray bursts calculations.

doi: 10.1103/PhysRevC.86.014313
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2012PO03      Acta Phys.Pol. B43, 267 (2012)

M.Pomorski, M.Pfutzner, W.Dominik, R.Grzywacz, T.Baumann, J.Berryman, H.Czyrkowski, R.Dabrowski, T.Ginter, L.Grigorenko, J.Johnson, G.Kaminski, A.Kuzniak, N.Larson, S.N.Liddick, M.Madurga, C.Mazzocchi, S.Mianowski, K.Miernik, D.Miller, S.Palauskas, J.Pereira, K.P.Rykaczewski, A.Stolz, S.Suchyta

Studies of 48Ni Using the Optical Time Projection Chamber

RADIOACTIVITY 48Ni(2p) [from Ni(58Ni, X)48Ni/46Fe/44Cr, E=160 MeV/nucleon]; measured decay products, Ep, Ip; deduced proton energy distribution, T1/2.

NUCLEAR REACTIONS Ni(58Ni, X)48Ni/46Fe/44Cr, E=160 MeV/nucleon; measured reaction products. 48Ni; deduced production σ.

doi: 10.5506/APhysPolB.43.267
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2011BE34      Phys.Rev. C 84, 041303 (2011)

A.D.Becerril, G.Lorusso, A.M.Amthor, T.Baumann, D.Bazin, J.S.Berryman, B.A.Brown, H.L.Crawford, A.Estrade, A.Gade, T.Ginter, C.J.Guess, M.Hausmann, G.W.Hitt, P.F.Mantica, M.Matos, R.Meharchand, K.Minamisono, F.Montes, G.Perdikakis, J.Pereira, M.Portillo, H.Schatz, K.Smith, J.Stoker, A.Stolz, R.G.T.Zegers

High-spin μs isomeric states in 96Ag

NUCLEAR REACTIONS 9Be(112Sn, X), E=120 MeV/nucleon; measured Eγ, Iγ, γγ-, (fragment)γγ-coin, isomer T1/2. 96Ag; deduced levels, J, π. A1900 Fragment Separator and SeGA array at NSCL. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.84.041303
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2011BE57      J.Phys.:Conf.Ser. 312, 092017 (2011)

J.S.Berryman, R.M.Clark, K.E.Gregorich, J.M.Allmond, D.L.Bleuel, R.J.Cooper, M.Cromaz, M.A.Deleplanque, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, J.M.Gates, S.Gros, O.Gothe, H.B.Jeppesen, D.Kaji, I.Y.Lee, A.O.Macchiavelli, K.Morimoto, H.Nitsche, S.Paschalis, M.Petri, J.Qian, L.Stavsetra, F.S.Stephens, M.A.Stoyer, T.J.Ross, H.Watanabe, M.Wiedeking

Nuclear spectroscopy of the heaviest elements: studies of 254No, 257Rf, and 261Sg

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E=221 MeV;208Pb(50Ti, n), E=238 MeV;208Pb(54Cr, n), E=261 MeV; measured Eγ, Iγ using HPGe, recoils using MWPC, Eα, Iα, E(e), I(e), eγ-coin. 254No, 257Rf deduced levels, J, π, γ transitions, isomeric transition T1/2, bands, 257Rf α-decay T1/2, 254No g-factor.

doi: 10.1088/1742-6596/312/9/092017
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2011LO09      Phys.Lett. B 699, 141 (2011)

G.Lorusso, A.Becerril, A.Amthor, T.Baumann, D.Bazin, J.S.Berryman, B.A.Brown, R.H.Cyburt, H.L.Crawford, A.Estrade, A.Gade, T.Ginter, C.J.Guess, M.Hausmann, G.W.Hitt, P.F.Mantica, M.Matos, R.Meharchand, K.Minamisono, F.Montes, G.Perdikakis, J.Pereira, M.Portillo, H.Schatz, K.Smith, J.Stoker, A.Stolz, R.G.T.Zegers

Half-lives of ground and isomeric states in 97Cd and the astrophysical origin of 96Ru

RADIOACTIVITY 97Cd(β+), (β+p) [from 9Be(112Sn, X), E=120 MeV/nucleon]; measured proton spectra, Eγ, Iγ; deduced evidence for a high spin isomer (25/2+), T1/2, level energies, J, π. Comparison with nuclear shell model and astrophysical overproduction factors calculations.

doi: 10.1016/j.physletb.2011.03.043
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2011NI01      Phys.Rev.Lett. 106, 052502 (2011)

S.Nishimura, Z.Li, H.Watanabe, K.Yoshinaga, T.Sumikama, T.Tachibana, K.Yamaguchi, M.Kurata-Nishimura, G.Lorusso, Y.Miyashita, A.Odahara, H.Baba, J.S.Berryman, N.Blasi, A.Bracco, F.Camera, J.Chiba, P.Doornenbal, S.Go, T.Hashimoto, S.Hayakawa, C.Hinke, E.Ideguchi, T.Isobe, Y.Ito, D.G.Jenkins, Y.Kawada, N.Kobayashi, Y.Kondo, R.Krucken, S.Kubono, T.Nakano, H.Sakurai, H.Scheit, K.Steiger, D.Steppenbeck, K.Sugimoto, H.J.Ong, S.Ota, Zs.Podolyak, S.Takano, A.Takashima, K.Tajiri, T.Teranishi, Y.Wakabayashi, P.M.Walker, O.Wieland, H.Yamaguchi

β-Decay Half-Lives of Very Neutron-Rich Kr to Tc Isotopes on the Boundary of the r-Process Path: An Indication of Fast r-Matter Flow

RADIOACTIVITY 97,98,99,100Kr(β-), 97,98,99,100,101,102Rb(β-), 101,102,103,104,105Sr, 103,104,105,106,107,108Y(β-), 108,109,110Zr(β-), 111,112Nb(β-), 112,113,114,115Mo(β-), 116,117Tc(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Ee, Ie; deduced T1/2. Comparison with FRDM+QRPA, KTUY+GT2 model calculations, astrophysical r-process path.

doi: 10.1103/PhysRevLett.106.052502
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2011PO09      Phys.Rev. C 83, 061303 (2011)

M.Pomorski, M.Pfutzner, W.Dominik, R.Grzywacz, T.Baumann, J.S.Berryman, H.Czyrkowski, R.Dabrowski, T.Ginter, J.Johnson, G.Kaminski, A.Kuzniak, N.Larson, S.N.Liddick, M.Madurga, C.Mazzocchi, S.Mianowski, K.Miernik, D.Miller, S.Paulauskas, J.Pereira, K.P.Rykaczewski, A.Stolz, S.Suchyta

First observation of two-proton radioactivity in 48Ni

RADIOACTIVITY 48Ni(2p), (β+p)[from Ni(58Ni, X), E=160 MeV/nucleon]; measured E(p), I(p), time-of-flight using optical time-projection chamber (OPTC), half-life; deduced branching ratios for the two-proton and delayed-proton decay modes. 46Fe(β+p); measured E(p), I(p).

doi: 10.1103/PhysRevC.83.061303
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2011SU11      Phys.Rev.Lett. 106, 202501 (2011)

T.Sumikama, K.Yoshinaga, H.Watanabe, S.Nishimura, Y.Miyashita, K.Yamaguchi, K.Sugimoto, J.Chiba, Z.Li, H.Baba, J.S.Berryman, N.Blasi, A.Bracco, F.Camera, P.Doornenbal, S.Go, T.Hashimoto, S.Hayakawa, C.Hinke, E.Ideguchi, T.Isobe, Y.Ito, D.G.Jenkins, Y.Kawada, N.Kobayashi, Y.Kondo, R.Krucken, S.Kubono, G.Lorusso, T.Nakano, M.Kurata-Nishimura, A.Odahara, H.J.Ong, S.Ota, Zs.Podolyak, H.Sakurai, H.Scheit, K.Steiger, D.Steppenbeck, S.Takano, A.Takashima, K.Tajiri, T.Teranishi, Y.Wakabayashi, P.M.Walker, O.Wieland, H.Yamaguchi

Structural Evolution in the Neutron-Rich Nuclei 106Zr and 108Zr

RADIOACTIVITY 106,108Zr, 104,105,106Y(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured time correlations, Eγ, Iγ; deduced first 2+ and 4+ states energies, J, π, ground state deformation in 106,108Zr, T1/2 for a new isomer in 108Zr and 106Y. Comparison with 1/E(2+) systematics for Kr, Sr, Zr, Mo, Ru, Pd, Cd, Sn isotopes.

doi: 10.1103/PhysRevLett.106.202501
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2011WA03      Phys.Lett. B 696, 186 (2011)

H.Watanabe, T.Sumikama, S.Nishimura, K.Yoshinaga, Z.Li, Y.Miyashita, K.Yamaguchi, H.Baba, J.S.Berryman, N.Blasi, A.Bracco, F.Camera, J.Chiba, P.Doornenbal, S.Go, T.Hashimoto, S.Hayakawa, C.Hinke, E.Ideguchi, T.Isobe, Y.Ito, D.G.Jenkins, Y.Kawada, N.Kobayashi, Y.Kondo, R.Krucken, S.Kubono, G.Lorusso, T.Nakano, M.Kurata-Nishimura, A.Odahara, H.J.Ong, S.Ota, Zs.Podolyak, H.Sakurai, H.Scheit, Y.Shi, K.Steiger, D.Steppenbeck, K.Sugimoto, K.Tajiri, S.Takano, A.Takashima, T.Teranishi, Y.Wakabayashi, P.M.Walker, O.Wieland, F.R.Xu, H.Yamaguchi

Low-lying level structure of the neutron-rich nucleus 109Nb: A possible oblate-shape isomer

NUCLEAR REACTIONS Be(238U, X)109Nb/109Zr, E=345 MeV/nucleon; measured fission fragments, Eγ, Iγ, β-γ-coin.; deduced level scheme, J, π, T1/2 for isomeric state in 109Nb, B(E1), B(M1), B(E2), B(M2), low-lying oblate-deformed states. Nilsson diagrams, calculation of potential energy surfaces.

doi: 10.1016/j.physletb.2010.12.028
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2011WA26      Phys.Lett. B 704, 270 (2011)

H.Watanabe, K.Yamaguchi, A.Odahara, T.Sumikama, S.Nishimura, K.Yoshinaga, Z.Li, Y.Miyashita, K.Sato, L.Prochniak, H.Baba, J.S.Berryman, N.Blasi, A.Bracco, F.Camera, J.Chiba, P.Doornenbal, S.Go, T.Hashimoto, S.Hayakawa, C.Hinke, N.Hinohara, E.Ideguchi, T.Isobe, Y.Ito, D.G.Jenkins, Y.Kawada, N.Kobayashi, Y.Kondo, R.Krucken, S.Kubono, G.Lorusso, T.Nakano, T.Nakatsukasa, M.Kurata-Nishimura, H.J.Ong, S.Ota, Zs.Podolyak, H.Sakurai, H.Scheit, K.Steiger, D.Steppenbeck, K.Sugimoto, K.Tajiri, S.Takano, A.Takashima, T.Teranishi, Y.Wakabayashi, P.M.Walker, O.Wieland, H.Yamaguchi

Development of axial asymmetry in the neutron-rich nucleus 110Mo

RADIOACTIVITY 110Nb(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, X-rays. 110Mo; deduced energy levels, J, π, quasi-γ-band state, B(e2) ratio. Comparison with general Bohr Hamiltonian method calculations, systematics of low-lying levels of even-even Mo nuclei.

NUCLEAR STRUCTURE 104,106,108,110Mo; calculated moments of inertia, potential energy surface, the nuclear landscape. General Bohr Hamiltonian method calculations.

doi: 10.1016/j.physletb.2011.09.050
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2010BE16      Phys.Rev. C 81, 064325 (2010); Publishers Note Phys.Rev. C 82, 029906 (2010)

J.S.Berryman, R.M.Clark, K.E.Gregorich, J.M.Allmond, D.L.Bleuel, M.Cromaz, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, S.Gros, I.Y.Lee, A.O.Macchiavelli, S.Paschalis, M.Petri, J.Qian, M.A.Stoyer, M.Wiedeking

Electromagnetic decays of excited states in 261Sg (Z=106) and 257Rf (Z=104)

NUCLEAR REACTIONS 208Pb(54Cr, n), E=261 MeV; 208Pb(50Ti, n), (50Ti, 2n), E=238 MeV; measured Eγ, E(ce), Eα, (recoil)(ce)(α)-, (recoil)(ce)(x ray)(α)-, (recoil)(ce)-, (recoil)(ce)(fission)-, γ(recoil)(ce)(α)-, γ(recoil)(ce)(x ray)(α)-, (recoil)(ce)(α)(α)-coin, half-lives. 257Rf, 261Sg; deduced levels, J, π, isomer, band, configurations. Comparison with calculated energy levels of 261Sg.

RADIOACTIVITY 256RF(SF); 257Rf, 261Sg(α); measured Eα, half-lives.

doi: 10.1103/PhysRevC.81.064325
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2010CL01      Phys.Lett. B 690, 19 (2010)

R.M.Clark, K.E.Gregorich, J.S.Berryman, M.N.Ali, J.M.Allmond, C.W.Beausang, M.Cromaz, M.A.Deleplanque, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, J.M.Gates, S.Gros, H.B.Jeppesen, D.Kaji, I.Y.Lee, A.O.Macchiavelli, K.Morimoto, H.Nitsche, S.Paschalis, M.Petri, L.Stavsetra, F.S.Stephens, H.Watanabe, M.Wiedeking

High-K multi-quasiparticle states in 254No

RADIOACTIVITY 254No(IT) [from 208Pb(48Ca, 2n), E=221 MeV]; measured Eγ, Iγ, γ-particle-coin.; deduced J, π, level energies, rotational bands, decay of isomer state.

doi: 10.1016/j.physletb.2010.04.079
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2010CR02      Phys.Rev. C 82, 014311 (2010)

H.L.Crawford, R.V.F.Janssens, P.F.Mantica, J.S.Berryman, R.Broda, M.P.Carpenter, N.Cieplicka, B.Fornal, G.F.Grinyer, N.Hoteling, B.P.Kay, T.Lauritsen, K.Minamisono, I.Stefanescu, J.B.Stoker, W.B.Walters, S.Zhu

β decay and isomeric properties of neutron-rich Ca and Sc isotopes

RADIOACTIVITY 53,54,55,56,57Sc, 53,54Ca(β-); 54,56Sc(IT)[from Be(76Ge, X), E=130 MeV/nucleon]; measured Eγ, Iγ, (fragment)β-, γγ-, βγ-, (fragment)βγ-coin, half-lives. 53,54,55,56,57Ti, 53,54,56Sc; deduced levels, J, π, logft, configurations. Comparison with GXPF1 shell-model calculations. 54Ti(β-); measured half-life. 54,55,56Sc(β-n); deduced %β--n.

NUCLEAR STRUCTURE 52,54,56Sc; calculated levels, J, π using GXPF1 shell-model.

NUCLEAR REACTIONS Be(76Ge, X)52Ca/53Ca/54Ca/53Sc/54Sc/55Sc/56Sc/55Ti/56Ti/57Ti/58Ti/57V/58V/59V/60V/, E=130 MeV/nucleon; measured yields.

doi: 10.1103/PhysRevC.82.014311
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2010EL06      Phys.Rev.Lett. 105, 182701 (2010)

P.A.Ellison, K.E.Gregorich, J.S.Berryman, D.L.Bleuel, R.M.Clark, I.Dragojevic, J.Dvorak, P.Fallon, C.Fineman-Sotomayor, J.M.Gates, O.R.Gothe, I.Y.Lee, W.D.Loveland, J.P.McLaughlin, S.Paschalis, M.Petri, J.Qian, L.Stavsetra, M.Wiedeking, H.Nitsche

New Superheavy Element Isotopes: 242Pu(48Ca, 5n)285114

NUCLEAR REACTIONS 242Pu(48Ca, Xn)285Fl/286Fl/287Fl/288Fl, E=256 MeV; measured reaction products, Eα, Iα; deduced σ, Q-values. Comparison with experimental values.

RADIOACTIVITY 285,286Fl, 281Cn, 277Ds, 273Hs, 269Sg(α); measured Eα; deduced Q(α). 265Rf, 282Cn(SF); measured SF decay energy.

doi: 10.1103/PhysRevLett.105.182701
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2009BE22      Phys.Rev. C 79, 064305 (2009)

J.S.Berryman, K.Minamisono, W.F.Rogers, B.A.Brown, H.L.Crawford, G.F.Grinyer, P.F.Mantica, J.B.Stoker, I.S.Towner

Doubly-magic nature of 56Ni: Measurement of the ground state nuclear magnetic dipole moment of 55Ni

RADIOACTIVITY 55Ni(β+)[from 9Be(58Ni, X), E=160 MeV/nucleon];measured β asymmetry from spin polarized 55Ni ions, deduced g-factor.

NUCLEAR MOMENTS 55Ni; measured g-factor by β-NMR method; deduced magnetic moment. 55Ni, 55Co; comparison of measured magnetic moments with shell-model calculations in full fp shell using GXPF1 interaction.

doi: 10.1103/PhysRevC.79.064305
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2009CR02      Phys.Rev. C 79, 054320 (2009)

H.L.Crawford, P.F.Mantica, J.S.Berryman, R.Broda, B.Fornal, C.R.Hoffman, N.Hoteling, R.V.F.Janssens, S.M.Lenzi, J.Pereira, J.B.Stoker, S.L.Tabor, W.B.Walters, X.Wang, S.Zhu

Low-energy structure of 61Mn populated following β decay of 61Cr

RADIOACTIVITY 61Cr(β-)[from Be(76Ge, X), E=130 MeV/nucleon]; measured Eγ, Iγ, γγ-, βγ-coin, half-life. 61Mn; deduced levels, J, π. 54,56,58,60,62Cr, 56,58,60,62,64,66,68Fe, 58,60,62,64,66,68,70Ni, 57,59,61,63Mn; level systematics and shell-model calculations.

NUCLEAR REACTIONS 9Be(76Ge, X)57Sc/58Ti/59Ti/59V/60V/60Cr/61Cr/62Cr/62Mn/63Mn, E=130 MeV/nucleon; measured yields.

doi: 10.1103/PhysRevC.79.054320
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2009CR03      Acta Phys.Pol. B40, 481 (2009)

H.L.Crawford, R.V.F.Janssens, P.F.Mantica, J.S.Berryman, R.Broda, M.P.Carpenter, B.Fornal, G.F.Grinyer, N.Hoteling, B.Kay, T.Lauritsen, K.Minamisono, I.Stefanescu, J.B.Stoker, W.B.Walters, S.Zhu

β Decay Studies of Neutron-Rich Nuclei Near 52Ca

RADIOACTIVITY 54Sc, 50K, 53Ca(β-);measured Eγ, Iγ;deduced level scheme, Jπ, isomeric transitions.

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2009ST04      Phys.Rev. C 79, 015803 (2009)

J.B.Stoker, P.F.Mantica, D.Bazin, A.Becerril, J.S.Berryman, H.L.Crawford, A.Estrade, C.J.Guess, G.W.Hitt, G.Lorusso, M.Matos, K.Minamisono, F.Montes, J.Pereira, G.Perdikakis, H.Schatz, K.Smith, R.G.T.Zegers

β-decay half-life of the rp-process waiting-point nuclide 84Mo

RADIOACTIVITY 80Y, 81Zr, 83,84Nb, 84Mo(EC), (β+) [from 9Be(124Xe, X), E=140 MeV/nucleon]; measured Eγ, (particle)-γ coin, (particle)-β coin, half-life. 64Ge, 68Se, 72Kr, 76Sr, 80Zr, 84Mo, 88Ru;systematics of half-lives and yrast states. Comparisons with QRPA predictions.

NUCLEAR REACTIONS 9Be(124Xe, X)73As/74Se/76Br/77Kr/78Rb/79Sr/80Y/81,82Zr/83Nb/84Nb/84Mo, E=140 MeV/nucleon; measured yields.

doi: 10.1103/PhysRevC.79.015803
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Note: The following list of authors and aliases matches the search parameter J.Berryman: , J.M.BERRYMAN, J.S.BERRYMAN