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NSR database version of May 24, 2024.

Search: Author = K.A.Walsh

Found 11 matches.

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2016BA04      Phys.Rev. C 93, 014313 (2016)

T.Baugher, A.Gade, R.V.F.Janssens, S.M.Lenzi, D.Bazin, M.P.Carpenter, C.J.Chiara, A.N.Deacon, S.J.Freeman, G.F.Grinyer, C.R.Hoffman, B.P.Kay, F.G.Kondev, T.Lauritsen, E.M.Lunderberg, S.McDaniel, K.C.Meierbachtol, A.Ratkiewicz, S.R.Stroberg, K.A.Walsh, D.Weisshaar, S.Zhu

In-beam γ spectroscopy of 63Mn

NUCLEAR REACTIONS 9Be(63Mn, 63Mn'), E=84 meV/nucleon, [secondary 63Mn from 9Be(76Ge, X), E=130 MeV/nucleon primary reaction]; measured Eγ, Iγ, (63Mn)γ-, γγ-coin, level half-lives by Doppler line-shape analysis using SeGA and GRETINA arrays for γ detection, A1900 fragment separator and S-800 spectrograph at NSCL-MSU accelerator facility; recreated Doppler-corrected γ spectra. 63Mn; deduced levels, J, π, B(M1), B(E2). Comparison with large-scale shell-model calculations using different model spaces and effective interactions. Systematics of 59,61,63Mn level structures.

doi: 10.1103/PhysRevC.93.014313
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Data from this article have been entered in the XUNDL database. For more information, click here.


2012BA31      Phys.Rev. C 86, 011305 (2012), Erratum Phys.Rev. C 86, 049902 (2012)

T.Baugher, A.Gade, R.V.F.Janssens, S.M.Lenzi, D.Bazin, B.A.Brown, M.P.Carpenter, A.N.Deacon, S.J.Freeman, T.Glasmacher, G.F.Grinyer, F.G.Kondev, S.McDaniel, A.Poves, A.Ratkiewicz, E.A.McCutchan, D.K.Sharp, I.Stefanescu, K.A.Walsh, D.Weisshaar, S.Zhu

Intermediate-energy Coulomb excitation of 58, 60, 62Cr: The onset of collectivity toward N=40

NUCLEAR REACTIONS 197Au(58Cr, 58Cr'), E=81.1 MeV/nucleon; 197Au(60Cr, 60Cr'), E=81.7 MeV/nucleon; 209Bi(62Cr, 62Cr'), E=79.0 MeV/nucleon; measured scattered projectile spectra, energy loss, time-of-flight, Eγ, Iγ, (particle)γ-coin using SeGA array at NSCL facility, integrated cross section, GEANT-4 simulations. Intermediate Coulomb excitation using secondary Cr beams from 9Be(76Ge, X), E=130 MeV/nucleon primary reaction. 58,60,62Cr, 197Au; deduced levels, B(E2) of first 2+ state in Cr nuclei and a level in 197Au, ratio of neutron and proton transition matrix elements Mn/Mp. 62Cr; measured half-life of first 2+ state by Doppler shift and line-shape method. Systematics of energies and B(E2) values of first 2+ states in even-even N=22-40 Ni, Fe and Cr isotopes. Comparison with shell model calculations in the fpgd space using the state-of-the-art LNPS effective interaction.

doi: 10.1103/PhysRevC.86.011305
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1938. Data from this article have been entered in the XUNDL database. For more information, click here.


2012ME05      Phys.Rev.Lett. 108, 122501 (2012)

R.Meharchand, R.G.T.Zegers, B.A.Brown, Sam M.Austin, T.Baugher, D.Bazin, J.Deaven, A.Gade, G.F.Grinyer, C.J.Guess, M.E.Howard, H.Iwasaki, S.McDaniel, K.Meierbachtol, G.Perdikakis, J.Pereira, A.M.Prinke, A.Ratkiewicz, A.Signoracci, S.Stroberg, L.Valdez, P.Voss, K.A.Walsh, D.Weisshaar, and R.Winkler

Probing Configuration Mixing in 12Be with Gamow-Teller Transition Strengths

NUCLEAR REACTIONS Li(12B, 7Be)12Be, E=80 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), B(GT) transition strength, level energies, J, π. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.108.122501
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1910. Data from this article have been entered in the XUNDL database. For more information, click here.


2012PE16      Phys.Rev. C 86, 044329 (2012)

M.Petri, S.Paschalis, R.M.Clark, P.Fallon, A.O.Macchiavelli, K.Starosta, T.Baugher, D.Bazin, L.Cartegni, H.L.Crawford, M.Cromaz, U.Datta Pramanik, G.de Angelis, A.Dewald, A.Gade, G.F.Grinyer, S.Gros, M.Hackstein, H.B.Jeppesen, I.Y.Lee, S.McDaniel, D.Miller, M.M.Rajabali, A.Ratkiewicz, W.Rother, P.Voss, K.A.Walsh, D.Weisshaar, M.Wiedeking, B.A.Brown, C.Forssen, P.Navratil, R.Roth

Structure of 16C: Testing shell model and ab initio approaches

NUCLEAR REACTIONS 9Be(17N, X)16O, E=72 MeV/nucleon, [17N secondary beam from 9Be(22Ne, X), E=150 MeV/nucleon primary reaction]; measured Eγ, Iγ, σ, half-life of first 2+ state in 16O by RDM plunger method using SeGA array at NSCL facility. 16C; deduced levels, J, π, B(E2), spectroscopic factors and proton amplitude of first 2+ state, gamma-ray branching ratios from second 2+ state. Comparison of with shell-model calculations using three interactions.

doi: 10.1103/PhysRevC.86.044329
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Data from this article have been entered in the XUNDL database. For more information, click here.


2012VO05      Phys.Rev. C 86, 011303 (2012)

P.Voss, T.Baugher, D.Bazin, R.M.Clark, H.L.Crawford, A.Dewald, P.Fallon, A.Gade, G.F.Grinyer, H.Iwasaki, A.O.Macchiavelli, S.McDaniel, D.Miller, M.Petri, A.Ratkiewicz, W.Rother, K.Starosta, K.A.Walsh, D.Weisshaar, C.Forssen, R.Roth, P.Navratil

Excited-state transition-rate measurements in 18C

NUCLEAR REACTIONS 9Be(19Ne, p)18C, [19Ne secondary beam from 9Be(22Ne, X), E=120 MeV/nucleon primary beam], E=72 MeV/nucleon; measured time-of-flight, energy loss, Eγ, Iγ, (18C)γ-coin using SeGA array, level half-lives by RDM method using the Koln/NSCL plunger device. 18C; deduced levels, J, π, B(E2) of first two 2+ states. 14,18C; comparison of experimental values of level energies, B(E2), B(M1) and quadrupole moment of first two 2+ states with calculations using large-scale ab initio no-core shell model calculations. Inclusion of three-body forces to explain low-lying states in A=18 system.

doi: 10.1103/PhysRevC.86.011303
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Data from this article have been entered in the XUNDL database. For more information, click here.


2011FR17      J.Phys.:Conf.Ser. 312, 092025 (2011)

C.Fransen, W.Rother, H.Iwasaki, A.Dewald, T.Baugher, D.Bazin, B.A.Brown, H.L.Crawford, A.Gade, T.N.Ginter, T.Glasmacher, G.F.Grinyer, M.Hackstein, G.Ilie, J.Jolie, S.M.Lenzi, S.McDaniel, D.Miller, P.Petkov, T.Pissulla, A.Ratkiewicz, K.Starosta, C.A.Ur, P.Voss, K.A.Walsh, D.Weisshaar, K.O.Zell

Collectivity of Exotic Heavy Fe Isotopes

NUCLEAR REACTIONS 197Au(62Fe, X), E=97.8 MeV/nucleon;197Au(64Fe, X), E=95.0 MeV/nucleon;197Au(66Fe, X), E=88.3 MeV/nucleon; measured Doppler shifted Coulomb excitation Eγ, Iγ(θ=30, 1400, t); deduced B(E2), E(2+1). Compared with other data for near-by nuclei.

doi: 10.1088/1742-6596/312/9/092025
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2011GA18      Phys.Rev. C 83, 054324 (2011)

A.Gade, J.A.Tostevin, T.Baugher, D.Bazin, B.A.Brown, C.M.Campbell, T.Glasmacher, G.F.Grinyer, S.McDaniel, K.Meierbachtol, A.Ratkiewicz, S.R.Stroberg, K.A.Walsh, D.Weisshaar, R.Winkler

Inverse-kinematics one-neutron pickup with fast rare-isotope beams

NUCLEAR REACTIONS 9Be, 12C(22Mg, 23Mg), E=84 MeV/nucleon; measured Eγ, Iγ, particle spectra, γγ-, (particle)γ-coin using SeGA array, momentum distributions, angular distribution. 23Mg; deduced levels, J, π, configuration, cross sections. Single-neutron pickup reactions. CCBA analysis for the reaction mechanism. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.83.054324
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1840. Data from this article have been entered in the XUNDL database. For more information, click here.


2011PE21      Phys.Rev.Lett. 107, 102501 (2011)

M.Petri, P.Fallon, A.O.Macchiavelli, S.Paschalis, K.Starosta, T.Baugher, D.Bazin, L.Cartegni, R.M.Clark, H.L.Crawford, M.Cromaz, A.Dewald, A.Gade, G.F.Grinyer, S.Gros, M.Hackstein, H.B.Jeppesen, I.Y.Lee, S.McDaniel, D.Miller, M.M.Rajabali, A.Ratkiewicz, W.Rother, P.Voss, K.A.Walsh, D.Weisshaar, M.Wiedeking, B.A.Brown

Lifetime Measurement of the 2+1 State in 20C

NUCLEAR REACTIONS 9Be, 184W(22O, X)20C, E=101 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced lifetime, B(E2). Comparison with systematics, shell model calculations.

doi: 10.1103/PhysRevLett.107.102501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2011RO02      Phys.Rev.Lett. 106, 022502 (2011)

W.Rother, A.Dewald, H.Iwasaki, S.M.Lenzi, K.Starosta, D.Bazin, T.Baugher, B.A.Brown, H.L.Crawford, C.Fransen, A.Gade, T.N.Ginter, T.Glasmacher, G.F.Grinyer, M.Hackstein, G.Ilie, J.Jolie, S.McDaniel, D.Miller, P.Petkov, Th.Pissulla, A.Ratkiewicz, C.A.Ur, P.Voss, K.A.Walsh, D.Weisshaar, K.-O.Zell

Enhanced Quadrupole Collectivity at N=40: The Case of Neutron-Rich Fe Isotopes

NUCLEAR REACTIONS 197Au(62Fe, 62Fe'), (64Fe, 64Fe'), (66Fe, 66Fe'), E=97.8, 95, 88.3 MeV/nucleon; measured Eγ, Iγ. 62,64,66Fe; deduced lifetimes, B(E2), deformation parameters. Comparison with shell model calculations, experimental data. Secondary beams from 76Ge fragmentation.

COMPILATION Cr, Fe, Ni, Zn, Ge, Se, Kr; Compiled nuclear structure data, B(E2) values and energy of the first excited states for N=24-56.

doi: 10.1103/PhysRevLett.106.022502
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Data from this article have been entered in the XUNDL database. For more information, click here.


2010GA06      Phys.Rev. C 81, 051304 (2010)

A.Gade, R.V.F.Janssens, T.Baugher, D.Bazin, B.A.Brown, M.P.Carpenter, C.J.Chiara, A.N.Deacon, S.J.Freeman, G.F.Grinyer, C.R.Hoffman, B.P.Kay, F.G.Kondev, T.Lauritsen, S.McDaniel, K.Meierbachtol, A.Ratkiewicz, S.R.Stroberg, K.A.Walsh, D.Weisshaar, R.Winkler, S.Zhu

Collectivity at N = 40 in neutron-rich 64Cr

NUCLEAR REACTIONS 9Be(62Fe, 62Fe'), E=73.0 MeV/nucleon [62Fe secondary beam from primary reaction 9Be(76Ge, X), E=130 MeV/nucleon], 9Be(64Fe, 64Fe'), E=67.5 MeV/nucleon [64Fe secondary beam from primary reaction 9Be(76Ge, X), E=130 MeV/nucleon], 9Be(66Fe, 66Fe'), E=82.6 MeV/nucleon [66Fe secondary beam from primary reaction 9Be(76Ge, X), E=130 MeV/nucleon], 9Be(60Cr, 60Cr'), E=80.6 MeV/nucleon [60Cr secondary beam from primary reaction 9Be(76Ge, X), E=130 MeV/nucleon], 9Be(62Cr, 62Cr'), E=74.6 MeV/nucleon [62Cr secondary beam from primary reaction 9Be(76Ge, X), E=130 MeV/nucleon], 9Be(64Cr, 64Cr'), E=87.0 MeV/nucleon [64Cr secondary beam from primary reaction 9Be(76Ge, X), E=130 MeV/nucleon]; measured Eγ, Iγ, (particle)γ-coin, σ. 62,64,66Fe, 60,62,64Cr; deduced levels, J, π. Comparison with large-scale shell-model calculations in different model spaces. 9Be(76Ge, X)62Fe/64Fe/66Fe/60Cr/62Cr/64Cr/65Mn/66Mn/67Fe/69Co, E=130 MeV/nucleon; measured yields of secondary ion beams.

doi: 10.1103/PhysRevC.81.051304
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1806. Data from this article have been entered in the XUNDL database. For more information, click here.


2010GA14      Phys.Rev. C 81, 064326 (2010)

A.Gade, T.Baugher, D.Bazin, B.A.Brown, C.M.Campbell, T.Glasmacher, G.F.Grinyer, M.Honma, S.McDaniel, R.Meharchand, T.Otsuka, A.Ratkiewicz, J.A.Tostevin, K.A.Walsh, D.Weisshaar

Collectivity at N=50: 82Ge and 84Se

NUCLEAR REACTIONS 197Au(82Ge, 82Ge'), E=89.4 MeV/nucleon; 197Au(84Se, 84Se'), E=95.4 MeV/nucleon; 9Be(82Ge, 82Ge'), E=87.6 MeV/nucleon; 9Be(84Se, 84Se'), E=92 MeV/nucleon, [82Ge and 84Se secondary beams from 9Be(86Kr, X), E=140 MeV/nucleon]; measured Eγ, Iγ, σ, (particle)γ-coin; 82Ge, 84Se; deduced levels, J, B(E2), T1/2. Intermediate energy Coulomb excitation and inelastic scattering. Comparison with systematics of B(E2) values for first 2+ state in N=50 isotones for Z(even)=30-42 and even-even Ge (A=64-82) and Se (A=68-84) isotopes, and with shell-model calculations. Systematics of first 3- states in even-even Se (A=74-82) and N=50 isotones.

doi: 10.1103/PhysRevC.81.064326
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Data from this article have been entered in the XUNDL database. For more information, click here.


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