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NSR database version of April 26, 2024.

Search: Author = J.P.Entwisle

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2017TA21      Phys.Rev. C 96, 024310 (2017)

R.Talwar, B.P.Kay, A.J.Mitchell, S.Adachi, J.P.Entwisle, Y.Fujita, G.Gey, S.Noji, H.J.Ong, J.P.Schiffer, A.Tamii

High-j neutron excitations outside ¹³⁶Xe

NUCLEAR REACTIONS ¹³⁶Xe(α, ³He), E=100 MeV; measured ³He spectra and σ(θ) using Grand-Raiden (GR) magnetic spectrometer, vertical drift chambers and scintillators at RCNP-Osaka accelerator facility. Enriched ¹³⁶Xe target. ¹³⁷Xe; deduced levels, L-transfers, J, π, spectroscopic factors, configuration. DWBA calculations using different parametrizations of optical-model potentials. Discussed details and systematics of high-j, 9/2- and 13/2+ single-neutron excitations in N=83 isotones ¹³⁵Te, ¹³⁷Xe, ¹³⁹Ba, ¹⁴¹Ce, ¹⁴³Nd, ¹⁴⁵Sm, ¹⁴⁷Gd, ¹⁴⁹Dy, ¹⁵¹Er and ¹⁵³Yb, and comparison with two-level mixing model calculations.

NUCLEAR REACTIONS ¹⁴⁴Sm(α, ³He)¹⁴⁵Sm, E=100 MeV; measured reaction products; deduced absolute σ, σ(θ), outgoing ³He spectra, excitation energies, mixing matrix elements parameters, normalized spectroscopic factors.

doi: 10.1103/PhysRevC.96.024310
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2552. Data from this article have been entered in the XUNDL database. For more information, click here.

2016EN04      Phys.Rev. C 93, 064312 (2016)

J.P.Entwisle, B.P.Kay, A.Tamii, S.Adachi, N.Aoi, J.A.Clark, S.J.Freeman, H.Fujita, Y.Fujita, T.Furuno, T.Hashimoto, C.R.Hoffman, E.Ideguchi, T.Ito, C.Iwamoto, T.Kawabata, B.Liu, M.Miura, H.J.Ong, J.P.Schiffer, D.K.Sharp, G.Susoy, T.Suzuki, S.V.Szwec, M.Takaki, M.Tsumura, T.Yamamoto

Change of nuclear configurations in the neutrinoless double-β decay of ¹³⁰Te → ¹³⁰Xe and ¹³⁶Xe → ¹³⁶Ba

NUCLEAR REACTIONS ^128,130Te, ^{130,132,134,136}Xe, ^136,138Ba(d, ³He), E=101 MeV; measured Ed, Id, σ(θ) using Grand Raiden (GR) spectrometer at RCNP-Osaka cyclotron facility. ^127,129Sb, ^{129,131,133,135}I, ^135,137Cs; deduced levels, L-transfers, spectroscopic factors. DWBA and optical model analysis. ^128,130Te, ^{130,132,134,136}Xe, ^136,138Ba; deduced ground state proton occupancies. Comparison with shell-model and interacting boson-model calculations.

RADIOACTIVITY ¹³⁰Te, ¹³⁶Xe(2β^-); deduced change in the configuration of valence protons between the initial and final states in the 0νββ decay mode from measurements of the cross sections in (d, ³He) reaction, nuclear matrix elements.

doi: 10.1103/PhysRevC.93.064312
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Data from this article have been entered in the XUNDL database. For more information, click here.

2016SZ03      Phys.Rev. C 94, 054314 (2016)

S.V.Szwec, B.P.Kay, T.E.Cocolios, J.P.Entwisle, S.J.Freeman, L.P.Gaffney, V.Guimaraes, F.Hammache, P.P.McKee, E.Parr, C.Portail, J.P.Schiffer, N.de Sereville, D.K.Sharp, J.F.Smith, I.Stefan

Rearrangement of valence neutrons in the neutrinoless double-β decay of ¹³⁶Xe

NUCLEAR REACTIONS ¹³⁴Ba(d, p), E=15 MeV; ¹³⁴Ba(α, ³He), E=40.1 MeV; ¹³⁶Ba(p, d), E=23 MeV; ¹³⁴Ba(³He, α), E=32.0 MeV; measured outgoing proton, deuteron, ³He and α spectra, σ(θ) using an Enge split-pole spectrometer at the ALTO Tandem accelerator at IPN-Orsay. DWBA analysis using PTOLEMY code. ¹³⁵Ba; deduced levels, J, π. ¹³⁶Xe, ^134,136Ba; deduced ground-state neutron occupancies. Comparisons with theoretical calculations using various nuclear-structure models. Relevance to initial and final state in the 0νββ decay mode of ¹³⁶Xe.

doi: 10.1103/PhysRevC.94.054314
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2367. Data from this article have been entered in the XUNDL database. For more information, click here.