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NSR database version of April 11, 2024.

Search: Author = R.Lau

Found 7 matches.

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2023JA13      Astrophys.J. 955, 51 (2023)

R.Jain, E.F.Brown, H.Schatz, A.V.Afanasjev, M.Beard, L.R.Gasques, S.S.Gupta, G.W.Hitt, W.R.Hix, R.Lau, P.Moller, W.J.Ong, M.Wiescher, Y.Xu

Impact of Pycnonuclear Fusion Uncertainties on the Cooling of Accreting Neutron Star Crusts

NUCLEAR REACTIONS ⁴⁰Mg(⁴⁰Mg, X)⁸⁰Cr, ⁴⁴Mg(⁴⁰Mg, X)⁸⁴Cr, ⁴⁴Mg(⁴⁴Mg, X)⁸⁸Cr, ⁴⁴Mg(³⁸Ne, X)⁸²Ti, ⁴⁰Mg(³⁸Ne, X)⁷⁸Ti, ³²Ne(³²Ne, X)⁶⁴Ca, ³²Ne(³⁰Ne, X)⁶²Ca, ³⁰Ne(³⁰Ne, X)⁶⁰Ca, ⁴⁰Mg(²⁴O, X), E not given; calculated abundances, pycnonuclear fusion rates using the reaction network with the thermal evolution code dStar. ⁵⁶Fe; deduced impact of uncertainties on the depth at which nuclear heat is deposited although the total heating remains constant.

doi: 10.3847/1538-4357/acebc4
Citations: PlumX Metrics

2020LA17      J.Phys.(London) G47, 035205 (2020)

R.Lau

Sensitivity studies on the excited states of nuclei in beta decays in the r-process of neutron star mergers

RADIOACTIVITY ^194,195,196Lu(β^-); calculated stellar beta decay rates.

doi: 10.1088/1361-6471/ab6c76
Citations: PlumX Metrics

2018LA02      Nucl.Phys. A970, 1 (2018)

R.Lau

Sensitivity tests on the rates of the excited states of positron decays during the rapid proton capture process of the one-zone X-ray burst model

RADIOACTIVITY ⁶⁰Zn, ⁶⁴Ge, ⁶⁸Se, ⁷²Kr, ⁷⁶Sr, ⁸⁰Zr, ⁸⁴Mo, ⁸⁸Ru, ⁹²Pd, ⁹⁶Cd, ^{101,102,103,104,105,106}Sn, ¹⁰⁶Sb (β⁺), (EC); calculated gs T_1/2 of waiting point of rapid proton capture nuclei, estimated 1st excited state T_1/2 using one-zone X-ray burst model with and weak rates library. Compared with other calculations and available (stellar) data.

doi: 10.1016/j.nuclphysa.2017.10.009
Citations: PlumX Metrics

2018LA06      Astrophys.J. 859, 62 (2018)

R.Lau, M.Beard, S.S.Gupta, H.Schatz, A.V.Afanasjev, E.F.Brown, A.Deibel, L.R.Gasques, G.W.Hitt, W.R.Hix, L.Keek, P.Moller, P.S.Shternin, A.W.Steiner, M.Wiescher, Y.Xu

Nuclear Reactions in the Crusts of Accreting Neutron Stars

doi: 10.3847/1538-4357/aabfe0
Citations: PlumX Metrics

2018LE17      Phys.Rev. C 98, 054322 (2018)

S.M.Lenzi, M.A.Bentley, R.Lau, C.Aa.Diget

Isospin-symmetry breaking corrections for the description of triplet energy differences

NUCLEAR STRUCTURE A=18, 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66; calculated triplet energy differences (TEDs) between analog states in T=1 isobaric nuclei for various orbitals using large-scale shell model with monopole-pairing type single isotensor schematic interaction; deduced charge-independence breaking of the nuclear interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.98.054322
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2014SC01      Nature(London) 505, 62 (2014)

H.Schatz, S.Gupta, P.Moller, M.Beard, E.F.Brown, A.T.Deibel, L.R.Gasques, W.R.Hix, L.Keek, R.Lau, A.W.Steiner, M.Wiescher

Strong neutrino cooling by cycles of electron capture and β^- decay in neutron star crusts

NUCLEAR STRUCTURE ¹⁰⁵Zr; calculated single-particle energy levels, J, π, hexadecapole deformation parameters.

doi: 10.1038/nature12757
Citations: PlumX Metrics

2011ES06      Phys.Rev.Lett. 107, 172503 (2011)

A.Estrade, M.Matos, H.Schatz, A.M.Amthor, D.Bazin, M.Beard, A.Becerril, E.F.Brown, R.Cyburt, T.Elliot, A.Gade, D.Galaviz, S.George, S.S.Gupta, W.R.Hix, R.Lau, G.Lorusso, P.Moller, J.Pereira, M.Portillo, A.M.Rogers, D.Shapira, E.Smith, A.Stolz, M.Wallace, M.Wiescher

Time-of-Flight Mass Measurements for Nuclear Processes in Neutron Star Crusts

ATOMIC MASSES ^53,54,55Sc, ⁵⁷Ti, ^60,61V, ⁶³Cr, ^65,66Mn, ^67,68Fe, ^68,69,70,71Co, ⁷⁴Ni; measured time of flight; deduced masses. Stellar nucleosynthesis implications.

doi: 10.1103/PhysRevLett.107.172503
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