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NSR database version of May 24, 2024.

Search: Author = M.R.Wu

Found 8 matches.

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2023AN16      Phys.Rev. D 108, 123038 (2023)

Y.An, M.-R.Wu, G.Guo, Y.-L.Sming Tsai, Sh.-J.Huang, Y.-Zh.Fan

R-process β-decay neutrino flux from binary neutron star mergers and collapsars

doi: 10.1103/PhysRevD.108.123038
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2020FI02      Phys.Rev. C 101, 025804 (2020)

T.Fischer, G.Guo, A.A.Dzhioev, G.Martinez-Pinedo, M.-R.Wu, A.Lohs, Y.-Z.Qian

Neutrino signal from proto-neutron star evolution: Effects of opacities from charged-current-neutrino interactions and inverse neutron decay

NUCLEAR REACTIONS 1H(ν-bar, e+)n, 1n(ν, e-)p, E<100 MeV; derived expressions for medium-dependent charged-current reactions in fully inelastic kinematics, including contribution from weak magnetism; implemented weak reaction rates in the supernova model; simulated core-collapse supernova explosions and proto-neutron star (PNS) deleptonization; analyzed subsequent neutrino signal depending on the treatment of weak interactions; investigated nuclear medium dependence at the mean-field level, with the inverse neutron decay as new opacity source; calculated complete nucleosynthesis outcome from core-collapse supernova explosion simulation.

doi: 10.1103/PhysRevC.101.025804
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2020GI06      Phys.Rev. C 102, 045804 (2020)

S.A.Giuliani, G.Martinez-Pinedo, M.-R.Wu, L.M.Robledo

Fission and the r-process nucleosynthesis of translead nuclei in neutron star mergers

NUCLEAR STRUCTURE Z=85-120, N=120-250; calculated highest fission barriers, energy windows for β-delayed fission and neutron-induced fission. A=100-240; A=180-350; Z=30-100, N=65-230; calculated abundances as function of mass number and neutron numbers. A=254, Z=89-99; calculated neutron-induced fission and neutron capture stellar reaction rates at 0.64 GK. A=220-230; calculated abundances, radioactive energy emitted by β and α decays, and fission as a function of time for different ejecta conditions, ejecta heating rate as a function of time. Finite range droplet model with Thomas-Fermi (FRDM+TF), Skyrme HFB14, and Barcelona-Catania-Paris-Madrid (BCPM), energy density functional (EDF) methods.

doi: 10.1103/PhysRevC.102.045804
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2019WU03      Phys.Rev.Lett. 122, 062701 (2019)

M.-R.Wu, J.Barnes, G.Martinez-Pinedo, B.D.Metzger

Fingerprints of Heavy-Element Nucleosynthesis in the Late-Time Lightcurves of Kilonovae

RADIOACTIVITY 223Ra, 225Ac(α), 225Ra(β-), 254Cf(SF); calculated binary neutron star merger luminosity, decay heating rate.

doi: 10.1103/PhysRevLett.122.062701
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2017GI04      Acta Phys.Pol. B48, 299 (2017)

S.A.Giuliani, G.Martinez-Pinedo, L.M.Robledo, M.-R.Wu

r-process Calculations with a Microscopic Description of the Fission Process

NUCLEAR REACTIONS Z=84-120(n, f), E not given; calculated fission rates, r-process abundances using TALYS code with BCPM EDF (Barcelona-Catania-Paris-Madrid Energy Density functional) and using Panov rates, r-process abundances. Compared with Solar abundances.

RADIOACTIVITY Z=84-120(SF); calculated fission rates, r-process abundances using TALYS code with BCPM EDF (Barcelona-Catania-Paris-Madrid Energy Density functional) and using Panov rates, r-process abundances. Compared with Solar abundances.

doi: 10.5506/APhysPolB.48.299
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2017MA16      Acta Phys.Pol. B48, 641 (2017)

T.Marketin, A.Sieverding, M.-R.Wu, N.Paar, G.Martinez-Pinedo

Microscopic Calculations of β-decay Rates for r-process

COMPILATION Z=8-110; compiled contribution of first-forbidden β-decay of neutron-rich nuclei to their total β-decay rate, T1/2

RADIOACTIVITY Z=8-110(β-), (β+); calculated T1/2, β-delayed neutron multiplicity using relativistic Hartree-Bogoliubov model with spherical symmetry and D3C parameter set; deduced ratio calculated to experimental T1/2 vs experimental T1/2.

doi: 10.5506/APhysPolB.48.641
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2016KN02      Phys.Lett. B 754, 288 (2016)

R.Knobel, M.Diwisch, F.Bosch, D.Boutin, L.Chen, C.Dimopoulou, A.Dolinskii, B.Franczak, B.Franzke, H.Geissel, M.Hausmann, C.Kozhuharov, J.Kurcewicz, S.A.Litvinov, G.Martinez-Pinedo, M.Matos, M.Mazzocco, G.Munzenberg, S.Nakajima, C.Nociforo, F.Nolden, T.Ohtsubo, A.Ozawa, Z.Patyk, W.R.Plass, C.Scheidenberger, J.Stadlmann, M.Steck, B.Sun, T.Suzuki, P.M.Walker, H.Weick, M.-R.Wu, M.Winkler, T.Yamaguchi

First direct mass measurements of stored neutron-rich 129, 130, 131Cd isotopes with FRS-ESR

ATOMIC MASSES 129,130,131Cd; measured mean velocity of the stored fragments; deduced mass excess values of cadmium isotopes and uncertainties. Comparison with AME 2012 evaluation.

doi: 10.1016/j.physletb.2016.01.039
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2015ME10      Phys.Rev. C 92, 055805 (2015)

J.Mendoza-Temis, M.-R.Wu, K.Langanke, G.Martinez-Pinedo, A.Bauswein, H.-T.Janka

Nuclear robustness of the r process in neutron-star mergers

ATOMIC MASSES A=108-288; calculated r-process abundances of slow ejecta for different mass models at different phases of the evolution in neutron star mergers using three-dimensional relativistic smoothed particle hydrodynamic simulation, and extended nuclear network of 7300 nuclei from free nucleons up to 313Ds, including spontaneous, β- and neutron-induced fission, fission yield distributions from the ABLA code. Comparison with observed r-process abundances.

NUCLEAR REACTIONS 278Am(n, F); calculated fission fragment distributions as functions of charge, neutron number, and mass number for neutron using the ABLA code.

doi: 10.1103/PhysRevC.92.055805
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