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The neutron capture rates and temperature dependent stellar beta decay rates of Mo isotopes are investigated within the framework of the statistical code (Talys v1.96) and proton neutron quasi particle random phase approximation (pnQRPA)…

Solar and Stellar Astrophysics · Physics 2024-10-29 Abdul Kabir , Jameel-Un Nabi , Muhammad Tahir , Abdul Muneem , Zain Ul Abideen

The mergers of binary neutron stars, as well as black hole-neutron star systems, are expected to produce an electromagnetic counterpart that can be analyzed to infer the element synthesis that occurred in these events. We investigate one…

High Energy Astrophysical Phenomena · Physics 2021-01-20 Y. L. Zhu , K. Lund , J. Barnes , T. M. Sprouse , N. Vassh , G. C. McLaughlin , M. R. Mumpower , R. Surman

The structure of proton drip line nuclei in the 60 < A < 100 mass range is studied with the Relativistic Hartree Bogoliubov (RHB) model. For the elements which determine the astrophysical rapid proton capture process path, the RHB model…

Nuclear Theory · Physics 2009-11-06 G. A. Lalazissis , D. Vretenar , P. Ring

At densities between 10^8 and 10^10} g/cm^3 electron capture in a presupernova collapse is believed to mainly occur on odd-odd nuclei. We have derived the rates for six of the most important electron capturing nuclei, {54,56,58}Mn and…

Nuclear Theory · Physics 2009-10-31 K. Langanke , G. Martinez-Pinedo

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. In recent calculations the nuclear level density -- as an important ingredient to the statistical model (Hauser-Feshbach) -- has…

Astrophysics · Physics 2016-08-30 T. Rauscher , F. -K. Thielemann , K. -L. Kratz

Within the framework of the dinuclear system model, this study delves into the impact of various nuclear mass models on evaluating the fusion probability of superheavy nuclei. Nuclear mass models, as crucial inputs to the DNS model, exhibit…

Nuclear Theory · Physics 2024-02-26 Chang Geng , Peng-Hui Chen , Fei Niu , Zu-Xing Yang , Xiang-Hua Zeng , Zhao-Qing Feng

In the evaluation of weak interacting massive particles (WIMPs) detection rates, the WIMP-nucleus cross section is commonly described by using form factors extracted from charge distributions. In this work, we use different proton and…

Nuclear Theory · Physics 2012-11-09 G. Co' , V. De Donno , M. Anguiano , A. M. Lallena

We report the first calculations of nuclear properties near the drip-lines using the spherical Hartree-Fock-Bogoliubov mean-field theory with a finite-range force supplemented by continuum and particle number projection effects.…

Nuclear Theory · Physics 2008-11-26 N. Schunck , J. L. Egido

High energy photoproduction off nuclear targets is studied within the Glauber-Gribov approximation. The photon is assumed to interact as a $q\bar{q}$-system according to the Generalized Vector Dominance Model and as a ``bare photon'' in…

High Energy Physics - Phenomenology · Physics 2009-10-28 R. Engel , J. Ranft , S. Roesler

The electron capture process plays an important role in the evolution of the core collapse of a massive star that precedes the supernova explosion. In this study, the electron capture on nuclei in stellar environment is described in the…

Nuclear Theory · Physics 2021-01-04 A. Ravlic , E. Yuksel , Y. F. Niu , G. Colo , E. Khan , N. Paar

Systematics of neutron scattering cross sections on various materials for neutron energies up to several hundred MeV are important for ADSS applications. Ramsauer model is well known and widely applied to understand systematics of neutron…

Nuclear Theory · Physics 2018-02-14 S. V. Suryanarayana , H. Naik , S. Ganesan , S. Kailas , R. K. Choudhury , Guinyum Kim

Distributions of inelastically scattered neutrons can be quantum dynamically described by a scattering kernel. We present an accurate and computationally efficient rejection method for sampling a given scattering kernel of any isotropic…

Computational Physics · Physics 2019-02-20 X. X. Cai , T. Kittelmann , E. Klinkby , J. I. Márquez Damián

Uncertainties in nuclear models have a major impact on simulations that aim at understanding the origin of heavy elements in the universe through the rapid neutron capture process ($r$ process) of nucleosynthesis. Within the framework of…

Nuclear Theory · Physics 2020-05-20 T. M. Sprouse , R. Navarro Perez , R. Surman , M. R. Mumpower , G. C. McLaughlin , N. Schunck

Nonuniform neutron-rich matter present in both core-collapse supernovae and neutron-star crusts is described in terms of a semiclassical model that reproduces nuclear-matter properties and includes long-range Coulomb interactions. The…

Astrophysics · Physics 2009-11-10 C. J. Horowitz , M. A. Perez-Garcia , J. Carriere , D. K. Berry , J. Piekarewicz

Potential energy surfaces of even-even superheavy nuclei are evaluated within the macroscopic-microscopic approximation. A very rapidly converging analytical Fourier-type shape parametrization is used to describe nuclear shapes throughout…

Being able to rigorously quantify the uncertainties in reaction models is crucial to moving this field forward. Even though Bayesian methods are becoming increasingly popular in nuclear theory, they are yet to be implemented and applied in…

Nuclear Theory · Physics 2018-07-18 A. E. Lovell , F. M. Nunes

We calculate neutrino absorption rates due to charged-current reactions $\nu_e+n \rightarrow e^- + p $ and $\bar{\nu}_e+p \rightarrow e^+ + n $ in the outer regions of a newly born neutron star called the neutrino-sphere. To improve on…

Nuclear Theory · Physics 2015-04-08 Ermal Rrapaj , J. W. Holt , Alexander Bartl , Sanjay Reddy , A. Schwenk

Hadronic transport models may be utilized to extract bulk nuclear properties. Deduction of in-medium nucleon-nucleon cross sections and of nuclear viscosity is discussed, as well as the extraction of momentum dependence of nucleonic mean…

Nuclear Theory · Physics 2007-05-23 P. Danielewicz

The phenomenon of reflection-asymmetric nuclear shapes is relevant to nuclear stability, nuclear spectroscopy, nuclear decays and fission, and the search for new physics beyond the standard model. Global surveys of ground-state octupole…

Accurate neutron capture cross sections are essential for the design and operation of fast reactors using MOX fuels. For $^{242}$Pu, the Nuclear Energy Agency (NEA) recommends 8--12% accuracy in the fast energy region (2--500 keV), compared…

Nuclear Experiment · Physics 2026-01-09 J. Lerendegui-Marco , C. Guerrero , E. Mendoza , J. M. Quesada , K. Eberhardt , A. R. Junghans , V. Alcayne , V. Babiano , O. Aberle , J. Andrzejewski , L. Audouin , V. Becares , M. Bacak , J. Balibrea-Correa , M. Barbagallo , S. Barros , F. Becvar , C. Beinrucker , E. Berthoumieux , J. Billowes , D. Bosnar , M. Brugger , M. Caamaño , F. Calviño , M. Calviani , D. Cano-Ott , R. Cardella , A. Casanovas , D. M. Castelluccio , F. Cerutti , Y. H. Chen , E. Chiaveri , N. Colonna , G. Cortés , M. A. Cortés-Giraldo , L. Cosentino , L. A. Damone , M. Diakaki , M. Dietz , C. Domingo-Pardo , R. Dressler , E. Dupont , I. Durán , B. Fernández-Domínguez , A. Ferrari , P. Ferreira , P. Finocchiaro , V. Furman , K. Göbel , A. R. García , A. Gawlik , T. Glodariu , I. F. Goncalves , E. González-Romero , A. Goverdovski , E. Griesmayer , F. Gunsing , H. Harada , T. Heftrich , S. Heinitz , J. Heyse , D. G. Jenkins , E. Jericha , F. Käppeler , Y. Kadi , T. Katabuchi , P. Kavrigin , V. Ketlerov , V. Khryachkov , A. Kimura , N. Kivel , M. Kokkoris , M. Krticka , E. Leal-Cidoncha , C. Lederer-Woods , H. Leeb , S. Lo Meo , S. J. Lonsdale , R. Losito , D. Macina , J. Marganiec , T. Martínez , C. Massimi , P. Mastinu , M. Mastromarco , F. Matteucci , E. A. Maugeri , A. Mengoni , P. M. Milazzo , F. Mingrone , M. Mirea , S. Montesano , A. Musumarra , R. Nolte , A. Oprea , N. Patronis , A. Pavlik , J. Perkowski , J. I. Porras , J. Praena , K. Rajeev , T. Rauscher , R. Reifarth , A. Riego-Perez , P. C. Rout , C. Rubbia , J. A. Ryan , M. Sabaté-Gilarte , A. Saxena , P. Schillebeeckx , S. Schmidt , D. Schumann , P. Sedyshev , A. G. Smith , A. Stamatopoulos , G. Tagliente , J. L. Tain , A. Tarifeño-Saldivia , L. Tassan-Got , A. Tsinganis , S. Valenta , G. Vannini , V. Variale , P. Vaz , A. Ventura , V. Vlachoudis , R. Vlastou , A. Wallner , S. Warren , M. Weigand , C. Weiss , C. Wolf , P. J. Woods , T. Wright , P. Zugec , the n_TOF Collaboration
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