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We developed the quasi-particle random phase approximation (QRPA) for the neutrino scattering off even-even nuclei via neutral current (NC) and charged cur- rent (CC). The QRPA has been successfully applied for the \beta and \beta\beta…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Myung-Ki Cheoun , Eunja Ha , K. S. Kim , Toshitaka Kajino

We discuss the isoscalar $T=0, S=1$ pairing correlation in the low-lying states of $^{102}{\rm Sb}={}^{100}{\rm Sn}+p+n$ nucleus. To this end, we employ ${\rm core}+p+n$ three-body model with the model space constructed by self-consistent…

Nuclear Theory · Physics 2016-07-20 Yusuke Tanimura , Hiroyuki Sagawa

We introduce a new relativistic energy density functional constrained by the ground state properties of atomic nuclei along with the isoscalar giant monopole resonance energy and dipole polarizability in $^{208}$Pb. A unified framework of…

Nuclear Theory · Physics 2019-03-27 E. Yuksel , T. Marketin , N. Paar

The density dependence of the nuclear symmetry energy remains one of the key uncertainties in contemporary nuclear physics, with significant implications for the structure of exotic nuclei, the dynamics of heavy-ion collisions, and the…

Nuclear Theory · Physics 2026-05-08 S. Mallik , F. Gulminelli , C. Ciampi , D. Gruyer

An extension of the relativistic density functional approach to the equation of state for strongly interacting matter is suggested which generalizes a recently developed modified excluded-volume mechanism to the case of temperature and…

Nuclear Theory · Physics 2018-02-16 Stefan Typel , David Blaschke

The relativistic proton-neutron quasiparticle random phase approximation (PN-RQRPA) is applied in the calculation of beta-decay half-lives of neutron-rich nuclei in the $Z\approx 28$ and $Z\approx 50$ regions. The study is based on the…

Nuclear Theory · Physics 2008-11-26 T. Marketin , D. Vretenar , P. Ring

We analyze the spin-orbit coupling term in the nuclear energy density functional in terms of a zero-range NN-contact interaction and finite-range contributions from two-pion exchange. We show that the strength of the spin-orbit contact…

Nuclear Theory · Physics 2009-11-10 N. Kaiser

Compared in this work are a few sets of results, obtained from the pion-nucleon ($\pi N$) data at low energy (pion laboratory kinetic energy up to $100$ MeV) on the basis of the modelling of the $s$- and $p$-wave $K$-matrix elements (or of…

Nuclear Theory · Physics 2022-06-07 Evangelos Matsinos

We study the extension of our translationally invariant treatment of few-body nuclear systems to heavier nuclei. At the same time we also introduce state-dependent correlation operators. Our techniques are tailored to those nuclei that can…

Nuclear Theory · Physics 2009-10-30 R. Guardiola , P. I. Moliner , J. Navarro , R. F. Bishop , A. Puente , Niels R. Walet

The Quasi-Elastic (QE) contribution of the nuclear inclusive electron model developed in Nucl. Phys. A627 543 (1997) is extended to the study of neutrino/antineutrino Charged Current (CC) and Neutral Current (NC) induced nuclear reactions…

Nuclear Theory · Physics 2011-02-09 J. E. Amaro , J. Nieves , M. Valverde , M. J. Vicente-Vacas

The simple model describing charge independence and charge symmetry breaking of the pion-nucleon coupling constant is proposed. The model, which has simple physical meaning and foundation, suggests directly proportional dependence of the…

High Energy Physics - Phenomenology · Physics 2019-08-28 V. A. Babenko , N. M. Petrov

Microscopic theory of the nuclear response based on the relativistic meson-nucleon Lagrangian is applied to the description of the isoscalar giant monopole resonance (ISGMR) in a variety of nuclear systems. It is shown that the…

Nuclear Theory · Physics 2023-04-19 Elena Litvinova

In the present study, the effect of the pairing interaction and the isovector correlation between nucleons on the properties of the isobar analog resonances (IAR) in $^{112-124}$Sb isotopes and the isospin admixture in $^{100-124}$Sn…

Nuclear Theory · Physics 2008-11-26 T. Babacan , D. Salamov , A. Kucukbursa , H. Babacan , I. Maras , H. A. Aygor , A. Unal

We examine isovector and isoscalar neutron-proton correlations in an exactly solvable model based on the algebra SO(8). We look particularly closely at Gamow-Teller strength and double beta decay, both to isolate the effects of the two…

Nuclear Theory · Physics 2008-11-26 J. Engel , S. Pittel , P. Vogel , M. Stoitsov , J. Dukelsky

A cranked shell model approach for the description of rotational bands in $N\approx Z$ nuclei is formulated. The isovector neutron-proton pairing is taken into account explicitly. The concept of spontaneous breaking and subsequent…

Nuclear Theory · Physics 2009-10-31 Stefan G. Frauendorf , Javid A. Sheikh

The possibility to draw links between the isospin properties of nuclei and the structure of compact stars is a stimulating perspective. In order to pursue this objective on a sound basis, the correlations from which such links can be…

Nuclear Theory · Physics 2011-05-23 Camille Ducoin , Jérôme Margueron , Constança Providência , Isaac Vidaña

Reactive pathways to nucleation in a three-dimensional Ising model at 60% of the critical temperature are studied using transition path sampling of single spin flip Monte Carlo dynamics. Analysis of the transition state ensemble (TSE)…

Statistical Mechanics · Physics 2007-05-23 Albert C. Pan , David Chandler

We have studied the isoscalar giant quadruple resonance (ISGQR) and the isovector giant dipole resonance (IVGDR) in $^{208}$Pb based on an improved isospin-dependent Boltzmann-Uehling-Uhlenbeck transport approach using an improved isospin-…

Nuclear Theory · Physics 2020-08-07 Jun Xu , Wen-Tao Qin

Nuclear effective interactions are useful tools in astrophysical applications especially if one can guide the extrapolations to the extremes regions of isospin and density that are required to simulate dense, neutron-rich systems. Isospin…

Nuclear Theory · Physics 2010-12-02 F. J. Fattoyev , C. J. Horowitz , J. Piekarewicz , G. Shen

A selfconsistent approach based on a deformed HF+BCS+QRPA method with density-dependent Skyrme forces is used to describe beta+ decay properties in even-even deformed proton rich nuclei. Residual spin-isospin forces are included in the…

Nuclear Theory · Physics 2009-11-07 P. Sarriguren , E. Moya de Guerra , A. Escuderos