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A relativistic distorted-wave impulse-approximation model is applied to quasi-elastic neutrino-nucleus scattering. The bound state is obtained in the framework of the relativistic mean field theory and the final state interaction is taken…

核理论 · 物理学 2009-11-11 Andrea Meucci , Carlotta Giusti , Franco Davide Pacati

We address the stopping in heavy-ion induced reactions around the Fermi energy using central collisions recorded with \emph{INDRA} $4\pi$ array. The stopping is minimal around the Fermi energy and corresponds to the disappearance of the…

核实验 · 物理学 2015-06-17 Olivier Lopez

We construct the equation of state (EOS) of nuclear matter at finite temperature and density with various proton fractions within the relativistic mean field (RMF) theory for the use in the supernova simulations. The Thomas-Fermi…

核理论 · 物理学 2009-10-31 H. Shen , H. Toki , K. Oyamatsu , K. Sumiyoshi

We investigate the relativistic scattering of three identical scalar bosons interacting via pair-wise interactions. Extending techniques from the non-relativistic three-body scattering theory, we provide a detailed and general prescription…

核理论 · 物理学 2023-03-09 Sebastian M. Dawid , Md Habib E Islam , Raúl A. Briceño

We perform a calculation of dense and hot nuclear matter where the mean interaction between nucleons is described by in-medium effective fields and where we employ analytical approximations of the Fermi integrals. We generalize a previous…

核理论 · 物理学 2024-04-19 Odilon Lourenço , Mariana Dutra , Jérôme Margueron

This study evaluates the accuracy of nuclear fragmentation simulations using a quantum molecular dynamics (QMD) model based on relativistic mean field (RMF) theory for an energy range of 50-400 MeV/u, relevant to hadron therapy. A total of…

We show that chiral effective field theory (EFT) two-body currents provide important contributions to the quenching of low-momentum-transfer Gamow-Teller transitions, and use chiral EFT to predict the momentum-transfer dependence that is…

核理论 · 物理学 2015-03-19 J. Menéndez , D. Gazit , A. Schwenk

The contributions of short-range nucleon-nucleon correlations, meson exchange current (MEC) corrections and the influence of Delta isobar excitations (isobaric currents, IC) on photon induced two-nucleon knockout reactions are investigated.…

核理论 · 物理学 2007-05-23 D. Knödler , H. Müther

The similarities in the experimental indications for multinucleon mechanisms in $(\gamma,p)$ and $(e,e'p)$ processes are pointed out. For both types of reactions, the substantial role of two-nucleon emission processes for transitions to…

核理论 · 物理学 2009-10-22 J. Ryckebusch , L. Machenil , M. Vanderhaeghen , V. Van der Sluys , M. Waroquier

A model to study two-proton emission processes induced by electron scattering is developed. The process is induced by one-body electromagnetic operators acting together with short-range correlations, and by two-body $\Delta$ currents. The…

核理论 · 物理学 2008-11-26 Marta Anguiano , Giampaolo Co' , Antonio M. Lallena

The excitation of two particle-two hole final states in neutrino-nucleus scattering has been advocated by many authors as the source of the excess cross section observed by the MiniBooNE Collaboration in the quasi elastic sector. We analyse…

核理论 · 物理学 2015-08-26 Omar Benhar , Alessandro Lovato , Noemi Rocco

A construction of the Coulomb-Breit Hamiltonian for a pair of fermions, considered as a quantum two-body system, immersed in an arbitrary background gravitational field described by Einstein's General Relativity is presented. Working with…

广义相对论与量子宇宙学 · 物理学 2015-05-30 J. A. Caicedo , L. F. Urrutia

Two-Body Dirac equations of constraint dynamics provide a covariant framework to investigate the problem of highly relativistic quarks in meson bound states. This formalism eliminates automatically the problems of relative time and energy,…

高能物理 - 唯象学 · 物理学 2011-07-19 Horace W. Crater , Cheuk-Yin Wong , Peter Van Alstine

Cross sections and photon asymmetries of the exclusive 16O(\gamma,pn)14N and 16O(\gamma,pp)14C knockout reactions are calculated for transitions to the low-lying discrete final states of the residual nucleus in the photon-energy range…

核理论 · 物理学 2009-10-31 C. Giusti , F. D. Pacati

A phenomenological model of two-body current (2p2h) contribution to neutrino cross section is introduced. Predictions of the Valencia model for 2p2h are modified using recent CC0pi measurements from T2K and MINERvA experiments. Our results…

高能物理 - 实验 · 物理学 2020-07-22 Tomasz Bonus , Jan T. Sobczyk , Michał Siemaszko , Cezary Juszczak

I review results concerning the derivation of effective equations for the dynamics of interacting Fermi gases in a high-density regime of mean-field type. Three levels of effective theories, increasing in precision, can be distinguished:…

数学物理 · 物理学 2022-08-17 Niels Benedikter

Models developed within the framework of the relativistic impulse approximation for quasielastic (QE) electron and neutrino-nucleus scattering are discussed. Different descriptions of final-state interactions (FSI) in the inclusive…

核理论 · 物理学 2011-10-19 Carlotta Giusti , Andrea Meucci

We investigate the sensitivity of the medium effect in the high-density region on the nucleus-nucleus elastic scattering in the framework of the double-folding (DF) model with the complex $G$-matrix interaction. The medium effect including…

核理论 · 物理学 2015-06-22 T. Furumoto , Y. Sakuragi , Y. Yamamoto

Single-particle resonant states in spherical nuclei are studied by an analytic continuation in the coupling constant (ACCC) method within the framework of the self-consistent relativistic mean field (RMF) theory. Taking the neutron resonant…

核理论 · 物理学 2009-11-10 S. S. Zhang , J. Meng , S. G. Zhou , G. C. Hillhouse

Thomas-Fermi theory is developed to evaluate nuclear matrix elements averaged on the energy shell, on the basis of independent particle Hamiltonians. One- and two-body matrix elements are compared with the quantal results and it is…

核理论 · 物理学 2010-12-23 X. Vinas , P. Schuck , M. Farine , M. Centelles