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Related papers: Pauli blocking and medium effects in nucleon knock…

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A recent updated version of the Lanzhou quantum molecular dynamics is reviewed, in which the momentum dependence of symmetry potential and the effective mass splitting of proton and neutron in nuclear medium are included in the model. The…

Nuclear Theory · Physics 2012-02-13 Zhao-Qing Feng

The momentum dependence of the medium modifications on nucleon-nucleon elastic cross sections is discussed with microscopic transport theories and numerically investigated with an updated UrQMD microscopic transport model. The…

Nuclear Theory · Physics 2014-11-20 Qingfeng Li , Caiwan Shen , M. Di Toro

We review the effect of hadron structure changes in a nuclear medium using the quark-meson coupling (QMC) model, which is based on a mean field description of non-overlapping nucleon (or baryon) bags bound by the self-consistent exchange of…

High Energy Physics - Phenomenology · Physics 2008-11-26 K. Saito , K. Tsushima , A. W. Thomas

The isospin splitting of the in-medium $NN\rightarrow N\Delta$ cross sections in asymmetric nuclear medium are investigated in the framework of the one-boson exchange model by including $\delta$ and $\rho$ mesons. Our results show that the…

Nuclear Theory · Physics 2021-10-12 Ying Cui , Yingxun Zhang , Yuan Tian , Zhuxia Li

Masses of hadrons (baryons as well as mesons) are modified in the nuclear medium because of their interactions. In this paper we investigate the effect of in-medium meson masses on the properties of the nuclear matter. The calculations are…

Nuclear Theory · Physics 2007-05-23 Abhijit Bhattacharya , Sanjay K. Ghosh , S. C. Phatak

Several observables of unbound nucleons which are to some extent sensitive to the medium modifications of nucleon-nucleon elastic cross sections in neutron-rich intermediate energy heavy ion collisions are investigated. The splitting effect…

Nuclear Theory · Physics 2009-11-11 Qingfeng Li , Zhuxia Li , Sven Soff , Marcus Bleicher , Horst Stoecker

The $\Delta$ decay in the nuclear medium is calculated in the relativistic meson-nucleon model. The delta spreading width is calculated and compared with the Pauli-blocked $\pi$N decay width. The influence of relativistic mean fields is…

Nuclear Theory · Physics 2008-11-26 Hungchong Kim , S. Schramm , Su Houng Lee

Nucleon-nucleon (NN) cross sections are evaluated in neutron-rich matter using a scaling model according to nucleon effective masses. It is found that the in-medium NN cross sections are not only reduced but also have a different isospin…

Nuclear Theory · Physics 2008-11-26 Bao-An Li , Lie-Wen Chen

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…

Nuclear Theory · Physics 2009-10-31 C. Giusti , F. D. Pacati

We consider the nucleon self-energy in nuclear matter in the absence of Pauli blocking. It is evaluated using the partial-wave analysis of $NN$ scattering data. Our results are compared with that of a realistic calculation to estimate the…

Nuclear Theory · Physics 2009-11-10 S. Mallik , Andreas Nyffeler , M. C. M. Rentmeester , Sourav Sarkar

We present the results of our calculation which has been performed to study the nuclear effects in the quasielastic, inelastic and deep inelastic scattering of neutrinos(antineutrinos) from nuclear targets. These calculations are done in…

Nuclear Theory · Physics 2008-08-12 M. Sajjad Athar , S. Chauhan , S. K. Singh , M. J. Vicente Vacas

The self-energy of the K^- meson in nuclear matter is calculated in a self-consistent microscopic approach, using a \bar{K}N interaction obtained from the lowest-order meson-baryon chiral Lagrangian. The effective \bar{K}N interaction in…

Nuclear Theory · Physics 2009-10-31 A. Ramos , E. Oset

To facilitate the relativistic heavy-ion calculations based on transport equations, the binary collisions involving a $\Delta$ resonance in either the entrance channel or the exit channel are investigated within a Hamiltonian formulation of…

Nuclear Theory · Physics 2008-11-26 T. -S. H. Lee

The in-medium nucleon-nucleon scattering cross section is a pivotal quantity for studying the medium effects of strong interaction, and its precise knowledge is critical for understanding the equation of state for dense matter,…

Nuclear Theory · Physics 2026-01-13 Tianyu Wang , Hui Tong , Chencan Wang , Xiaoying Qu , Sibo Wang

The three--nucleon scattering problem in a nuclear medium is considered within the Faddeev technique. In particular the deuteron break--up cross section that governs the formation and the break--up reactions of deuterons (NNN <-> Nd) in a…

Nuclear Theory · Physics 2009-10-30 M. Beyer , G. Röpke , A. Sedrakian

In this theoretical study, we establish an interrelationship between the nucleon-nucleon interaction potential and the nuclear fusion reaction cross-sections at low energies. The axially deformed self-consistent relativistic mean field with…

Nuclear Theory · Physics 2018-11-28 M. Bhuyan , Raj Kumar

Based on the Isospin-dependent Boltzmann-Uehling-Uhlenbeck (IBUU) transport model, the in-medium nucleon-nucleon inelastic scattering ( which is dominated by pion production at low and intermediate energies) is explored. It is found that…

Nuclear Theory · Physics 2021-03-31 Zong-Zhen Zhang , Ya-Fei Guo , Gao-Chan Yong

We present calculations of the N N -> N Delta cross section in nuclear matter within the one-pion exchange model taking into account pion collectivity, vertex renormalization by the contact nuclear interactions and Dirac effective masses of…

Nuclear Theory · Physics 2011-01-25 A. B. Larionov , U. Mosel

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.…

Nuclear Theory · Physics 2007-05-23 D. Knödler , H. Müther

We discuss the relevance of nuclear medium effects in the analysis of some low and medium energy neutrino reactions of current interest. In particular, we study the Quasi-Elastic (QE) process, where RPA correlations and Final State…

Nuclear Theory · Physics 2008-11-26 M. J. Vicente Vacas , L. Alvarez-Ruso , L. S. Geng , J. Nieves , M. Valverde , S. Hirenzaki