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The properties of vector mesons in nuclear matter are discussed. Results for the momentum dependence of the $\rho$-meson self energy in matter due to $\rho N$ interactions are presented, and consequences for the production rate of $e^+e^-$…

Nuclear Theory · Physics 2009-09-25 B. Friman

The coherent $\omega$-meson photoproduction from nuclei is proposed as a phenomenological method to evaluate the momentum dependence of $\omega$-meson mass shift and width in nuclear matter. We analyze available data on un-separated…

Nuclear Theory · Physics 2007-05-23 A. Sibirtsev , Ch. Elster , J. Speth

We apply the resummed version of the L\"uscher formula to analyze finite volume corrections to the mass of the nucleon and of heavy mesons. We show that by applying the subthreshold expansion of the scattering amplitudes one can express the…

High Energy Physics - Lattice · Physics 2015-03-17 Gilberto Colangelo , Andreas Fuhrer , Stefan Lanz

The effects of magnetic interaction between vector mesons and nucleons on the propagation (mass and width) of the $\rho$-meson in particular moving through very dense nuclear matter is studied and the modifications, qualitative and…

Nuclear Theory · Physics 2008-11-26 Abhee Kanti Dutt- Mazumder , Binayak Dutta-Roy , Anirban Kundu , Triptesh De

We investigate the modification of the $J/\psi$ meson mass in asymmetric nuclear matter at zero and finite temperatures employing an effective Lagrangian approach that considers the contributions of $DD$ and $DD^*$ meson loops. The medium…

High Energy Physics - Phenomenology · Physics 2026-04-29 Manpreet Kaur , Arvind Kumar

We analyze low-energy hyperon-nucleon scattering using an effective field theory in next-to-leading order. By fitting experimental cross sections for laboratory hyperon momenta below 200 MeV/c and using information from the hypertriton we…

Nuclear Theory · Physics 2009-11-07 C. L. Korpa , A. E. L. Dieperink , R. G. E. Timmermans

With the aim of extracting information on the shift of the $\omega$ mass in the nuclear medium we analyze data obtained at ELSA from where claims for evidence of a mass shift of the $\omega$ have been made. We develop a Monte Carlo…

Nuclear Theory · Physics 2008-11-26 M. Kaskulov , E. Hernandez , E. Oset

We determine the influence of the three-body force and the medium modification of meson masses on pairing in nuclear and neutron matter. A reduction of the pairing gap is found and increasing with density.

Nuclear Theory · Physics 2009-11-07 W. Zuo , U. Lombardo , H. -J. Schulze , C. W. Shen

Experimental searches for modifications of vector mesons in the nuclear medium are reviewed. Data on $\rho,\omega$ and $\Phi$ mesons are presented. The results have been obtained in elementary reactions with proton and photon beams as well…

Nuclear Experiment · Physics 2008-11-26 Volker Metag

We review the in-medium modifications of effective masses (Lorentz scalar potentials or phenomenon of mass shift) of heavy-heavy and heavy-light mesons in symmetric nuclear matter and their nuclear bound states. We use a combined approach…

Nuclear Theory · Physics 2025-06-11 J. J. Cobos-Martínez , Guilherme N. Zeminiani , Kazuo Tsushima

After decades-long attempts to measure the mass shift and understand the origin of hadron mass, it became clear that one has to analyze hadrons with small vacuum width. Also, to identify the effect of chiral symmetry breaking, one has to…

Nuclear Theory · Physics 2020-01-08 Su Houng Lee

Using a self-consistent quark model for nuclear matter we investigate variations of the masses of the non-strange vector mesons, the hyperons and the nucleon in dense nuclear matter (up to four times the normal nuclear density). We find…

Nuclear Theory · Physics 2008-11-26 K. Saito , A. W. Thomas

The formalism developed by Jain and Kundu for the propagation of a resonance in the nuclear medium has been modified to the case of heavy-ion collisions at relativistic energies. The formalism includes coherently the contribution to the…

Nuclear Theory · Physics 2008-11-26 Bijoy Kundu , B. K. Jain

The properties of vector mesons in nuclear matter are discussed. I examine the constraints imposed by elementary processes on the widths of $\rho$ and $\omega$ mesons in nuclear matter. Furthermore, results for the $\rho$- and…

Nuclear Theory · Physics 2007-05-23 B. Friman

We establish a relation between the equation of state (EOS) of nuclear matter and the fourth-order symmetry energy $a_{\rm{sym,4}}(A)$ of finite nuclei in a semi-empirical nuclear mass formula by self-consistently considering the bulk,…

Nuclear Theory · Physics 2019-02-01 Rui Wang , Lie-Wen Chen

We analize the influence of nuclear effects on the determination of the nucleon axial mass from nuclear cross sections. Our work is based on a formalism widely applied to describe electron-nucleus scattering data in the impulse…

High Energy Physics - Phenomenology · Physics 2009-10-29 Omar Benhar , Davide Meloni

We calculate the $^1S_0$ pairing gap in nuclear matter by adopting the "in-medium Bonn potential" proposed by Rapp et al. [e-print nucl-th/9706006], which takes into account the in-medium meson mass decrease, as the particle-particle…

Nuclear Theory · Physics 2009-10-31 Masayuki Matsuzaki , Tomonori Tanigawa

A new QCD sum rule analysis on the spin-isospin averaged $\rho$, $\omega$ and $\phi$ meson-nucleon scattering lengths is presented. By introducing the constraint relation on the the low energy limit of the vector-current nucleon forward…

Nuclear Theory · Physics 2009-10-30 Yuji Koike , A. Hayashigaki

We discuss the effect of changes in meson properties in a nuclear medium on physical observables, notably, $J/\Psi$ dissociation on pion and $\rho$ meson comovers in relativistic heavy ion collisions, and the prediction of the $\omega$-,…

Nuclear Theory · Physics 2010-02-17 K. Tsushima , A. Sibirtsev , K. Saito , A. W. Thomas , D. H. Lu

We estimate the $\Upsilon$, $\eta_b$ and $B^*$ meson mass shifts in symmetric nuclear matter. The interest is, whether the strengths of the bottomonium-(nuclear matter) and charmonium-(nuclear matter) interactions are similar or different.…

High Energy Physics - Phenomenology · Physics 2021-09-15 G. N. Zeminiani , J. J. Cobos-Martinez , K. Tsushima