Light vector meson masses in strange hadronic matter -- a QCD sum rule approach

Abstract

We study the properties of the light vector mesons ($\rho$, $\omega$ and $\varphi$) in strange hadronic matter using the QCD sum rule approach. The in-medium masses of the vector mesons are calculated from the modifications of the light quark condensates and the gluon condensates in the hadronic medium. The light quark condensates in the hadronic matter are obtained from the values of the non strange and strange scalar fields of the explicit chiral symmetry breaking term in a chiral SU(3) model. The in-medium gluon condensate is calculated through the medium modification of a scalar dilaton field, which is introduced into the chiral SU(3) model to simulate the scale symmetry breaking of QCD. The mass of the $\omega$ meson is observed to have initially a drop with increase in density and then a rise due to the scattering with the baryons. The mass of the $\rho$ meson is seen to drop with density due to decrease of the light quark condensates in the medium. The effects of isospin asymmetry and strangeness of the medium on the masses of the vector mesons are also studied in the present work. The $\varphi$ meson is observed to have marginal drop in its mass in the nuclear medium. However, the strangeness of the medium is seen to lead to an appreciable increase in its mass arising due to scattering with the hyperons.

arXiv comment26 pages, 8 figures (eps files)

References in corpus (47)

• Gauge Theory Correlators from Non-Critical String Theory
• The Large N Limit of Superconformal Field Theories and Supergravity
• QCD Phenomenology based on a Chiral Effective Lagrangian
• NJL-model analysis of dense quark matter
• Low energy hadron physics in holographic QCD
• QCD and a Holographic Model of Hadrons
• Linear Confinement and AdS/QCD
• Hadronic Spectrum of a Holographic Dual of QCD
• Current correlation functions, QCD sum rules and vector mesons in baryonic matter
• Nuclei in a chiral SU(3) model
• Charmed Mesic Nuclei: Bound D and $\bar{D}$ states with ^{208}Pb
• Mass modification of D-meson at finite density in QCD sum rule
• Dynamical holographic QCD model for glueball and light meson spectra
• Baryons in AdS/QCD
• Baryons in Holographic QCD
• On Studying Charm in Nuclei through Antiproton Annihilation
• J/psi and eta_c in the nuclear medium: QCD sum rule approach
• Medium Modification to the $\Omega$-Meson Mass in the Walecka Model
• Vector Mesons in Nuclear Medium -- an Effective Lagrangian Approach --
• Mass modification of D-meson in hot hadronic matter
• An Effective Lagrangian with Broken Scale and Chiral Symmetry Applied to Nuclear Matter and Finite Nuclei
• QCD Sum Rules, Scattering Length and the Vector Mesons in Nuclear Medium
• Charmonium mass in nuclear matter
• Light Vector Mesons in Nuclear Matter
• Evaluation of QCD sum rules for light vector mesons at finite density and temperature
• Kaons and antikaons in hot and dense hadronic matter
• D mesons in matter and the in-medium properties of charmonium
• D mesons and charmonium states in asymmetric nuclear matter at finite temperatures
• Effects of Dirac sea polarization on hadronic properties - A chiral SU(3) approach
• QCD sum rules for J/psi in the nuclear medium: calculation of the Wilson coefficients of gluon operators up to dimension 6
• D-mesons and charmonium states in hot isospin asymmetric strange hadronic matter
• $J/\psi$ and ${\eta }_c$ masses in isospin asymmetric hot nuclear matter - a QCD sum rule approach
• Sigma and omega meson propagation in a dense nuclear medium
• D-mesons in asymmetric nuclear matter
• Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter
• Four-Quark Condensates in Nucleon QCD Sum Rules
• In-medium vector meson masses in a Chiral SU(3) model
• Isospin dependent kaon and antikaon optical potentials in dense hadronic matter
• Rho-omega mixing in asymmetric nuclear matter via QCD sum rule approach
• Kaon properties in (proto)neutron stars
• Chiral symmetry breaking, color superconductivity and color neutral quark matter: a variational approach
• QCD sum rules for rho mesons in vacuum and in-medium, re-examined
• Color superconducting 2SC+s quark matter and gapless modes at finite temperatures
• Chiral Symmetry Breaking and Pion Wave Function
• Vector mesons at finite temperature and QCD sum rules
• Chiral symmetry breaking, color superconductivity and quark matter phase diagram: a variational approach
• Subtracted Dispersion Relations for In-Medium Meson Correlators in QCD Sum Rules

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