English

$J/\psi$ and $\eta_c$ in asymmetric hot magnetized nuclear matter

High Energy Physics - Phenomenology 2018-10-23 v1

Abstract

We investigate the mass-shift of vector channel J/ψJ/\psi and pseudoscalar channel ηc\eta_c in strongly magnetized asymmetric nuclear medium at finite temperature using the conjunction of chiral SU(3)SU(3) model with the QCD sum rules. The magnetic field dependence of scalar gluon condensate αsπGμνaGaμν\left\langle \frac{\alpha_{s}}{\pi} G^a_{\mu\nu} {G^a}^{\mu\nu} \right\rangle as well as the twist-2 gluon condensate αsπGμσaGaνσ\left\langle \frac{\alpha_{s}}{\pi} G^a_{\mu\sigma} {{G^a}_\nu}^{\sigma} \right\rangle calculated from chiral SU(33) model, are implemented in QCD sum rules to calculate the magnetic field dependence of J/ψJ/\psi and ηc\eta_c meson masses. The effects of constant external magnetic field at finite density and temperature of the medium are found to be appreciable in symmetric and asymmetric nuclear matter. The results of the present investigation may be helpful to understand the experimental observables arising from the Compressed Baryonic Matter (CBM) produced in asymmetric non-central heavy ion collision experiments.

Keywords

Cite

@article{arxiv.1810.09185,
  title  = {$J/\psi$ and $\eta_c$ in asymmetric hot magnetized nuclear matter},
  author = {Rajesh Kumar and Arvind Kumar},
  journal= {arXiv preprint arXiv:1810.09185},
  year   = {2018}
}

Comments

38 pages and 15 figures