English

$D$ and $D^*$ mesons in isospin asymmetric nuclear medium

High Energy Physics - Phenomenology 2025-06-11 v1 Nuclear Theory

Abstract

We investigate the properties of pseudoscalar DD and vector DD^* mesons in an isospin asymmetric nuclear medium using a hybrid approach that integrates the light-front quark model with the chiral SU(3) quark mean field model. The influence of isospin asymmetric nuclear medium is examined by utilizing the in-medium quark masses derived from the chiral SU(3) quark mean field model as an input in the light-front quark model to study the medium modification of DD mesons. We examine the impact of isospin asymmetry and baryon density at zero and finite temperature on the effective masses, weak decay constants, and distribution amplitudes of the pseudoscalar mesons D0D^0, D+D^+, DsD_s, and the vector mesons D0D^{0*}, D+D^{+*}, and DsD_s^*. Our results indicate significant medium-induced changes for pseudoscalar DD and vector DD^* mesons having u/du/d as one of their constituent quarks, while a comparatively reduced effect is observed for mesons containing a strange quark. In contrast to temperature and isospin asymmetry, changes in the baryon density of the nuclear medium have a larger effect on different properties of DD and DD^* mesons.

Keywords

Cite

@article{arxiv.2506.08707,
  title  = {$D$ and $D^*$ mesons in isospin asymmetric nuclear medium},
  author = {Anshu Gautam and Dhananjay Singh and Navpreet Kaur and Satyajit Puhan and Suneel Dutt and Harleen Dahiya and Arvind Kumar},
  journal= {arXiv preprint arXiv:2506.08707},
  year   = {2025}
}

Comments

33 pages, 9 figures