Research Publication

D and D* mesons in isospin asymmetric nuclear medium

Published in PTEP.

Authors

A. Gautam, D. Singh, N. Kaur, S. Puhan, S. Dutt, H. Dahiya, and A. Kumar

Journal

PTEP ptaf135 (2025)

Date

June 15, 2025

Abstract

We investigate the properties of pseudoscalar D and vector D* 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 D 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 D0, D+, D_s, and the vector mesons D0*, D+*, and D_s*. Our results indicate significant medium-induced changes for pseudoscalar D and vector D* mesons having u/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 D and D* mesons.

Summary

Investigates in-medium properties of pseudoscalar D and vector D* mesons in asymmetric nuclear matter. Finds significant medium effects for mesons with u/d quarks, while strange-quark mesons show reduced sensitivity.

Authors: A. Gautam, D. Singh, N. Kaur, S. Puhan, S. Dutt, H. Dahiya, and A. Kumar
Published in: PTEP ptaf135 (2025)

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