Abstract
We calculate the shift in the masses and decay constants of D_s(1968) and B_s(5370) mesons in hot and dense asymmetric strange hadronic matter using QCD sum rules and chiral SU(3) model. In-medium strange quark condensates leftlangle bar{s}srightrangle _{rho _B}, and gluon condensates leftlangle frac{alpha _{s}}{pi } {G^a}_{mu nu } {G^a}^{mu nu } rightrangle _{rho _B}, to be used in the QCD sum rules for pseudoscalar D_s and B_s mesons, are calculated using a chiral SU(3) model. As an application of our present work, we calculate the in-medium decay widths of the excited (cbar{s}) states D_s^*(2715) and D_s^*(2860) decaying to (D_s(1968),eta ) mesons. The medium effects in their decay widths are incorporated through the mass modification of the D_s(1968) and eta mesons. The results of the present investigation may be helpful in understanding the possible outcomes of the future experiments like CBM and PANDA under the FAIR facility.
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