In-medium properties of pseudoscalar $D_s$ and $B_s$ mesons

Abstract

We calculate the shift in 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 ${⟨\bar{s}s⟩}_{{\rho }_B}$, and gluon condensates ${⟨\frac{{\alpha }_s}{\pi }{G^a}_{\mu \nu }{G^a}^{\mu \nu }⟩}_{{\rho }_B}$ to be used in the QCD sum rules for pseudoscalar $D_s$ and $B_s$ mesons are calculated using chiral SU(3) model. As an application of our present work, we calculate the in-medium decay widths of the excited (c$\bar{s}$) states $D_s^{\ast }(2715)$ and $D_s^{\ast }(2860)$ 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. Results of the present investigation may be helpful to understand the possible outcomes of the future experiments like CBM and PANDA under the FAIR facility.

34 pages annd 8 figures

References in corpus (19)

• J/psi Production vs Centrality, Transverse Momentum, and Rapidity in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• ${\mathbf{D}}_{\mathbf{s}}$-Meson as Quantitative Probe of Diffusion and Hadronization in Nuclear Collisions
• $D_{sJ}(2860)$ and $D_{sJ}(2715)$
• QCD sum rules for D and B mesons in nuclear matter
• The newly observed open-charm states in quark model
• Canonical Interpretation of the D_{sJ}(2860) and D_{sJ}(2690)
• Exotic nuclei with open heavy flavor mesons
• In-medium chiral condensate beyond linear density approximation
• $J/\psi$ and ${\eta }_c$ masses in isospin asymmetric hot nuclear matter - a QCD sum rule approach
• D-mesons in asymmetric nuclear matter
• Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter
• Isospin dependent kaon and antikaon optical potentials in dense hadronic matter
• Possible 2S and 1D charmed and charmed-strange mesons
• More about the $B$ and $D$ mesons in nuclear matter
• Open charm meson in nuclear matter at finite temperature beyond the zero range approximation
• Heavy-light quark pseudoscalar and vector mesons at finite temperature
• Light vector meson masses in strange hadronic matter -- a QCD sum rule approach
• Bottom-strange mesons in hyperonic matter
• (Pseudo)Scalar Charmonium in Finite Temperature QCD