In-medium mass shifts of $B_c^{(*)}, B_s^{(*)}$ and $D_s^{(*)}$ mesons

K. Tsushima; S. L. P. G. Beres; G. N. Zeminiani

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arXiv · 2511.00703

In-medium mass shifts of $B_c^{()}, B_s^{()}$ and $D_s^{(*)}$ mesons

K. Tsushima·S. L. P. G. Beres·G. N. Zeminiani

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Abstract

We present our predictions for the Lorentz scalar mass shifts of two-flavored heavy mesons, $B_c^{(*)}, B_s^{(*)}$ and $D_s^{(*)}$ in symmetric nuclear matter. The in-medium mass shifts are estimated by evaluating the lowest order one-loop self-energies of the mesons based on a flavor-SU(5) effective Lagrangian approach. In-medium properties necessary for the estimates are calculated by the quark-meson coupling (QMC) model. The enhanced self-energies of the mesons in symmetric nuclear matter relative to those in free space, yield the negative mass shifts of these mesons.

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K. Tsushima, S. L. P. G. Beres, G. N. Zeminiani. 2025-11-01. In-medium mass shifts of $B_c^{(*)}, B_s^{(*)}$ and $D_s^{(*)}$ mesons. https://arxiv.org/abs/2511.00703

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