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

2025/11/01 by Tsushima, K., Beres, S. L. P. G., Zeminiani, G. N.
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2511.00703

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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