Υ and η_b nuclear bound states

2022/01/14 by Cobos-Martínez, J. J., Zeminiani, G. N., Tsushima, K. · 4 citations
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2201.05696

Abstract

Υ and η_b nuclear bound state energies are calculated for various nuclei neglecting any possible effects of the widths. Essential input for the calculations, namely the medium-modified B and B^* meson masses, as well as the density distributions in nuclei, are calculated within the quark-meson coupling (QMC) model. The attractive potentials for the Υ and η_b mesons in nuclei are calculated from the mass shifts of these mesons in nuclear matter in the local density approximation. These potentials originate from the in-medium enhanced BB and BB^* loops in their respective self energy. After an extensive analysis we conclude that our results suggest that the Υ and η_b mesons should form bound states with all the nuclei considered.

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