psilon and eta(b) nuclear bound state

Author(s)

Cobos-Martinez, J. J. ^[1] ; Zeminiani, G. N. ^[2] ; Tsushima, K. ^[2]

Affiliation

^[1] Univ Sonora, Dept Fis, Blvd Luis Encinas J & Rosales, Hermosillo 83000, Sonora - Mexico

^[2] Univ Cidade Sao Paulo UNICID, Lab Fis Teor & Computac, BR-01506000 Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: PHYSICAL REVIEW A; v. 105, n. 2 FEB 16 2022.
• Web of Science Citations: 0

Abstract

Upsilon and eta(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 Upsilon and eta(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 Upsilon and eta(b) mesons should form bound states with all the nuclei considered. (AU)

• FAPESP's process: 19/00763-0 - Origin of (Dynamical) Mass in Visible Universe and Hadron Properties in Nuclear Medium
• Grantee: Kazuo Tsushima
• Support Opportunities: Regular Research Grants