psilon and eta(b) nuclear bound state

Autor(es)

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

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: PHYSICAL REVIEW A; v. 105, n. 2 FEB 16 2022.
• Citações Web of Science: 0

Resumo

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)

• Processo FAPESP: 19/00763-0 - Origem da Massa (Dinâmica) no Universo Visível e Propriedades de Hadron em Meio Nuclear
• Beneficiário: Kazuo Tsushima
• Modalidade de apoio: Auxílio à Pesquisa - Regular