Φ-meson–nucleus bound states

J. J. Cobos-Martínez, K. Tsushima, G. Krein, and A. W. Thomas
Phys. Rev. C 96, 035201 – Published 1 September 2017

Abstract

ϕ-meson–nucleus bound state energies and absorption widths are calculated for seven selected nuclei by solving the Klein-Gordon equation with complex optical potentials. Essential input for the calculations, namely the medium-modified K and K¯ meson masses, as well as the density distributions in nuclei, are obtained from the quark-meson coupling model. The attractive potential for the ϕ meson in the nuclear medium originates from the in-medium enhanced KK¯ loop in the ϕ-meson self-energy. The results suggest that the ϕ meson should form bound states with all the nuclei considered. However, the identification of the signal for these predicted bound states will need careful investigation because of their sizable absorption widths.

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  • Received 18 May 2017
  • Revised 25 July 2017

DOI:https://doi.org/10.1103/PhysRevC.96.035201

©2017 American Physical Society

Physics Subject Headings (PhySH)

Particles & FieldsNuclear Physics

Authors & Affiliations

J. J. Cobos-Martínez1,2,3, K. Tsushima1, G. Krein4, and A. W. Thomas5

  • 1Laboratório de Física Teórica e Computacional-LFTC, Universidade Cruzeiro do Sul, 01506-000, São Paulo, SP, Brazil
  • 2Cátedra CONACyT, Departamento de Fásica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado Postal 14-740, 07000, Ciudad de México, México
  • 3Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Edificio C-3, Ciudad Universitaria, Morelia, Michoacán 58040, México
  • 4Instituto de Física Teórica, Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz, 271-Bloco II, 01140-070, São Paulo, SP, Brazil
  • 5ARC Centre of Excellence for Particle Physics at the Terascale and CSSM, Department of Physics, University of Adelaide, Adelaide SA 5005, Australia

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Issue

Vol. 96, Iss. 3 — September 2017

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