Pion structure in the nuclear medium

J. P. B. C. de Melo, K. Tsushima, Bruno El-Bennich, E. Rojas, and T. Frederico
Phys. Rev. C 90, 035201 – Published 2 September 2014

Abstract

Using the light-front pion wave function based on a Bethe-Salpeter amplitude model, we study the properties of the pion in symmetric nuclear matter. The pion model we adopt is well constrained by previous studies to explain the pion properties in vacuum. In order to consistently incorporate the constituent up and down quarks of the pion immersed in symmetric nuclear matter, we use the quark-meson coupling model, which has been widely applied to various hadronic and nuclear phenomena in a nuclear medium with success. We predict the in-medium modifications of the pion electromagnetic form factor, charge radius, and weak decay constant in symmetric nuclear matter.

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  • Received 17 April 2014
  • Revised 11 June 2014

DOI:https://doi.org/10.1103/PhysRevC.90.035201

©2014 American Physical Society

Authors & Affiliations

J. P. B. C. de Melo1,*, K. Tsushima2,†, Bruno El-Bennich1,‡, E. Rojas1,§, and T. Frederico3,∥

  • 1Laboratório de Física Teórica e Computacional, Universidade Cruzeiro do Sul, 01506-000, São Paulo, SP, Brazil
  • 2International Institute of Physics, Federal University of Rio Grande do Norte, 59078-400, Natal, RN, Brazil
  • 3Instituto Tecnológico da Aeronáutica/DCTA, 12228-900, São José dos Campos, SP, Brazil

  • *joao.mello@cruzeirodosul.edu.br
  • kazuo.tsushima@gmail.com
  • bruno.elbennich@cruzeirodosul.edu.br
  • §eduardo.rojas@cruzeirodosul.edu.br
  • tobias@ita.br

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Issue

Vol. 90, Iss. 3 — September 2014

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