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Pionic branches in neutron matter and the problem of pion condensation

E. Oset

A. Palanques-Mestre

  • Department of Atomic and Nuclear Physics, University of Valladolid, Valladolid, Spain

  • Department of Theoretical Physics, University of Barcelona, Barcelona, Spain

Phys. Rev. C 30, 366 – Published 1 July, 1984

DOI: https://doi.org/10.1103/PhysRevC.30.366

Abstract

The pion spectrum for charged and neutral pions is investigated in pure neutron matter, by letting the pions interact with a neutron Fermi sea in a self-consistent scheme that renormalizes simultaneously the mesons, considered the source of the interaction, and the nucleons. The possibility of obtaining different kinds of pion condensates is investigated with the result that they cannot be reached even for values of the spin-spin correlation parameter, g, far below the range commonly accepted.

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