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Chiral transformations of spin-1 mesons in the non-symmetric vacuum


Osipov, A.A. (Dubna, JINR) ; Volkov, M.K. (Dubna, JINR)

Published in: Annals Phys.
Year: 2017
Vol.: 382
Page No: 50-63
Pages: 14
Year: 2017-07 published

Abstract: A new sort of chiral transformations for spin-1 states is obtained as a result of a linearized diagonalization of πa1 mixing in the effective meson Lagrangian. Using this symmetry argument, we argue that there is no physical distinction between such theory and the theory in which a covariant nonlinear diagonalization is used instead. As an illuminating example, the Nambu–Jona-Lasinio type model with the broken SU(2)×SU(2) chiral symmetry in the one-quark-loop approximation is considered.

Keyword(s): Chiral symmetry ; Axial-vector mesons ; Effective chiral Lagrangian ; πa1 mixing ; Spontaneous symmetry breaking ; Nambu–Jona–Lasinio model ; [formula omitted] mixing


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Total numbers of views: 330
Numbers of unique views: 115
DOI: 10.1016/j.aop.2017.04.011
 Record created 2017-06-01, last modified 2017-06-01



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