[SEMINARI]: Dr. Girlanda: Phenomenology of the mechanism of spontaneous chiral symmetry breaking

[Arcadi Santamaria]

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                              S E M I N A R I

            [Image]    Departament de Física Teòrica     [Image]
                          Universitat de València
                      46100 Burjassot (València) Spain

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      Phenomenology of the mechanism of spontaneous chiral symmetry breaking

                                Luca GIRLANDA

                      (Universite de Paris-Sud (Orsay))

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                     Aula de Seminaris de Física Teòrica
                 Monday 01 of February of 1999 at 04:00 PM
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                                    Resum

 As it is known, it is conceivable that the spontaneous breakdown of chiral
    symmetry occur without the formation of a quark-antiquark condensate.
  Admitting this possibility results in some complications, which, however,
 can be systematically accounted for in the framework of Generalized Chiral
     Perturbation Theory. After contructing the SU(2)XSU(2) generalized
   lagrangian and renormalizing it at one loop level, I will focus on two
processes, very sensitive to the size of the quark condensate: elastic pi-pi
               scattering and the decays tau -> 3 pi nu(tau).

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