[SEMINARI] SEMINAR: Vicent Mateu, Chiral Perturbation Theory in the presence of external tensor sources and its phenomenological applications

German Rodrigo Garcia rodrigo en ific.uv.es
Mie Jun 6 10:30:21 CEST 2007


Chiral Perturbation Theory in the presence of external tensor sources and 
its phenomenological applications

Vicent Mateu
IFIC Valencia
Wednesday, 6 of June of 2007     12:00 PM
IFIC's Seminar

Abstract

"We construct the most general chirally-invariant Lagrangian for mesons in 
the presence of external sources coupled to the tensor current up to the 
p6-order (NLO). We provide a detailed discussion on the different 
mechanisms that ensure that our final set of operators is complete and 
minimal. Making use of this formalism we study two-point Green functions 
including tensorcurrents and their properties in the different energy 
regimes. This leads us to phenomenologic constraints in the spectrum of 
J^{PC}=1^{+-} and J^{PC}=1^{--} mesons in the large-Nc limit. Finally I 
will discuss a particular application for new physics search in radiative 
pion decay.



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