Chiral effective theory with a light scalar and lattice QCD

Friday March 23, 14:30hs -  Seminar room

Speaker: Pedro Talavera (Universitat de Barcelona)

Abstract:

We extend the usual chiral perturbation theory framework to allow the inclusion of a light dynamical isosinglet scalar.

Using lattice QCD results, and a few phenomenological inputs, we explore the parameter space of the effective theory. We discuss the S-wave pion-pion scattering lengths, extract the average value of the two light quark masses and evaluate the impact of the dynamical singlet field in some low-energy constants.

 

We use own and third-party cookies to improve our services by analyzing your browsing habits. If you continue browsing, we will consider that you allow us to use them. You can change the settings or get more information on our "Cookies policy".

I accept cookies from this site.