6533b7dafe1ef96bd126f22e

RESEARCH PRODUCT

D-0-(D-0)over-bar mixing in the weak-gauged U(4)(L)circle times U(4)(R) chiral Lagrangian model

Gabriel Amorós VicenteFrancisco J. Botella OlcinaSantiago Noguera PucholJorge Portolés Ibáñez

subject

Electromagnetisme MesuramentsHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyHigh Energy Physics::ExperimentFísica nuclear

description

The D-0- mixing is analyzed in a weak gauged U(4)(L) x U(4)(R) chiral lagrangian model where the electroweak interaction is introduced as a gauge theory over the meson degrees of freedom. This model allows a particular realization of the G.I.M. mechanism and then could be useful in the study of processes where G.I.M. suppression is effective. As a test of the model we have also analyzed the K-0- mixing. We find am, in good agreement with the experimental result and we show that the D-0- mixing is very much suppressed in agreement with previous estimates in the Heavy Quark expansion framework.

10.1016/s0370-2693(98)00047-1http://hdl.handle.net/10550/33681