El Cuerpo
Académico de Partículas Campos y Relatividad General invita
cordialmente a su próximo seminario
QCD effective charge from quark-hadron
duality
Dra. Aurore Courtoy
Este
seminario se llevará a cabo en el
Sala de Conferencias 111B/302
Lunes 2 de diciembre de 2013
12:00 hrs.
Resumen:
We present recent developments on hadron
physics in the intersection of perturbative and nonperturbative QCD in the context of the quark-hadron duality. Our framework will be the unpolarized structure function of the proton in the
resonance region. We suggest that the realization of duality is related to the
inclusion of nonperturbative effects at the level of
the coupling constant. The outcome of our analysis is a smooth transition from perturbative to nonperturbative
QCD physics, embodied in the running of the coupling constant at intermediate
scales. While our approach is purely perturbative, we
compare our result to the effective charge obtained in various nonperturbative schemes.