Hot QCD

por Cristina Manuel Hidalgo (U. Barcelona)

jueves 29 ene. 1998 12:00 → 13:00 Europe/Madrid

Sala Seminarios (Dpto. de Fisica Teorica (UVEG))

Both high and low temperature effects in QCD will be discussed in the seminar. At high temperature, much higher than the deconfinement phase transition, chromoelectric fields are screened in a quark-gluon plasma. These thermal screening effects can be taken into account by resumming an infinite number of Feynman diagrams, the so-called hard thermal loops (HTL's). Several different approaches to obtain the HTL effective action will be shown. Finally, using chiral Lagrangian techniques, low temperature effects in QCD will be discussed.