Renormalization Group Approach to QCD with Many Flavors

Who: Jens Braun (Jena University)
When: Monday, September 20, 2010 at 14:15
Where: The CP³ meeting room

Abstract: QCD with many quark flavors has drawn a lot of attention in the past
few years. In this talk we discuss the behavior of four-fermion
operators in the presence of gauge fields. Based on the
renormalization group flow of these operators we then analyze the
phase structure of QCD with many flavors in the chiral limit.
Moreover, we present universal scaling relations for physical
observables such as the critical temperature or the chiral condensate
as a function of the flavor number near the conformal window. We argue
on general grounds that the associated critical exponents are related
to the critical exponent of the running gauge coupling at the Caswell-
Banks-Zaks infrared fixed point.
Slides from the talk.