${\beta }_{IR}^{\prime }$ at an Infrared Fixed Point in Chiral Gauge Theories

Abstract

We present scheme-independent calculations of the derivative of the beta function, denoted ${\beta }_{IR}^{\prime }$, at a conformally invariant infrared (IR) fixed point, in several asymptotically free chiral gauge theories, namely SO($4k+2$) with $2\le k\le 4$ with respective numbers $N_f$ of fermions in the spinor representation, and E${}_6$ with fermions in the fundamental representation.

Comments: 6 pages latex, 4 figures