DOI 10.1007/s100520000274
Approximate analytic solutions of the renormalization group equations for Yukawa and soft couplings in SUSY models
Bogoliubov Laboratory of Theoretical Physics, JINR, 141 980
Dubna, Moscow Region, Russian Federation
Received: 28 July 1999 / Revised version: 8 October 1999 /
Published online: 17 March 2000 - © Springer-Verlag 2000
Abstract
We present simple analytical formulae which describe solutions of
the RG equations for Yukawa couplings in SUSY gauge theories with the
accuracy of a few per cent. Performing the Grassmannian expansion in
these solutions, one finds those for all the soft couplings and masses.
The solutions clearly exhibit the fixed point behaviour which can be
calculated analytically. A comparison with numerical solutions is made.
Copyright Società Italiana di Fisica, Springer-Verlag 2000
