Y. Kawamura et al., SOFT SCALAR-MASS SUM-RULE IN GAUGE-YUKAWA UNIFIED MODELS AND ITS SUPERSTRING INTERPRETATION, Physics letters. Section B, 405(1-2), 1997, pp. 64-70
It is shown that a certain sum rule for soft supersymmetry-breaking sc
alar masses, which has been recently found in a certain class of super
string models, is universal for gauge-Yukawa unified models. To explai
n this coincidence, we argue that the low-energy remnant of the target
-space duality invariance in the effective supergravity of compactifie
d superstrings can be identified with the (broken) scale invariance in
gauge-Yukawa unified models, and that gauge-Yukawa unification which
is indispensable for the sum rule to be satisfied follows from the mat
ching of anomalies. (C) 1997 Published by Elsevier Science B.V.