PROTON LIFETIME PROBLEM IN FINITE GRAND UNIFIED THEORIES

Authors
DESHPANDE NG HE XG KEITH E
Citation
Ng. Deshpande et al., PROTON LIFETIME PROBLEM IN FINITE GRAND UNIFIED THEORIES, Physics letters. Section B, 332(1-2), 1994, pp. 88-92
Citations number
29
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
332
Issue
1-2
Year of publication
1994
Pages
88 - 92
Database
ISI
SICI code
0370-2693(1994)332:1-2<88:PLPIFG>2.0.ZU;2-#
Abstract
We study proton decay in finite supersymmetric SU(5) grand unified the ories. We find that the dimension-five operators due to color triplet higgsino induce too rapid a proton decay. This behaviour can be traced to the large Yukawa couplings to the first generation that are necess ary for finiteness.