Eur. Phys. J. C 16, 367-369
DOI 10.1007/s100520000396
Higgs induced light leptoquark-diquark mixing and proton decay
Mehta Research Institute, Chhatnag Road, Jhusi, Allahabad-211019, India
Received: 8 December 1999 / Revised version: 9 March 2000 /
Published online: 8 June 2000 - © Springer-Verlag 2000
Abstract
In low energy phenomenology, to avoid the strong constraints of
proton
decay it is usually assumed that light (
GeV) leptoquarks
couple only to quark-lepton pairs, and light diquarks couple
only
to
quark pairs. In this paper we present two specific examples where
the Higgs induced mixing between leptoquarks and diquarks through
trilinear
interaction terms reintroduces the troublesome
couplings and gives rise to proton decay.
The bound on the unknown parameters of
this scenario that arise from the proton lifetime has also been
derived.
Copyright Società Italiana di Fisica, Springer-Verlag 2000
