BOUNDS ON SCALAR LEPTOQUARKS FROM Z-PHYSICS

Authors
MIZUKOSHI JK EBOLI OJP GONZALEZGARCIA MC
Citation
Jk. Mizukoshi et al., BOUNDS ON SCALAR LEPTOQUARKS FROM Z-PHYSICS, Nuclear physics. B, 443(1-2), 1995, pp. 20-36
Citations number
58
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Volume
443
Issue
1-2
Year of publication
1995
Pages
20 - 36
Database
ISI
SICI code
0550-3213(1995)443:1-2<20:BOSLFZ>2.0.ZU;2-9
Abstract
We analyse the constraints on scalar leptoquarks coming from radiative corrections to Z-physics. We perform a global fitting to the LEP data including the contributions of the most general effective Lagrangian for scalar leptoquarks, which exhibits the SU(2)(L) x U(1)(y) gauge in variance. We show that the bounds on leptoquarks that couple to the to p quark are much stronger than the ones obtained from low energy exper iments.