Bounds on scalar leptoquarks from Z-physics

Bounds on scalar leptoquarks from Z-physics

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 × U(1) Y gauge invariance. We show that...

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Bibliographic Details
Published in:Nuclear physics. B Vol. 443; no. 1; pp. 20 - 36
Main Authors: Mizukoshi, J.K, Éboli, O.J.P, Gonzalez-Garcia, M.C
Format: Journal Article
Language:English
Published: Elsevier B.V 05-06-1995
Online Access:Get full text
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Summary: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 × U(1) Y gauge invariance. We show that the bounds on leptoquarks that couple to the top quark are much stronger than the ones obtained from low energy experiments.
ISSN:0550-3213
1873-1562
DOI:10.1016/0550-3213(95)00162-L