Z physics constraints on vector leptoquarks

O. J.P. Éboli; M. C. Gonzalez-Garcia; J. K. Mizukoshi

doi:10.1016/S0370-2693(97)00123-8

Z physics constraints on vector leptoquarks

O. J.P. Éboli
, M. C. Gonzalez-Garcia
, J. K. Mizukoshi

Institute for Theoretical Physics

Dept. Física At. Mol. y Nuclear
Universidade de São Paulo

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We analyze the constraints on vector leptoquarks coming from radiative corrections to Z physics. We perform a global fitting to the LEP data including the oblique and non-universal contributions of the most general effective Lagrangian for vector leptoquarks, which exhibits the SU (2)_L × U (1)_Y gauge invariance. We show that the Z physics leads to stronger bounds on second and third generation vectors leptoquarks than the ones obtained from low energy and the current collider experiments.

Original language	English
Pages (from-to)	238-244
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	396
Issue number	1-4
DOIs	https://doi.org/10.1016/S0370-2693(97)00123-8
State	Published - Mar 20 1997

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title = "Z physics constraints on vector leptoquarks",

abstract = "We analyze the constraints on vector leptoquarks coming from radiative corrections to Z physics. We perform a global fitting to the LEP data including the oblique and non-universal contributions of the most general effective Lagrangian for vector leptoquarks, which exhibits the SU (2)L × U (1)Y gauge invariance. We show that the Z physics leads to stronger bounds on second and third generation vectors leptoquarks than the ones obtained from low energy and the current collider experiments.",

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AU - Éboli, O. J.P.

AU - Gonzalez-Garcia, M. C.

AU - Mizukoshi, J. K.

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N2 - We analyze the constraints on vector leptoquarks coming from radiative corrections to Z physics. We perform a global fitting to the LEP data including the oblique and non-universal contributions of the most general effective Lagrangian for vector leptoquarks, which exhibits the SU (2)L × U (1)Y gauge invariance. We show that the Z physics leads to stronger bounds on second and third generation vectors leptoquarks than the ones obtained from low energy and the current collider experiments.

AB - We analyze the constraints on vector leptoquarks coming from radiative corrections to Z physics. We perform a global fitting to the LEP data including the oblique and non-universal contributions of the most general effective Lagrangian for vector leptoquarks, which exhibits the SU (2)L × U (1)Y gauge invariance. We show that the Z physics leads to stronger bounds on second and third generation vectors leptoquarks than the ones obtained from low energy and the current collider experiments.

UR - https://www.scopus.com/pages/publications/0642265700

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DO - 10.1016/S0370-2693(97)00123-8

M3 - Article

AN - SCOPUS:0642265700

SN - 0370-2693

VL - 396

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-4

ER -

Z physics constraints on vector leptoquarks

Abstract

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