Bounds on scalar leptoquarks from Z-physics

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

doi:10.1016/0550-3213(95)00162-L

Bounds on scalar leptoquarks from Z-physics

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

Institute for Theoretical Physics

Stony Brook University

Universidade de São Paulo
CERN

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

43 Scopus citations

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 × 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.

Original language	English
Pages (from-to)	20-36
Number of pages	17
Journal	Nuclear Physics, Section B
Volume	443
Issue number	1-2
DOIs	https://doi.org/10.1016/0550-3213(95)00162-L
State	Published - Jun 5 1995

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title = "Bounds on scalar leptoquarks from Z-physics",

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 × 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.",

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AU - Mizukoshi, J. K.

AU - Éboli, O. J.P.

AU - Gonzalez-Garcia, M. C.

PY - 1995/6/5

Y1 - 1995/6/5

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0001784817

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DO - 10.1016/0550-3213(95)00162-L

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VL - 443

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EP - 36

JO - Nuclear Physics, Section B

JF - Nuclear Physics, Section B

IS - 1-2

ER -

Bounds on scalar leptoquarks from Z-physics

Abstract

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