Yukawa-coupling corrections to scalar quark decays

Jaume Guasch; Joan Solà; Wolfgang Hollik

doi:10.1016/S0370-2693(98)00898-3

Yukawa-coupling corrections to scalar quark decays

Jaume Guasch, Joan Solà, Wolfgang Hollik

Department of Catalan Studies

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

59 Citations (Scopus)

Abstract

Heavy squark decays into top and charginos or neutralinos could be an unexpected source of top quarks at hadron colliders. A detailed treatment of these processes is necessary for a reliable calculation of both the top quark production cross-section and the standard top quark branching ratio in the MSSM. Along this line we compute the electroweak corrections to the sbottom decays b̃a → χ-i t within the Yukawa coupling approximation. The calculation of these higher order contributions requires renormalization of both the bottom squark mixing angle and of tanβ. This type of corrections gives the leading order electroweak effects at low and high tanβ. © 1998 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	88-99
Journal	Physics Letters. B
Volume	437
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(98)00898-3
Publication status	Published - 1 Oct 1998

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abstract = "Heavy squark decays into top and charginos or neutralinos could be an unexpected source of top quarks at hadron colliders. A detailed treatment of these processes is necessary for a reliable calculation of both the top quark production cross-section and the standard top quark branching ratio in the MSSM. Along this line we compute the electroweak corrections to the sbottom decays {\~b}a → χ-i t within the Yukawa coupling approximation. The calculation of these higher order contributions requires renormalization of both the bottom squark mixing angle and of tanβ. This type of corrections gives the leading order electroweak effects at low and high tanβ. {\textcopyright} 1998 Elsevier Science B.V. All rights reserved.",

author = "Jaume Guasch and Joan Sol{\`a} and Wolfgang Hollik",

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AU - Solà, Joan

AU - Hollik, Wolfgang

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N2 - Heavy squark decays into top and charginos or neutralinos could be an unexpected source of top quarks at hadron colliders. A detailed treatment of these processes is necessary for a reliable calculation of both the top quark production cross-section and the standard top quark branching ratio in the MSSM. Along this line we compute the electroweak corrections to the sbottom decays b̃a → χ-i t within the Yukawa coupling approximation. The calculation of these higher order contributions requires renormalization of both the bottom squark mixing angle and of tanβ. This type of corrections gives the leading order electroweak effects at low and high tanβ. © 1998 Elsevier Science B.V. All rights reserved.

AB - Heavy squark decays into top and charginos or neutralinos could be an unexpected source of top quarks at hadron colliders. A detailed treatment of these processes is necessary for a reliable calculation of both the top quark production cross-section and the standard top quark branching ratio in the MSSM. Along this line we compute the electroweak corrections to the sbottom decays b̃a → χ-i t within the Yukawa coupling approximation. The calculation of these higher order contributions requires renormalization of both the bottom squark mixing angle and of tanβ. This type of corrections gives the leading order electroweak effects at low and high tanβ. © 1998 Elsevier Science B.V. All rights reserved.

U2 - 10.1016/S0370-2693(98)00898-3

DO - 10.1016/S0370-2693(98)00898-3

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VL - 437

SP - 88

EP - 99

JO - Physics Letters. B

JF - Physics Letters. B

IS - 1-2

ER -

Yukawa-coupling corrections to scalar quark decays

Abstract

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