FCNC Decays of the Top Quark

Debjyoti Bardhan

FCNC Decays of the Top Quark

Debjyoti Bardhan

Research output: Contribution to journal › Conference article › peer-review

Abstract

If new physics (e.g. SUSY) does not show up as direct evidence at the LHC, it could still be observable in FCNC processes involving the t-quark. We take a close look at the process t → c+h/Z and show that its branching ratio in the Standard Model is subject to three mechanisms of suppression. To obtain an observable signal, one needs to evade all these mechanisms in a theory beyond the Standard Model. We show that a theory like the cMSSM cannot provide a big enough enhancement. However, in a framework like R-parity-violating SUSY, observable signals are a distinct possibility.

Original language	English
Journal	Proceedings of Science
Volume	2016-November
State	Published - 1 Jan 2016
Externally published	Yes
Event	9th International Workshop on the CKM Unitarity Triangle, CKM 2016 - Mumbai, India Duration: 28 Nov 2016 → 3 Dec 2016

ASJC Scopus subject areas

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Cite this

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author = "Debjyoti Bardhan",

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N2 - If new physics (e.g. SUSY) does not show up as direct evidence at the LHC, it could still be observable in FCNC processes involving the t-quark. We take a close look at the process t → c+h/Z and show that its branching ratio in the Standard Model is subject to three mechanisms of suppression. To obtain an observable signal, one needs to evade all these mechanisms in a theory beyond the Standard Model. We show that a theory like the cMSSM cannot provide a big enough enhancement. However, in a framework like R-parity-violating SUSY, observable signals are a distinct possibility.

AB - If new physics (e.g. SUSY) does not show up as direct evidence at the LHC, it could still be observable in FCNC processes involving the t-quark. We take a close look at the process t → c+h/Z and show that its branching ratio in the Standard Model is subject to three mechanisms of suppression. To obtain an observable signal, one needs to evade all these mechanisms in a theory beyond the Standard Model. We show that a theory like the cMSSM cannot provide a big enough enhancement. However, in a framework like R-parity-violating SUSY, observable signals are a distinct possibility.

UR - https://www.scopus.com/pages/publications/85050474983

M3 - Conference article

AN - SCOPUS:85050474983

SN - 1824-8039

VL - 2016-November

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 9th International Workshop on the CKM Unitarity Triangle, CKM 2016

Y2 - 28 November 2016 through 3 December 2016

ER -

FCNC Decays of the Top Quark

Abstract

ASJC Scopus subject areas

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