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Flavor-changing top quark decays inR-parity-violating supersymmetric models

1997/05/31 by Jin Min Yang, Bing-Lin Young, Xinmin Zhang +1 · 139 citations
Physics and Astronomy · #Large Hadron Collider #Minimal Supersymmetric Standard Model #Neutrino Physics Research #Observable #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #R-parity #Supersymmetry #Tevatron #Top quark #hep-ph

paper · pdf · doi:10.1103/physrevd.58.055001

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 58(5) (American Physical Society) · Typos corrected

openalex publication_date 1998/07/15 · arxiv created 2005/09/06 · arxiv updated 2010/04/06 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The flavor-changing top quark decays \stackrel\ensuremath→tcV (V=Z,\ensuremathγ,g) induced by R-parity-violating couplings in the minimal supersymmetric standard model are evaluated. We find that the decays \stackrel\ensuremath→tcV can be significantly enhanced relative to those in the R-parity-conserving supersymmetric model. Our results show that the top quark flavor-changing neutral current decay can be as large as Br(\stackrel\ensuremath→tcg)\ensuremath∼10^\ensuremath-3, Br(\stackrel\ensuremath→tcZ)\ensuremath∼10^\ensuremath-4, and Br(\stackrel\ensuremath→tc\ensuremathγ)\ensuremath∼10^\ensuremath-5, which may be observable at the upgraded Fermilab Tevatron and/or the CERN LHC.

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