Supersymmetric QCD flavor-changing top quark decay
نویسندگان
چکیده
منابع مشابه
Qcd Flavour Changing Top Quark Decay
We present a detailed and complete calculation of the gluino and scalar quarks contribution to the flavour-changing top quark decay into a charm quark and a photon, gluon, or a Z 0 boson within the minimal supersymmetric standard model including flavour changing gluino-quarks-scalar quarks couplings in the right-handed sector. We compare the results with the ones presented in an earlier paper w...
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The flavor changing top quark decays t → cV (V = Z, γ, g) induced by R-parity-violating couplings in the minimal supersymmetric standard model (MSSM) are evaluated. We find that the decays t → cV can be significantly enhanced relative to those in the R-parity conserving SUSY model. Our results show that the top quark FCNC decay can be as large as Br(t → cg) ∼ 10−3, Br(t → cZ) ∼ 10−4 and Br(t → ...
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متن کاملFlavor-changing top quark decays in R-parity-violating SUSY
The flavor changing top quark decays t → cV (V = Z, γ, g) induced by R-parity-violating couplings in the minimal supersymmetric model are evaluated. We find that Br(t → cV ) can be enhanced significantly relative to that in the SUSY model with R-parity. Our results show that Br(t → cg) ∼ 10, Br(t → cZ) ∼ 10 and Br(t → cγ) ∼ 10, which are observable at the upgraded Tevatron and the LHC. PACS: 14...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1997
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.56.4213