Flavor-changing top quark decays in {ital R}-parity-violating supersymmetric models

Journal Article · Tue Sep 01 00:00:00 EDT 1998 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.58.055001· OSTI ID:641576

Yang, J M; Young, B ^[1]; Yang, J M ^[2]; Zhang, X ^[3]; Zhang, X ^[4]

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1. Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
2. International Institute of Theoretical and Applied Physics, Iowa State University, Ames, Iowa 50011 (United States)
3. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080 (China)
4. Institute of High Energy Physics, Academia Sinica, Beijing 100039 (China)

The flavor-changing top quark decays t{r_arrow}cV (V=Z,{gamma},g) induced by {ital R}-parity-violating couplings in the minimal supersymmetric standard model are evaluated. We find that the decays t{r_arrow}cV can be significantly enhanced relative to those in the {ital R}-parity-conserving supersymmetric model. Our results show that the top quark flavor-changing neutral current decay can be as large as Br(t{r_arrow}cg){approximately}10{sup {minus}3}, Br(t{r_arrow}cZ){approximately}10{sup {minus}4}, and Br(t{r_arrow}c{gamma}){approximately}10{sup {minus}5}, which may be observable at the upgraded Fermilab Tevatron and/or the CERN LHC. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 641576
• Journal Information: Physical Review, D, Vol. 58, Issue 5; Other Information: PBD: Sep 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
UNIFIED GAUGE MODELS
T QUARKS
PARTICLE DECAY
FLAVOR
PARITY
VIOLATIONS
SUPERSYMMETRY
STANDARD MODEL
BRANCHING RATIO
FERMILAB TEVATRON