Probing top quark decay into a light top squark in the supersymmetric standard model at the upgraded Fermilab Tevatron

Journal Article · Sat Aug 01 04:00:00 EDT 1998 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.58.034002· OSTI ID:645460

Hosch, M; Whisnant, K; Young, B ^[1]; Oakes, R J; Yang, J M ^[2]; Zhang, X; Zhang, X ^[3]

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1. Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
2. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (United States)
3. Institute of High Energy Physics, Academia Sinica, Beijing 100039 (China)

We investigate the possibility of observing the exotic decay mode of the top quark into the lightest top squark ({tilde t}{sub 1}) and neutralino ({tilde {chi}}{sub 1}{sup 0}) in the minimal supersymmetric standard model with R parity at the upgraded Fermilab Tevatron. First we examine the bounds for the branching fraction B(t{r_arrow}{tilde t}{sub 1}{tilde {chi}}{sub 1}{sup 0}) from the available experimental data, and then consider all possible backgrounds and investigate the possibility of observing this final state at the Tevatron. We find that this final state is unobservable at run 1. However, run 2 can either discover it, or establish strong limits ({approximately}1{percent}) on the branching fraction of this decay. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 645460
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 58; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BRANCHING RATIO
FERMILAB TEVATRON
PARITY
PARTICLE DECAY
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY
SYMMETRY BREAKING
T QUARKS