Supersymmetry reach of the Fermilab Tevatron via trilepton, like-sign dilepton, and dilepton plus tau jet signatures

Journal Article · Fri Oct 01 04:00:00 EDT 1999 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.60.075004· OSTI ID:686498

Matchev, K T ^[1]; Pierce, D M ^[2]

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1. Theoretical Physics Department, Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
2. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)

We determine the Fermilab Tevatron{close_quote}s reach in supersymmetric parameter space in trilepton, like-sign dilepton, and dilepton plus tau-jet channels. We critically study the standard model background processes. We find larger backgrounds and, hence, significantly smaller reach regions than recent analyses. We identify the major cause of the background discrepancy. We improve signal-to-noise by introducing an invariant mass cut which takes advantage of a sharp edge in the signal dilepton invariant mass distribution. Also, we independently vary the cuts at each point in SUSY parameter space to determine the set which yields the maximal reach. We find that this cut optimization can significantly enhance the Tevatron reach. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 686498
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 60; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
FERMILAB ACCELERATOR
JET MODEL
STANDARD MODEL
SUPERSYMMETRY
TAU PARTICLES
UNIFIED GAUGE MODELS