Multilepton signatures of gauge mediated SUSY breaking at CERN LEP II

Journal Article · Wed Jul 01 04:00:00 EDT 1998 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.58.015008· OSTI ID:636221

Cheung, K; Dicus, D A ^[1]; Cheung, K; Dicus, D A ^[2]; Cheung, K ^[3]; Dutta, B ^[4]; Nandi, S ^[5]

---

1. Center for Particle Physics, University of Texas, Austin, Texas 78712 (United States)
2. Department of Physics, University of Texas, Austin, Texas 78712 (United States)
3. Department of Physics, University of California at Davis, Davis, California 95616 (United States)
4. Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403 (United States)
5. Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078 (United States)

In the framework of gauge-mediated supersymmetry breaking models, pair production of the lightest neutralinos, scalar leptons, or charginos at CERN LEP II gives rise to interesting signals involving multilepton final states and missing energy. In the parameter space where the scalar tau, {tilde {tau}}{sub 1}, is the next-to-lightest supersymmetric particle, we identify three interesting regions, which give rise to distinctly different final states: (i) 2 {tau}-leptons plus missing energy, (ii) 4 charged leptons plus missing energy, where in some regions all four are {tau}-leptons, or (iii) six charged leptons, of which four are {tau}-leptons and the other two are electrons or muons, plus missing energy. We study in detail the size of these regions in the parameter space of gauge-mediated models and give cross section contours in these regions for various LEP II energies. We also discuss the possibility of chargino-pair production at LEP II. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 636221
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 58; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHARGED PARTICLES
ELECTRONS
LEPTONS
MUONS
NEUTRAL PARTICLES
PAIR PRODUCTION
SPARTICLES
SUPERSYMMETRY
SYMMETRY BREAKING
TAU PARTICLES