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Search for Squarks and Gluinos in Single-Photon Events with Jets and Large Missing Transverse Energy inpp¯Collisions at√s=1.8TeV
- Source :
- Physical Review Letters. 82:29-34
- Publication Year :
- 1999
- Publisher :
- American Physical Society (APS), 1999.
-
Abstract
- We search for new physics using events with one high transverse energy photon, two or more jets, and an apparent imbalance in transverse energy, in p{ovr p} collisions at the Fermilab Tevatron at {radical} (s) =1.8 TeV . Such events are predicted for production of supersymmetric particles in some models. No excess is observed beyond expected background. For the parameter space of the minimal supersymmetric standard model with branching fraction B({tilde {chi}}{sup 0}{sub 2}{r_arrow}{gamma}thinsp{tilde {chi}}{sup 0}{sub 1})=1 and m{sub {tilde {chi}}{sup 0}{sub 2 }}{minus}m{sub {tilde {chi}}{sup 0}{sub 1}}{gt}20 GeV , we obtain a 95{percent} confidence level lower mass limit of 310thinspthinspGeV for equal mass squarks and gluinos. The results are also interpreted in models with low energy gauge mediated supersymmetry breaking. {copyright} {ital 1998} {ital The American Physical Society }
- Subjects :
- Physics
Particle physics
Branching fraction
Physics beyond the Standard Model
High Energy Physics::Phenomenology
General Physics and Astronomy
Elementary particle
Supersymmetry
Standard Model
Nuclear physics
High Energy Physics::Experiment
Production (computer science)
Energy (signal processing)
Minimal Supersymmetric Standard Model
Subjects
Details
- ISSN :
- 10797114 and 00319007
- Volume :
- 82
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi...........b597c81d4efc98204b29891f835d6421
- Full Text :
- https://doi.org/10.1103/physrevlett.82.29