Search for R -Parity Violating Supersymmetry Using Like-Sign Dielectrons in p[ovr p] Collisions at [radical] (s) =1. 8 TeV

Journal Article · Wed Sep 01 00:00:00 EDT 1999 · Physical Review Letters

OSTI ID:5908046

Blair, R E; Byrum, K L; Kovacs, E; Kuhlmann, S E; LeCompte, T; Nodulman, L ^[1]; Breccia, L; Brunetti, R; Deninno, M; Fiori, I; Mazzanti, P ^[2]; Behrends, S; Bensinger, J; Blocker, C; Kirsch, L; Lamoureux, J I ^[3]; Bonushkin, Y; Hauser, J; Lindgren, M ^[4]; Amadon, A ; Berryhill, J; Contreras, M; Culbertson, R; Frisch, H; Grosso-Pilcher, C; Hohlmann, M; Nakaya, T ^[5]; Cronin-Hennessy, D; Dittmann, J R; Goshaw, A T; Khazins, D; Kowald, W; Oh, S H ^[6]; Albrow, M G; Atac, M; Beretvas, A; Berge, J P; Biery, K; Binkley, M; Buckley-Geer,

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1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
3. Brandeis University, Waltham, Massachusetts 02254 (United States)
4. University of California at Los Angeles, Los Angeles, California 90024 (United States)
5. University of Chicago, Chicago, Illinois 60637 (United States)
6. Duke University, Durham, North Carolina 27708 (United States)

We present a search for like-sign dielectron plus multijet events using 107 pb[sup [minus]1] of data in p[ovr p] collisions at [radical] (s) =1.8 TeV collected in 1992[endash]1995 by the CDF experiment. Finding no events that pass our selection, we set [sigma][times]BR limits on two supersymmetric processes that can produce this experimental signature: gluino-gluino or squark-antisquark production with R -parity violating decays of the charm squark or lightest neutralino via a nonzero [lambda][sup [prime]][sub 121] coupling. We compare our results to the next-to-leading order calculations for gluino and squark production cross sections and set lower limits on M([tilde g]) , M([tilde t][sub 1]) , and M([tilde q]) . [copyright] [ital 1999] [ital The American Physical Society]

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• OSTI ID: 5908046
• Journal Information: Physical Review Letters, Vol. 83:11; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
C QUARKS
CHARM PARTICLES
GLUONS
JET MODEL
JETS
PARITY
PROTON-ANTIPROTON INTERACTIONS
PROTON-PROTON INTERACTIONS
QUARKS
SPARTICLES
SUPERSYMMETRY
BARYON-BARYON INTERACTIONS
BOSONS
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
MATHEMATICAL MODELS
NUCLEON-ANTINUCLEON INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
POSTULATED PARTICLES
PROTON-NUCLEON INTERACTIONS
SYMMETRY
662340* - Hadron Interactions- (1992-)
662120 - General Theory of Particles & Fields- Symmetry
Conservation Laws
Currents & Their Properties- (1992-)
662420 - Properties of Mesons & Meson Resonances- (1992-)