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Title: Search for Supersymmetry via Associated Production of Charginos and Neutralinos in Final States with Three Leptons

Abstract

A search for associated production of charginos and neutralinos is performed using data recorded with the D0 detector at a pp center-of-mass energy of 1.96 TeV at the Fermilab Tevatron Collider. This analysis considers final states with missing transverse energy and three charged leptons, of which at least two are electrons or muons. No evidence for supersymmetry is found in a data set corresponding to an integrated luminosity of 320 pb{sup -1}. Limits on the product of the production cross section and leptonic branching fraction are set. For the minimal supergravity model, a chargino lower mass limit of 117 GeV at the 95% C.L. is derived in regions of parameter space with enhanced leptonic branching fractions.

Authors:
; ; ; ; ; ;  [1]; ; ; ; ; ; ; ; ; ;  [2]; ; ;  [3]
  1. Joint Institute for Nuclear Research, Dubna (Russian Federation)
  2. University of Oklahoma, Norman, Oklahoma 73019 (United States)
  3. Michigan State University, East Lansing, Michigan 48824 (United States); and others
Publication Date:
OSTI Identifier:
20696539
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 95; Journal Issue: 15; Other Information: DOI: 10.1103/PhysRevLett.95.151805; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANCHING RATIO; CENTER-OF-MASS SYSTEM; CROSS SECTIONS; ELECTRONS; FERMILAB TEVATRON; GEV RANGE 100-1000; INCLUSIVE INTERACTIONS; LUMINOSITY; MASS; MATHEMATICAL SPACE; MUONS; PARTICLE PRODUCTION; PROTON-PROTON INTERACTIONS; SPARTICLES; SUPERGRAVITY; SUPERSYMMETRY; TEV RANGE 01-10; TRANSVERSE ENERGY

Citation Formats

Abazov, V M, Alexeev, G D, Kalinin, A M, Kharzheev, Y M, Malyshev, V L, Vertogradov, L S, Yatsunenko, Y A, Abbott, B, Gutierrez, P, Hall, I, Jain, S, Kopal, M, Pompos, A, Severini, H, Skubic, P, Strauss, M, Zhang, X, Abolins, M, Brock, R, and Dyer, J. Search for Supersymmetry via Associated Production of Charginos and Neutralinos in Final States with Three Leptons. United States: N. p., 2005. Web. doi:10.1103/PhysRevLett.95.151805.
Abazov, V M, Alexeev, G D, Kalinin, A M, Kharzheev, Y M, Malyshev, V L, Vertogradov, L S, Yatsunenko, Y A, Abbott, B, Gutierrez, P, Hall, I, Jain, S, Kopal, M, Pompos, A, Severini, H, Skubic, P, Strauss, M, Zhang, X, Abolins, M, Brock, R, & Dyer, J. Search for Supersymmetry via Associated Production of Charginos and Neutralinos in Final States with Three Leptons. United States. doi:10.1103/PhysRevLett.95.151805.
Abazov, V M, Alexeev, G D, Kalinin, A M, Kharzheev, Y M, Malyshev, V L, Vertogradov, L S, Yatsunenko, Y A, Abbott, B, Gutierrez, P, Hall, I, Jain, S, Kopal, M, Pompos, A, Severini, H, Skubic, P, Strauss, M, Zhang, X, Abolins, M, Brock, R, and Dyer, J. Fri . "Search for Supersymmetry via Associated Production of Charginos and Neutralinos in Final States with Three Leptons". United States. doi:10.1103/PhysRevLett.95.151805.
@article{osti_20696539,
title = {Search for Supersymmetry via Associated Production of Charginos and Neutralinos in Final States with Three Leptons},
author = {Abazov, V M and Alexeev, G D and Kalinin, A M and Kharzheev, Y M and Malyshev, V L and Vertogradov, L S and Yatsunenko, Y A and Abbott, B and Gutierrez, P and Hall, I and Jain, S and Kopal, M and Pompos, A and Severini, H and Skubic, P and Strauss, M and Zhang, X and Abolins, M and Brock, R and Dyer, J},
abstractNote = {A search for associated production of charginos and neutralinos is performed using data recorded with the D0 detector at a pp center-of-mass energy of 1.96 TeV at the Fermilab Tevatron Collider. This analysis considers final states with missing transverse energy and three charged leptons, of which at least two are electrons or muons. No evidence for supersymmetry is found in a data set corresponding to an integrated luminosity of 320 pb{sup -1}. Limits on the product of the production cross section and leptonic branching fraction are set. For the minimal supergravity model, a chargino lower mass limit of 117 GeV at the 95% C.L. is derived in regions of parameter space with enhanced leptonic branching fractions.},
doi = {10.1103/PhysRevLett.95.151805},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 15,
volume = 95,
place = {United States},
year = {2005},
month = {10}
}