Search for single electrons from supersymmetric-particle production

Journal Article · Thu Jan 01 00:00:00 EST 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.35.374· OSTI ID:6008847

Fernandez, E W; Ford, W T; Qi, N; Read, Jr, A L; Smith, J G; Camporesi, T; Peruzzi, I; Piccolo, M; Hurst, R B; Lau, K H; others, and

A search for single electrons produced by the decay of singly produced supersymmetric electrons (e-italic-tilde) or W's (W-italic-tilde) within the MAC detector at the SLAC storage ring PEP has been performed in e/sup +/e/sup -/ annihilations at ..sqrt..s = 29 GeV. No evidence of supersymmetric-particle production is observed in a data sample with an integrated luminosity of 206 pb/sup -1/. Limits on possible masses of supersymmetric electrons and photons (gamma-tilde) are presented. The e-italic-tilde mass limit is m/sub e-italic-tilde/>24.5 GeV/c/sup 2/ at the 90% confidence level if m/sub e-italic-tilde//sub >//sub L//sub =/ = m/sub e-tilde//sub =/ and m/sub gamma-tilde/ = 0. If m/sub e-italic-tilde//sub >//sub L//sub =/>>m/sub e-tilde//sub =/, the corresponding limit is m/sub e-italic-tilde//sub >//sub R//sub =/>23.3 GeV/c/sup 2/. Limits on possible masses of supersymmetric W's and neutrino's (nu-tilde) are also presented. The W-italic-tilde mass limit is m/sub W-italic-tilde/>22.0 GeV/c/sup 2/ at the 90% confidence level if m/sub nu-tilde/ = 0.

• Research Organization: Department of Physics, University of Colorado, Boulder, Colorado 80309
• OSTI ID: 6008847
• Journal Information: Phys. Rev. D; (United States), Vol. 35:1
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-POSITRON INTERACTIONS
ANNIHILATION
ELECTRONS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
BHABHA SCATTERING
DECAY
FEYNMAN DIAGRAM
GEV RANGE 10-100
INTERMEDIATE BOSONS
MASS
MONTE CARLO METHOD
NEUTRINOS
PEP STORAGE RINGS
PHOTONS
QUANTUM ELECTRODYNAMICS
SUPERSYMMETRY
BASIC INTERACTIONS
BOSONS
DIAGRAMS
ELASTIC SCATTERING
ELECTRODYNAMICS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
GEV RANGE
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTONS
MASSLESS PARTICLES
PARTICLE INTERACTIONS
QUANTUM FIELD THEORY
SCATTERING
STORAGE RINGS
SYMMETRY
645101* - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties