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Search for single photons from radiative neutrino or supersymmetric particle production

Conference ·
OSTI ID:5555023
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Final results are presented from a search for single-photons produced in association with neutrinos or other weakly interacting neutral particles in e/sup +/e/sup -/ annihilations at ..sqrt..s = 29 GeV. The search was performed with the MAC detector at PEP in a total integrated luminosity of 177 pb/sup -1/. The search limits the number of light-neutrino families to N/sub nu/ < 16. The mass of the selectron is limited to m/sub e tilde/ > 50 GeV/c/sup 2/ if m/sub e tilde L/ = m/sub e tilde R/ and m/sub ..gamma.. tilde/ = 0. The mass of the wino is limited to m/sub W tilde/ > 51 GeV/c/sup 2/ if m/sub nu tilde/ = 0. These limits are at the 90% confidence level.
Research Organization:
Colorado Univ., Boulder (USA). Dept. of Physics; Istituto Nazionale di Fisica Nucleare, Frascati (Italy). Lab. Nazionale di Frascati; Houston Univ., TX (USA). Dept. of Physics; Northeastern Univ., Boston, MA (USA). Dept. of Physics; Stanford Linear Accelerator Center, Menlo Park, CA (USA); Utah Univ., Salt Lake City (USA). Dept. of Physics
DOE Contract Number:
AC02-81ER40025; AC02-76ER00881; AC03-76SF00515
OSTI ID:
5555023
Report Number(s):
SLAC-PUB-4003; CONF-860701-2; ON: DE86012958
Country of Publication:
United States
Language:
English

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Related Subjects

645101* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Electromagnetic Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
GAMMA SPECTRA
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTONS
LIMITING VALUES
MASS
MASSLESS PARTICLES
NEUTRINOS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES
REST MASS
SPECTRA
SUPERSYMMETRY
SYMMETRY