Search for single photons from radiative neutrino or supersymmetric particle production

Conference · Sun Jun 01 00:00:00 EDT 1986

OSTI ID:5555023

Ford, W T; Camporesi, T; Hurst, R B; Band, H R; Ash, W W; Chadwick, G B; Groom, D E; Verdini, P G; Delfino, M C; Johnson, J R

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
• Resource Relation: Conference: 23. international conference on high-energy physics, Berkeley, CA, USA, 16 Jul 1986
• Country of Publication: United States
• Language: English

Related Subjects

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