A Search for Single Photons at {PETRA}
Jun 3, 19868 pages
Published in:
- Phys.Lett.B 176 (1986) 247-254
- Published: 1986
Report number:
- LAL-86/11,
- DESY-86-050
View in:
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Abstract: (Elsevier)
A search for single photons, produced in e + e − collisions together with particles interacting only weakly with matter, has been performed using the CELLO detector operating at the PETRA storage ring. From the absence of any signal, an upper limit is set at 15 (90% CL) on the number of light neutrino species, and lower limits on various supersymmetric particle masses are derived. For massless photinos, mass degenerate scalar partners of the left- and right-handed electrons are excluded below 37.7 GeV/ c 2 (90% CL).- ELECTRON POSITRON: COLLIDING BEAMS
- COLLIDING BEAMS: ELECTRON POSITRON
- ELECTRON POSITRON: ANNIHILATION
- ANNIHILATION: ELECTRON POSITRON
- PHOTON: ELECTROPRODUCTION
- ELECTROPRODUCTION: PHOTON
- FINAL STATE: ONE-PHOTON
- ONE-PHOTON: FINAL STATE
- NEUTRINO: ASSOCIATED PRODUCTION
- ASSOCIATED PRODUCTION: NEUTRINO
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