Published August 21, 1986 | Version v1
Journal article

A search for single photons at PETRA

  • 1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.)
  • 2. Glasgow Univ. (UK)
  • 3. Hamburg Univ. (Germany, F.R.). 2. Inst. fuer Experimentalphysik
  • 4. Karlsruhe Univ. (T.H.) (Germany, F.R.)
  • 5. Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.)
  • 6. Max-Planck-Institut fuer Physik und Astrophysik, Muenchen (Germany, F.R.)
  • 7. Paris-11 Univ., 91 - Orsay (France). Lab. de l'Accelerateur Lineaire
  • 8. Paris-6 Univ., 75 (France). Lab. de Physique Nucleaire et de Hautes Energies
  • 9. Istituto Nazionale di Fisica Nucleare, Rome (Italy)
  • 10. Rome Univ. (Italy)
  • 11. CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
  • 12. Tel Aviv Univ. (Israel)

Description

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/c2 (90% CL). (orig.)

Additional details

Publishing Information

Journal Title
Phys. Lett., B
Journal Volume
176
Journal Issue
1/2
Series
Phys. Lett., B.
Journal Page Range
247-254
ISSN
0370-2693
CODEN
PYLBA

Optional Information

Collaborations
CELLO Collaboration.