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Torsten ÅKESSON

Torsten Åkesson

Professor Emeritus / Expert

Torsten ÅKESSON

Search for Direct Gamma Production at Low Transverse Momentum in 63-GeV pp Collisions

Author

  • T. Åkesson
  • Sverker Almehed
  • V. Hedberg
  • Göran Jarlskog
  • Karin Kulka
  • Bengt Lörstad
  • W. J. Willis

Summary, in English

We have searched for direct photons of low PT (≤1.0 GeV/c) at θc.m.=90° in pp collisions at √s =63 GeV. We used two independent methods: direct detection in NaI crystals and conversion to e+e− pairs. No signal is observed; the photon spectrum is well described by the decay of hadrons. The result is consistent with a direct low-PT photon signal reported at √s =12 GeV, but excludes a rapid growth of soft-photon production with √s .

Department/s

  • Particle and nuclear physics

Publishing year

1987

Language

English

Pages

2615-2623

Publication/Series

Physical Review D

Volume

36

Issue

9

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 2470-0010