Göran Jarlskog
Professor emeritus
Search for Direct Gamma Production at Low Transverse Momentum in 63-GeV pp Collisions
Author
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