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- Åkesson, T., et al.
(författare)
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Search for Direct Gamma Production at Low Transverse Momentum in 63-GeV pp Collisions
- 1987
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Ingår i: Physical Review D. - 2470-0010. ; 36:9, s. 2615-2623
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Tidskriftsartikel (refereegranskat)abstract
- 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 .
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