Search for Direct Gamma Production at Low Transverse Momentum in 63-GeV pp Collisions
(1987) In Physical Review D 36(9). p.2615-2623- 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 .
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/dfe1c8a3-bfb7-4675-a5b6-79fedcc902f7
- author
- Åkesson, T. LU ; Almehed, Sverker LU ; Hedberg, V. LU ; Jarlskog, Göran LU ; Kulka, Karin ; Lörstad, Bengt LU and Willis, W. J.
- author collaboration
- organization
- publishing date
- 1987
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review D
- volume
- 36
- issue
- 9
- pages
- 2615 - 2623
- publisher
- American Physical Society
- external identifiers
-
- scopus:4243906452
- ISSN
- 2470-0010
- DOI
- 10.1103/PhysRevD.36.2615
- language
- English
- LU publication?
- yes
- id
- dfe1c8a3-bfb7-4675-a5b6-79fedcc902f7
- date added to LUP
- 2019-05-17 10:17:08
- date last changed
- 2023-04-09 12:11:18
@article{dfe1c8a3-bfb7-4675-a5b6-79fedcc902f7, 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 .}}, author = {{Åkesson, T. and Almehed, Sverker and Hedberg, V. and Jarlskog, Göran and Kulka, Karin and Lörstad, Bengt and Willis, W. J.}}, issn = {{2470-0010}}, language = {{eng}}, number = {{9}}, pages = {{2615--2623}}, publisher = {{American Physical Society}}, series = {{Physical Review D}}, title = {{Search for Direct Gamma Production at Low Transverse Momentum in 63-GeV pp Collisions}}, url = {{http://dx.doi.org/10.1103/PhysRevD.36.2615}}, doi = {{10.1103/PhysRevD.36.2615}}, volume = {{36}}, year = {{1987}}, }