Direct photon production in pp and pp interactions at √s = 24.3 GeV

G. Sozzi, G. Ballocchi, A. Bernasconi, R. E. Breedon, L. Camilleri, R. L. Cool, P. T. Cox, P. Cushman, L. Dick, E. C. Dukes, B. Gabioud, F. Gaille, P. Giacomelli, D. Hubbard, J. B. Jeanneret, C. Joseph, W. Kubischta, J. F. Loude, E. Malamud, C. MorelP. Oberson, O. E. Overseth, J. L. Pagès, J. P. Perroud, D. Rüegger, R. W. Rusack, V. Singh, G. R. Snow, D. Steiner, L. Studer, M. T. Tran, A. Vacchi, G. Valenti, M. Werlen

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


Inclusive direct photon invariant cross sections have been measured in both pp and pp collisions at √s = 24.3 GeV at the CERN SPS, permitting the first measurement of the difference of the pp and pp cross sections. The direct photon cross section in pp collisions has been found to be systematically larger than that in pp collisions, which indicates a significant contribution of the qq annihilation term as predicted by theoretical calculations.

Original languageEnglish (US)
Pages (from-to)243-249
Number of pages7
JournalPhysics Letters B
Issue number1-2
StatePublished - Nov 4 1993

Fingerprint Dive into the research topics of 'Direct photon production in pp and pp interactions at √s = 24.3 GeV'. Together they form a unique fingerprint.

Cite this