Comparison of low-PTphoton production in high- and low-multiplicity collisions at the CERN ISR

Autor: L. K. Resvanis, S. Eidelman, M. Sullivan, T. P. A. Åkesson, S. Almehed, J. A. Thompson, E. G. Anassontzis, G. Damgaard, H. J. Specht, Y. Choi, Pavlos Ioannou, N. A. McCubbin, A. Kalinovsky, A. A. Carter, H. Bøggild, S. Mayburov, B. Lörstad, W. J. Willis, W. Molzen, Michael Albrow, J. R. Carter, Vincent Hedberg, Borge Svane Nielsen, A. Shemleva, Ulrich Goerlach, P. Nevsky, I. Mannelli, V. Chernyatin, Richard Batley, Yona Oren, Odette Benary, Olga Botner, T. Jensen, D. Lissauer, R. Møller, Horst Breuker, Boris Dolgoshein, Göran Jarlskog, Hans Henrik Thodberg, Y. Goloubkov, K. H. Hansen, K. Kulka, I. Gavrilenko, A. Markou, B. Callen, V. Sidorov, E. Dahl-Jensen, W. E. Cleland, I. Stumer, I. Dahl-Jensen, C.W. Fabjan, Volker D. Burkert, R. Carosi, L. H. Olsen, V. Kantserov, Christine Kourkoumelis, S. Dagan, R. Kroeger, S. Katsanevas, J.G. Williamson, Jurgen Schukraft
Rok vydání: 1988
Předmět:
Zdroj: Physical Review D. 38:2687-2694
ISSN: 0556-2821
DOI: 10.1103/physrevd.38.2687
Popis: Low-transverse-momentum photon production at the CERN ISR is compared in high- and low-multiplicity events. High-transverse-energy pp collisions and low-multiplicity ..cap alpha cap alpha.. and pp collisions are studied. Relative photon-to-charged-track production is found to be the same in pp minimum bias, ..cap alpha cap alpha.. minimum bias, and pp high-transverse-energy collisions, to within 15%. No low-P/sub T/ excess is seen; the limits are dominated by systematic uncertainties.
Databáze: OpenAIRE