Charm D-meson production in 360 GeV/c pp interactions; comparison with π-p at the same energy

Aguilar Benitez, M.; Allison, W. W. H.; Bagnaia, P.; Bailly, J.; Bertrand Coremans, G.; Bizzarri, R.; Boratav, M.; Bruyant, F.; Ciapetti, G.; Crennell, D.; Di Capua, E.; Dibon, H.; Dionisi, C.; Dumarchez, J.; Etienne, F.; Fisher, C.; Fisjak, Y.u. V.; Gentile, S.; Hernandez, J.; Herquet, P.; Holmgren, S. O.; Hrubec, J.; Hugies, P. T.; Johansson, K. E.; Kistenev, E. P.; Kittel, W.; Kurtz, N.; Ladron de Guevara, P.; Lemonne, J.; Leutz, H.; Loverre, P.; Lyons, L.; Macdermott, M.; Marchetto, F.; Marzano, F.; Mazzucato, M.; Menichetti, E.; Michalon Mentzer, M.; Michalon, A.; Moa, T.; Montanet, L.; Neuhofer, G.; Nilsson, S.; Petrovich, Y.u. L.; Pilette, P.; Pinori, C.; Piredda, G.; Poppleton, A.; Poropat, P.; Porth, P.; Regler, M.; Reucroft, S.; Richardson, J.; Rohringer, H.; Rossi, P.; Salicio, J.; Tavernier, S.; Toet, D; Touboul, M. C.; Touchard, A. M.; Troncon, C.; Ventura, L.; Vilain, P.; Wright, P. R. S.; Zanello, L.; Zolobov, G. V.; Zotto, P.; Zumerle, G.; CAUZ, Diego

Charm D-meson production in 360 GeV/c pp interactions; comparison with π-p at the same energy

Aguilar Benitez, M.

•

Allison, W. W. H.

•

Bagnaia, P.

altro

CAUZ, Diego

1983

journal article

Periodico

PHYSICS LETTERS. SECTION B

Abstract

Charm D-meson production in 360 GeV pp interactions has been studied using the high-resolution hydrogen bubble chamber LEBC and the European Hybrid Spectrometer. D-mesons are produced with a differential cross section of the form d2σdx dpT2δ(1-x)n exp (-apT2), withn=1.8± 0.8 and a=1.1±0.03 GeV/c−2 for the Feynman x and Transverse momentum pT behaviour. The inclusive particle cross section for D and D̄;measured to be: σ(D/D̄) = (56−12 25μb (for all x). The ΛcD̄ cross section can be estimated to be ≈20μb. No strong correlation is observed between DD̄ pairs. The results are compared with results from a study of D-meaon production in 360 GeV/c π−p interactions also using LEBC-EHS.