D-meson production from 400 GeV/c p-p interactions evidence for leading di-quarks?


Journal Article

Results of fitting the differential distributions in xF and pT2 of D mesons produced in 400 GeV/c p-p interactions to the form d2σ dxFdpT2∝(1-xF)n exp[-(pT2/〈pT 2〉 )] are discussed. The D+ distribution is found to be relatively hard [n=3.1±0.8〈Pt2〉=1.32±0.27 (GeV/c)2] and the D̄0 distribution relatively soft [n=8.1±1.9,〈pT2〉=0.62±0.14 (GeV/c)2] compared to the average for all D's [n=4.9±0.5,〈pT2〉=0.99±0.10 (GeV/c)2]. It is suggested that these distributions could reflect contribution of leading di-quarks in pp collisions. Comparison is made with evidence for leading quarks in charm production in 360 GeV/cπ-p interactions. © 1988.

Full Text

Duke Authors

Cited Authors

  • Aguilar-Benitez, M; Allison, WWM; Bailly, JL; Banerjee, S; Bartl, W; Begalli, M; Beilliere, P; Bizzarri, R; Briand, H; Canale, V; Caso, C; Castelli, E; Checchia, P; Chliapnikov, PV; Colino, N; Colwill, SJ; Contri, R; Crennell, D; De Angelis, A; De Billy, L; Defoix, C; Di Marco, R; Di Capua, E; Diez-Hedo, F; Dolbeau, J; Dumarchez, J; Eriksson, M; Falciano, S; Fernandez, C; Fisher, C; Fisyak, YV; Fontanelli, F; Frey, JR; Ganguli, SN; Gasparini, U; Gensch, U; Gentile, S; Gibaut, DB; Goshaw, AT; Grard, F; Gurtu, A; Hamatsu, R; Haupt, L; Hellman, S; Hernandez, JJ; Holmgren, SO; Houlden, M; Hrubec, J; Hughes, P; Huss, D; Iga, Y; Iori, M; Jegham, E; Johansson, KE; Josa, MI; Kalelkar, M; Kistenev, EP; Kitamura, S; Knauss, D; Kniazev, VV; Kowald, W; Kuhn, D; Laloum, M; Legros, P; Leutz, H; Lyons, L; Macdermott, M; Mason, P; Mazzucato, M; Michalon, A; Michalon-Mentzer, ME; Moa, T; Monge, R; Montanet, L; Naumann, T; Neuhofer, G; Nguyen, HK; Nilsson, S; Nowak, H; Oshima, N; Otter, G; Ouared, R; Comellas, JP; Patel, G; Pernicka, M; Pillete, P; Piredda, G; Plano, R; Poppleton, A; Poropat, P; Raghavan, R; Reucroft, S; Roberts, K; Robertson, WJ; Rohringer, H; Roth, A; Salicio, JM; Schulte, R; Sellden, B; Sessa, M

Published Date

  • January 28, 1988

Published In

Volume / Issue

  • 201 / 1

Start / End Page

  • 176 - 182

International Standard Serial Number (ISSN)

  • 0370-2693

Digital Object Identifier (DOI)

  • 10.1016/0370-2693(88)90103-7

Citation Source

  • Scopus