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Alves, G.A.; Amato, S.; Anjos, J.C.; Appel, J.A.; Astorga, J.; Bernard, T.; Bracker, S.B.; Cremaldi, L.M.; Darling, C.L.; Dixon, R.L.; Errede, D.; Gay, C.; Green, D.R.; Jedicke, R.; Karchin, P.E.; Kwan, S.; Lueking, L.J.; de Mello Neto, J.R.T.; Metheny, J.; Milburn, R.H.; de Miranda, J.M.; da Motta Filho, H.; Napier, A.; Passmore, D.; Rafatian, A.; dos Reis, A.C.; Ross, W.R.; Santoro, A.F.S.; Sheaff, M.; Souza, M.H.G.; Spalding, W.J.; Stoughton, C.; Streetman, M.E.; Summers, D.J.; Takach, S.F.; Wallace, A.; Wu, Z.
(Fermilab E769 Collaboration)1994
(Fermilab E769 Collaboration)1994
AbstractAbstract
[en] A leading charm meson is one with longitudinal momentum fraction, xF>0, whose light quark (or antiquark) is of the same type as one of the quarks in the beam particles. We report on the production asymmetry, A=[σ(leading-σ(nonleading)]/[σ(leading)+σ(nonleading)] as a function of xF. The data consist of 1500 fully reconstructed D± and D*± decays in Fermilab experiment E 769. We find a significant asymmetry for the production of charm quarks is not expected in perturbative quantum chromodynamics
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Journal Article
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BOSONS, CHARM PARTICLES, D MESONS, ELEMENTARY PARTICLES, FIELD THEORIES, HADRON-HADRON INTERACTIONS, HADRONS, INTERACTIONS, MESON-BARYON INTERACTIONS, MESON-NUCLEON INTERACTIONS, MESONS, PARTICLE INTERACTIONS, PION-NEUTRON INTERACTIONS, PION-NUCLEON INTERACTIONS, PION-PROTON INTERACTIONS, PSEUDOSCALAR MESONS, QUANTUM FIELD THEORY
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