Inclusive properties of D mesons produced in 360 GeV interactions

Aguilar-Benı́tez, M.; Allison, W.W.M.; Baland, J. F.; Banerjee, S.; Bartl, W.; Beillère, P.; Bengalli, M.; Borreani, G.; Bizzarri, R.; Briand, H.; Brun, R.; Bugg, W.; Caso, C.; Castaño, B.; Castelli, E.; Checchia, P.; Chliapnikov, P.; Colwill, S. J.; Contri, R.; Crennell, D.; Cresti, M.; Angelis, A. De; Billy, L. de; Defoix, C.; Capua, E. Di; Marco, R.; Dolbeau, J.; Dumarchez, J.; Falciano, S.; Fernández, C.; Fisher, Colin; Fisjak, Yu.; Fontanelli, F.; Fry, J. R.; Ganguli, S. N.; Gasparini, U.; Gentile, S.; Goshaw, A. T.; Grard, F.; Gurtu, A.; Handler, T.; Hamatsu, R.; Hart, E. L.; Haupt, L.; Hellman, S.; Hernández, J. J.; Hervé, A.; Holmgren, S. O.; Houlden, M.; Hrubec, J.; Hughes, P.; Iori, M.; Jegham, E.; Johansson, Erik; Kistenev, E.; Kitamura, S.; Kühn, D.; Knjasev, V.; Kurnosenko, A. I.; Guevara, P. Ladrón de; Laloum, M.; Leutz, H.; Lutz, P.; Lyons, L.; MacDermott, M.; Malhotra, P.K.; Marchetto, F.; Marel, G.; Marin, J. C.; Marzano, F.; Mason, P.; Mazzucato, M.; Michalon, A.; Michalon-Mentzer, M.E.; Moa, T.; Montanet, L.; Morton, Josephine; Neuhofer, G.; Nguyen, H. K.; Nilsson, S.; Nowak, H.; Oshima, N.; Otter, G.; Patel, G. D.; Pernicka, M.; Pilette, P.; Pinori, C.; Piredda, G.; Plano, R. J.; Poppleton, A.; Poropat, P.; Raghavan, R.; Ransone, G.; Reucroft, S.; Richardson, J.; Rinaudo, S.; Roberts, K.; Rohringer, H.; Schlütter, H.; Schmiedmayer, Jörg; Schouten, M.; Schulte, R.; Selldén, B.; Sessa, M.; Shankar, Karthik; Squarcia, S.; Stamer, P.; Stopchenko, K. M.; Struczinski, W.; Subramanian, S.; Takahashi, K.; Touboul, M. C.; Trevisan, U.; Troncon, C.; Tsurugai, T.; Vilain, P.; Vonck, B.; Whyman, B. M.; Wickens, J.; Willmott, C.; Wright, P. R. S.; Zumerle, G.

doi:10.1016/0370-2693(85)90787-7

Cited by 73 publications

(18 citation statements)

References 11 publications

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“…The delta-function model assumes that the charmed quark coalesces with a low-x spectator sea quark or a low momentum secondary quark such that the charmed quark retains its momentum [18]. This model is more consistent with low p T charmed hadroproduction data [25,26,27] than Peterson fragmentation.…”

Section: Leading-twist Productionmentioning

confidence: 99%

Charmed hadron asymmetries in the intrinsic charm coalescence model

Vogt

Brodsky

1996

Nuclear Physics B

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Fermilab experiment E791, measuring charmed hadron production in π − A interactions at 500 GeV with high statistics, has observed a strong asymmetry between the hadroproduction cross sections for leading D mesons which contain projectile valence quarks and the nonleading charmed mesons without projectile valence quarks. Such correlations of the charge of the D meson with the quantum numbers of the beam hadron explicitly contradict the factorization theorem in perturbative QCD which predicts that heavy quarks hadronize through a jet fragmentation function that is independent of the initial state. The E791 experiment also measures Λ c /Λ c and D s /D s production asymmetries as well as asymmetries in DD pair production. We examine these asymmetries and the fractional longitudinal momentum, x F , distributions for single and pairs of charmed hadrons within a two-component model combining leading-twist gg and qq fusion subprocesses with charm production from intrinsic heavy quark Fock states. A key feature of this analysis is intrinsic charm coalescence, the process by which a charmed quark in the projectile's Fock state wavefunction forms charmed hadrons by combining with valence quarks of similar rapidities.

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Section: Leading-twist Productionmentioning

confidence: 99%

Charmed hadron asymmetries in the intrinsic charm coalescence model

Vogt

Brodsky

1996

Nuclear Physics B

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“…Muchos experimentos han medido la sección eficaz total de charm principalmente para los haces de protones y π, los experimentos con el haz de protones son NA32, NA27, E743, E653, E769, y HERA-B [1,2,3,4,5,6], respectivamente, los experimentos XXXVIII Introducción y Motivación para el haz de π son NA27 [7], NA32 [1,8], E653 [9], E769 [5], WA92 [10], y E791 [11], muchos de estos resultados son sólo para los mesones D (cargados y neutrales). Pero para obtener la sección eficaz total de charm además de sumar los valores obtenidos de los mesones D (neutrales y cargados), se tienen que tomar en cuenta la producción de otros hadrones con charm (D s , Λ c y otros bariones charm).…”

Section: Introducción Y Motivaciónunclassified

Measurement of the cross section of charmed hadrons and the nuclear dependence alpha

Blanco-Covarrubias

2009

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“…Some years ago a simple non-perturbative mechanism of leading charmed mesons production was considered [3] for data analysis of CERN experiment on D-mesons production in π − p-collisions [4]. It was demonstrated that presence of a valence quark from the initial pion (so-called leading quark state) in the final charmed meson is a necessary but insufficient condition for the meson to be a leading one.…”

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confidence: 99%

“…This formula was used for fixing distribution functions f π vi by means of comparison with the data on leading D-meson production in π − p-collisions at √ s = 26 GeV [4].…”

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confidence: 99%