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Title: Nuclear Filtering of Intrinsic Charm

Nuclei are transparent for a heavy intrinsic charm (IC) component of the beam hadrons, what leads to an enhanced nuclear dependence of open charm production at large Feynman x{sub F}. Indeed, such an effect is supported by data from the SELEX experiment published recently [1]. Our calculations reproduce well the data, providing strong support for the presence of IC in hadrons in amount less than 1%. Moreover, we performed an analysis of nuclear effects in J/{Psi} production and found at large x{sub F} a similar, albeit weaker effect, which does not contradict data.
Authors:
; ;  [1]
  1. Departamento de Fisica, Universidad Tecnica Federico Santa Maria, Instituto de estudios avanzados en ciencias en ingenieria, Centro Cientifico-Tecnologico de Valparaiso, Casilla 110-V, Valparaiso (Chile)
Publication Date:
OSTI Identifier:
21506758
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1296; Journal Issue: 1; Conference: 11. hadron physics international workshop, Maresias, Sao Paulo (Brazil), 21-26 Mar 2010; Other Information: DOI: 10.1063/1.3523174; (c) 2010 American Institute of Physics
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BEAMS; CHARM PARTICLES; COLLISIONS; FIELD THEORIES; HADRONS; J PSI-3097 MESONS; NUCLEI; PARTICLE PRODUCTION; QUARKS BOSONS; CHARMONIUM; ELEMENTARY PARTICLES; FERMIONS; HADRONS; MESONS; QUARKONIUM; VECTOR MESONS