Incoherent diffractive J/{Psi} production in high-energy nuclear deep-inelastic scattering

Journal Article · Wed Jun 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.065202· OSTI ID:21502812

Lappi, T ^[1]; Maentysaari, H ^[1]

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1. Department of Physics, P.O. Box 35, FI-40014 University of Jyvaeskylae (Finland)

We compute cross sections for incoherent diffractive J/{Psi} production in lepton-nucleus deep-inelastic scattering (DIS). The cross section is proportional to A in the dilute limit and to A{sup 1/3} in the black disk limit, with a large nuclear suppression due to saturation effects. The t dependence of the cross section, if it can be measured accurately enough, is sensitive to the impact parameter profile of the gluons in the nucleus and their fluctuations, a quantity that determines the initial conditions of a relativistic heavy-ion collision. The nuclear suppression in incoherent diffraction shows how the transverse spatial distribution of the gluons in the nucleus gradually becomes smoother at high energy. Since the values of the momentum transfer |t| involved are relatively large, this process should be easier to measure in future nuclear DIS experiments than coherent diffraction.

• OSTI ID: 21502812
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 6; Other Information: DOI: 10.1103/PhysRevC.83.065202; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
DEEP INELASTIC SCATTERING
DIFFRACTION
FLUCTUATIONS
GLUONS
HEAVY ION REACTIONS
IMPACT PARAMETER
J PSI-3097 MESONS
LEPTONS
MOMENTUM TRANSFER
NUCLEI
RELATIVISTIC RANGE
SPATIAL DISTRIBUTION
BOSONS
CHARMONIUM
COHERENT SCATTERING
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MESONS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
QUARKONIUM
SCATTERING
VARIATIONS
VECTOR MESONS