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Type: Journal article
Title: Charmonium absorption by nucleons
Author: Sibirtsev, A.
Tsushima, K.
Thomas, A.
Citation: Physical Review C: Nuclear Physics, 2001; 63(4):044906-1-044906-13
Publisher: American Physical Soc
Issue Date: 2001
ISSN: 0556-2813
Organisation: Special Research Centre for the Subatomic Structure of Matter
Statement of
A. Sibirtsev, K. Tsushima, and A. W. Thomas
Abstract: J/Ψ dissociation in collisions with nucleons is studied within a boson-exchange model and the energy dependence of the dissociation cross section is calculated from the threshold for ΛcD̅ production to high energies. We illustrate the agreement of our results with calculations based on short-distance QCD and Regge theory. The compatibility between our calculations and the data on J/Ψ photoproduction on a nucleon is discussed. We evaluate the elastic J/Ψ+N cross section using a dispersion relation and demonstrate the overall agreement with the predictions from QCD sum rules. Our results are compatible with the phenomenological dissociation cross section evaluated from the experimental data on J/Ψ production from γ+A, p+A, and A+A collisions.
Rights: © 2001 The American Physical Society
DOI: 10.1103/PhysRevC.63.044906
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Special Research Centre for the Subatomic Structure of Matter publications

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