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Spin Correlations, QCD Color Transparency, and Heavy-Quark Thresholds in Proton-Proton Scattering
Author(s) -
Stanley J. Brodsky,
Guy F. de Téramond
Publication year - 1988
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.60.1924
Subject(s) - physics , quantum chromodynamics , perturbative qcd , particle physics , proton , scattering , quark , nuclear physics , spin (aerodynamics) , proton spin crisis , elastic scattering , hadron , quantum mechanics , thermodynamics
The strikingly large spin-spin correlation A/sub N//sub N/ observed in pp elastic scattering at p/sub lab/ = 2.5 and 11.75 GeVc and the unexpected energy dependence of absorptive corrections to quasielastic proton-proton scattering in a nuclear target can be interpreted in terms of two J = L = S = 1, B = 2 resonance structures associated with the strange- and charmed-particle production thresholds, interfering with a perturbative QCD background. The results provide support for the ''color-transparency'' phenomenon predicted in perturbative QCD away from resonances or heavy-quark thresholds.

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