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Title: Spin correlations, QCD color transparency, and heavy-quark thresholds in proton-proton scattering

Journal Article · · Phys. Rev. Lett.; (United States)
;

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.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
OSTI ID:
5187079
Journal Information:
Phys. Rev. Lett.; (United States), Vol. 60:19
Country of Publication:
United States
Language:
English

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROTON-PROTON INTERACTIONS
ELASTIC SCATTERING
QUANTUM CHROMODYNAMICS
CHARM PARTICLES
COLOR MODEL
CROSS SECTIONS
ENERGY DEPENDENCE
GEV RANGE 01-10
GEV RANGE 10-100
MASS
MOMENTUM TRANSFER
PARTICLE PRODUCTION
PERTURBATION THEORY
QUARKS
QUASI-ELASTIC SCATTERING
RESONANCE SCATTERING
SPIN
STRANGE PARTICLES
THRESHOLD ENERGY
ANGULAR MOMENTUM
BARYON-BARYON INTERACTIONS
COMPOSITE MODELS
DIRECT REACTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
FIELD THEORIES
GEV RANGE
HADRON-HADRON INTERACTIONS
INELASTIC SCATTERING
INTERACTIONS
MATHEMATICAL MODELS
NUCLEAR REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
POSTULATED PARTICLES
PROTON-NUCLEON INTERACTIONS
QUANTUM FIELD THEORY
QUARK MODEL
QUASI-FREE REACTIONS
SCATTERING
645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties