Probing correlations in the large x proton wave function at pp and pA colliders

Journal Article · Thu Feb 10 04:00:00 EST 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1871670· OSTI ID:20630627

Strikman, Mark ^[1]

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1. 104 Davey lab, Penn State University, University Park, PA 16802 (United States)

We discuss several examples of how the transverse spatial distribution of partons in the nucleon, as well as multiparton correlations, can be probed by observing hard processes (dijets) in high-energy pp (p-barp) and pA (dA) collisions. Such studies can complement the information gained from measurements of hard exclusive processes in ep scattering. The transverse spatial distribution of partons determines the distribution over pp impact parameters of events with hard dijet production. Correlations in the transverse positions of partons can be studied in multiple dijet production. We find that the correlation cross section measured by the CDF Collaboration, {sigma}{sub eff} = 14.5 {+-} 1.7{sub -2.3}{sup +1.7} mb, can be explained by 'constituent quark' type quark-gluon correlations with r q {approx_equal} rN/3, as suggested by the instanton liquid model of the QCD vacuum. Longitudinal and transverse multiparton correlations can be separated in a model-independent way by comparing multiple dijet production in pp and pA collisions.

• OSTI ID: 20630627
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 747; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIPROTONS
CORRELATIONS
CROSS SECTIONS
DEUTERON REACTIONS
ELECTRON-PROTON INTERACTIONS
FERMILAB COLLIDER DETECTOR
FOUR MOMENTUM TRANSFER
GLUONS
IMPACT PARAMETER
PARTICLE KINEMATICS
PARTONS
PROTON REACTIONS
PROTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUARKS
SCATTERING
SPATIAL DISTRIBUTION
WAVE FUNCTIONS