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

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Abstract

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 (p̄p) 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, σ eff=14.5±1.7 -2.3 +1.7mb, can be explained by "constituent quark" type quark-gluon correlations with r q ≈ r N/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.

Original languageEnglish (US)
Title of host publicationStructure of the Nucleon at Large Bjorken x - 2nd International Workshop on the Structure of the Nucleon at Large Bjorken x, HiX2004
Pages243-247
Number of pages5
Volume747
DOIs
StatePublished - Dec 1 2005
Event2nd International Workshop on the Structure of the Nucleon at Large Bjorken x, HiX2004 - Marseille, France
Duration: Jul 26 2004Jul 28 2004

Other

Other2nd International Workshop on the Structure of the Nucleon at Large Bjorken x, HiX2004
CountryFrance
CityMarseille
Period7/26/047/28/04

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Strikman, M. (2005). Probing correlations in the large x proton wave function at pp and pA colliders. In Structure of the Nucleon at Large Bjorken x - 2nd International Workshop on the Structure of the Nucleon at Large Bjorken x, HiX2004 (Vol. 747, pp. 243-247) https://doi.org/10.1063/1.1871670