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 language | English (US) |
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| Title of host publication | Structure of the Nucleon at Large Bjorken x - 2nd International Workshop on the Structure of the Nucleon at Large Bjorken x, HiX2004 |
| Pages | 243-247 |
| Number of pages | 5 |
| Volume | 747 |
| DOIs | |
| State | Published - Dec 1 2005 |
| Event | 2nd International Workshop on the Structure of the Nucleon at Large Bjorken x, HiX2004 - Marseille, France Duration: Jul 26 2004 → Jul 28 2004 |
Other
| Other | 2nd International Workshop on the Structure of the Nucleon at Large Bjorken x, HiX2004 |
|---|---|
| Country/Territory | France |
| City | Marseille |
| Period | 7/26/04 → 7/28/04 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy