High-energy hadron physics at J-PARC

Journal Article · Mon Oct 13 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3013077· OSTI ID:21251485

Kumano, S ^[1]

---

1. Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK) and Department of Particle and Nuclear Studies, Graduate University for Advanced Studies 1-1, Ooho, Tsukuba, Ibaraki, 305-0801 (Japan)

The J-PARC facility is near completion and experiments will start in 2009 on nuclear and particle physics projects. In this article, the J-PARC facility is introduced, and possible projects are discussed in high-energy hadron physics by using the primary proton beam of 30-50 GeV. There are proposed experiments on charm-production and Drell-Yan processes as well as single spin asymmetries for investigating quark and gluon structure of the nucleon and nuclei. Parton-energy loss could be studied in the Drell-Yan processes. There is also a proposal on hadron-mass modifications in a nuclear medium by using the proton beam. In addition, possible topics include transition from hadron to quark degrees of freedom by elastic pp scattering, color transparency by (p,2p), short-range correlation in nuclear force by (p,2pN), tensor structure functions for spin-one hadrons, fragmentation functions, and generalized partem distributions in the ERBL region although proposals are not written on these projects. If proton-beam polarization is attained, it is possible to investigate details of nucleon spin structure. In the last part of this article, our own studies are explained on partem distribution functions in connection with the J-PARC projects.

• OSTI ID: 21251485
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1056; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
COLOR MODEL
CP INVARIANCE
DEGREES OF FREEDOM
DISTRIBUTION FUNCTIONS
DRELL MODEL
ENERGY LOSSES
GEV RANGE 10-100
GLUONS
J-PARC
NUCLEAR FORCES
PARTICLE PRODUCTION
POLARIZED BEAMS
PROTON BEAMS
QUANTUM CHROMODYNAMICS
QUARK-GLUON INTERACTIONS
QUARKS
SPIN
STRUCTURE FUNCTIONS
SYMMETRY BREAKING