Summary of Physics Prospects for Polarized Nucleon-Nucleon Scattering at HERA-N

Abstract

The physics scope of polarized nucleon-nucleon collisions originating from an internal polarized target in the HERA proton beam is summarized. Based on 240 pb^{-1} integrated luminosity at 40 GeV c.m. energy, statistical sensitivities are given over a wide (x_F, p_T)-range for a variety of inclusive and exclusive final states. By measuring single spin asymmetries unique information can be obtained on higher twist contributions and their p_T-dependence. From double spin asymmetries in both photon and J/psi production it appears possible to measure the polarized gluon distribution in the range 0.1 < x_{gluon} < 0.4 with a good statistical accuracy. Drell-Yan pair production asymmetries in doubly longitudinal mode, measurable in the mass range 3-10 GeV, allow discrimination between different parametrizations of the polarized light sea quark distributions. In doubly transverse mode access to the quark transversity distribution might become possible. Statistically significant results can be expected in the elastic channel.

arXiv comment18 pages, Latex-2e, elsart.sty, epsfig.sty, rotating.sty, 12 .eps figures. Invited talk presented by W.-D. Nowak at the 2nd ELFE Workshop (St. Malo, September 1996)

References in corpus (6)

• Single spin asymmetry for $p^{\uparrow }p\to \pi X$ in perturbative QCD
• Measurements of the Proton and Deuteron Spin Structure Function g2 and Asymmetry A2
• A Next-to-Leading Determination of the Singlet Axial Charge and the Polarized Gluon Content of the Nucleon
• Novel Quark Fragmentation Functions and the Nucleon's Transversity Distribution
• Scale Dependence and Small-x Behaviour of Polarized Parton Distributions
• Single spin asymmetry of vector meson production in the string model

Cited by in corpus (8)

• Spin Physics and Polarized Structure Functions
• The Spin Structure of the Nucleon
• Polarized Lambda-Baryon Production in pp Collisions
• Soffer's inequality and the transversely polarized Drell-Yan process at next-to-leading order
• Transverse Double-Spin Asymmetries for Muon Pair Production in pp-Collisions
• Double Spin Asymmetries in P-wave Charmonium Hadroproduction
• Quarkonium Production through Hard Comover Rescattering in Polarized and Unpolarized pp Scattering
• Transverse Double-Spin Asymmetries for Dimuon Production in pp Collisions