Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-12-07
Phys.Rev.D73:034018,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages in RevTeX; 7 figures in eps format; improved text, added reference
Scientific paper
10.1103/PhysRevD.73.034018
We present Monte Carlo simulations of the Sivers effect in the polarized Drell-Yan $pp^\uparrow \to \mu^+ \mu^- X$ process at the center-of-mass energy $\sqrt{s}=200$ GeV reachable at the Relativistic Heavy-Ion Collider (RHIC) of BNL. We use two different parametrizations for the Sivers function, one deduced from the analysis of Semi-Inclusive Deep-Inelastic Scattering (SIDIS) data at much lower energies, and another one constrained by the RHIC data for the $pp^\uparrow \to \pi X$ process at the same energy. For a given luminosity of $10^{32}$ cm$^{-2}$ sec$^{-1}$, we explore the necessary conditions to reach a statistical accuracy that allows to extract unambiguous information on the structure of the Sivers function. In particular, we consider the feasibility of the test on its predicted universality property of changing sign when switching from SIDIS to Drell-Yan processes.
Bianconi Andrea
Radici Marco
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