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Cross sections and transverse single-spin asymmetries in forward jet production from proton collisions at s = 500 GeV

2015; Elsevier BV; Volume: 750; Linguagem: Inglês

10.1016/j.physletb.2015.10.001

1873-2445

L. C. Bland, E. J. Brash, H.J. Crawford, A. A. Derevschikov, K. A. Drees, J. Engelage, C. Folz, M. Jones, E. G. Judd, X. Li, Nilanga Liyanage, Y. I. Makdisi, N. G. Minaev, R. N. Munroe, L. V. Nogach, A. Ogawa, C.F. Perdrisat, C. Perkins, M. Planinić, V. Punjabi, G. Schnell, G. Simatovic, T.G. Throwe, C. Van Hulse, A. Vasiliev,

Quantum Chromodynamics and Particle Interactions

Measurements of the production of forward jets from transversely polarized proton collisions at s=500 GeV conducted at the Relativistic Heavy Ion Collider (RHIC) are reported. Our measured jet cross section is consistent with hard scattering expectations. Our measured analyzing power for forward jet production is small and positive, and provides constraints on the Sivers functions that are related to partonic orbital angular momentum through theoretical models.