EPJ Web of Conferences
Volume 85, 20154th International Workshop on Transverse Polarisation Phenomena in Hard Processes (TRANSVERSITY 2014)
|Number of page(s)||6|
|Published online||23 January 2015|
Azimuthal asymmetries in p↑p → jet π X
1 Nikhef and Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan 1081, NL-1081 HV Amsterdam, The Netherlands
2 Dipartimento di Fisica, Università di Cagliari, Cittadella Universitaria, I-09042, Monserrato ( CA ) Italy
3 Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari, C.P. 170, I-09042 Monserrato ( CA ) Italy
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Published online: 23 January 2015
We study the azimuthal asymmetries for the distributions of leading pions inside a jet produced inclusively in high-energy proton-proton collisions within the framework of the transverse momentum dependent generalized parton model. We present results for the RHIC center-of-mass energies √s = 200 and 500 GeV, mainly for forward jet rapidities, in particular for the two mechanisms which dominate such asymmetries: the Sivers and the Collins effects. We also briefly discuss the case of inclusive jet production and, adopting the socalled colour gauge invariant parton model, we propose a phenomenological analysis of the process dependence of the quark Sivers function.
© Owned by the authors, published by EDP Sciences, 2015
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