publication . Article . Preprint . 2014

Azimuthal asymmetries in $p^\uparrow p \to {\rm jet}\, \pi\, X$

Umberto D'Alesio; Cristian Pisano; Francesco Murgia;
Open Access
  • Published: 15 Dec 2014 Journal: EPJ Web of Conferences, volume 85, page 2,032 (eissn: 2100-014X, Copyright policy)
  • Publisher: EDP Sciences
Abstract
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 $\sqrt{s}$ = 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 so-called colour gauge invariant parton model, we propose a phenomenological analysis of the process dependence of the quark Sivers ...
Subjects
arXiv: Nuclear ExperimentHigh Energy Physics::Experiment
free text keywords: QC1-999, High Energy Physics - Phenomenology, Quark, Nuclear physics, Azimuth, Physics, Pi
Funded by
EC| HADRONPHYSICS3
Project
HADRONPHYSICS3
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
,
EC| QWORK
Project
QWORK
Quantum Chromodynamics at Work
  • Funder: European Commission (EC)
  • Project Code: 320389
  • Funding stream: FP7 | SP2 | ERC
23 references, page 1 of 2

[1] U. D'Alesio, F. Murgia, Prog. Part. Nucl. Phys. 61, 394 (2008), 0712.4328

[2] V. Barone, F. Bradamante, A. Martin, Prog. Part. Nucl. Phys. 65, 267 (2010), 1011.0909

[3] D.W Sivers, Phys. Rev. D41, 83 (1990); ibidem D43, 261 (1991)

[4] D. Boer, P.J. Mulders, Phys. Rev. D57, 5780 (1998), hep-ph/9711485

[5] J.C. Collins, Nucl. Phys. B396, 161 (1993), hep-ph/9208213

[6] P. J. Mulders, J. Rodrigues, Phys. Rev. D63, 094021 (2001), hep-ph/0009343

[7] U. D'Alesio, F. Murgia, C. Pisano, Phys. Rev. D83, 034021 (2011), 1011.2692

[8] U. D'Alesio, L. Gamberg, Z.B. Kang, F. Murgia, C. Pisano, Phys. Lett. B704, 637 (2011), 1108.0827

[9] U. D'Alesio, F. Murgia, C. Pisano, Phys. Part. Nucl. 45, no. 4, 676 (2014), 1307.4880

[10] N. Poljak (STAR Collaboration), Nuovo Cim. C35, 193 (2012), 1111.0755

[11] R. Fatemi (STAR Collaboration), AIP Conf. Proc. 1441, 233 (2012), 1206.3861

[12] F. Yuan, Phys. Rev. Lett. 100, 032003 (2008), 0709.3272

[13] M. Anselmino, M. Boglione, U. D'Alesio, A. Kotzinian, F. Murgia, A. Prokudin, Phys. Rev. D72, 094007 (2005), hep-ph/0507181

[14] M. Anselmino, M. Boglione, U. D'Alesio, A. Kotzinian, F. Murgia, A. Prokudin, C. Turk, Phys. Rev. D75, 054032 (2007), hep-ph/0701006

[15] M. Anselmino, M. Boglione, U. D'Alesio, A. Kotzinian, S. Melis, F. Murgia, A. Prokudin, C. Turk, Eur. Phys. J. A39, 89 (2009), 0805.2677

23 references, page 1 of 2
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