Drell-Yan studies in ppbar reactions at FAIR

Journal Article · Fri Nov 15 04:00:00 EST 2013 · Physics of Particles and Nuclei

DOI:https://doi.org/10.1134/S1063779613060063· OSTI ID:22977228

Destefanis, M. ^[1]

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1. Universitá degli Studi di Torino and INFN Torino, Torino (Italy)

The nucleonic structure is far to be completely understood. A transverse momentum dependent description of the nucleon structure is a crucial milestone for several forthcoming studies in a wide range of experimental scenarios. By mean of antiproton beams, eventually polarized, that will be available at the future FAIR facility with a beam momentum up to 15 GeV/ c, the non-perturbative region of the QCD could be accessed. One of the main goal of the forthcoming experiments at FAIR is the investigation of those Drell-Yan lepton pairs produced in proton-antiproton annihilations, taking advantage of the high expected luminosities. Drell-Yan studies are a unique tool to access the spin depending properties of the nucleon, and namely its transverse degrees of freedom. Transverse Momentum Dependent (TMD) Parton Distribution Functions (PDFs), in particular the Boer-Mulders, the Sivers and the Transversity distribution functions, could be widely investigated by mean of the corresponding experimental azimuthal asymmetries. In later stages of FAIR, single- and double-spin asymmetries could be investigated as well. The Drell-Yan physics program which could be accessed at FAIR will be discussed in details, with a particular focus on the PANDA experimental scenario.

• OSTI ID: 22977228
• Journal Information: Physics of Particles and Nuclei, Journal Name: Physics of Particles and Nuclei Journal Issue: 6 Vol. 44; ISSN 1063-7796
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIPROTON BEAMS
BEAM LUMINOSITY
DEGREES OF FREEDOM
DISTRIBUTION FUNCTIONS
DRELL MODEL
PAIR PRODUCTION
QUANTUM CHROMODYNAMICS
TRANSVERSE MOMENTUM