Single-spin asymmetries in inclusive deep inelastic scattering and multiparton correlations in the nucleon

Metz, A. and Pitonyak, D. and Schaefer, A. and Schlegel, M. and Vogelsang, W. and Zhou, J. (2012) Single-spin asymmetries in inclusive deep inelastic scattering and multiparton correlations in the nucleon. PHYSICAL REVIEW D, 86 (9): 094039. ISSN 1550-7998,

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Abstract

Transverse single-spin asymmetries in inclusive deep inelastic lepton-nucleon scattering can be generated through multiphoton exchange between the leptonic and the hadronic part of the process. Here we consider the two-photon exchange and mainly focus on the transverse target spin asymmetry. In particular, we investigate the case where two photons couple to different quarks. Such a contribution involves a quark-photon-quark correlator in the nucleon, which has a (model-dependent) relation to the Efremov-Teryaev-Qiu-Sterman quark-gluon-quark correlator T-F. Using different parametrizations for T-F we compute the transverse target spin asymmetries for both a proton and a neutron target and compare the results to recent experimental data. In addition, potential implications for our general understanding of single-spin asymmetries in hard scattering processes are discussed.

Item Type: Article
Uncontrolled Keywords: POLARIZED PROTON-BEAM; DRELL-YAN; PARTON DISTRIBUTIONS; STATE INTERACTIONS; ANALYZING POWER; SIVERS; DIS; 2-PHOTON-EXCHANGE; INVARIANCE; COLLISIONS;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer
Depositing User: Dr. Gernot Deinzer
Date Deposited: 04 May 2020 06:46
Last Modified: 04 May 2020 06:46
URI: https://pred.uni-regensburg.de/id/eprint/17761

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