Kanazawa, K. and Koike, Y. (2013) Twist-3 approach to single transverse-spin asymmetry. Il nuovo cimento C, 36 (5). pp. 101-104. ISSN 1826-9885
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Abstract
We study the single transverse-spin asymmetry for the inclusive direct-photon and single-jet productions in the proton-proton collision based on the twist-3 mechanism in the collinear factorization. Taking into account all the effects from the twist-3 quark-gluon correlation functions inside a transversely polarized proton, we present a prediction for the asymmetries at the typical RHIC kinematics. In both processes we find sizable asymmetries in the forward region of the polarized proton while they are almost zero in the backward region. This implies that if one finds a nonzero asymmetry in the backward region in these processes, it should be ascribed wholely to the three-gluon correlations.
| Item Type: | Article |
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| Uncontrolled Keywords: | Perturbative calculations ; Polarization in interactions and scattering |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 06 May 2020 16:21 |
| Last Modified: | 06 May 2020 16:21 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18327 |
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