Year: 2017
Type: article
Abstract: We study the color entanglement like effect for T-odd cases in collinear twist-3 factorization. For an example, we compute the transverse single spin asymmetry for direct photon production in pp collisions in a pure collinear twist-3 approach. By analyzing the gauge link structure of the collinear gluon distribution on the unpolarized target side, we demonstrate how the color entanglement--like effect arises in the presence of the additional gluon attachment from a polarized projectile. The result is consistent with that obtained from a hybrid approach calculation.
Author: Jian Zhou
Institution: Shandong University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Award: G3795359356
OpenAlex ID: W2728841008