Predicting $\sin(2\phi-\phi_{s})$ azimuthal asymmetry in pion-proton induced Drell-Yan process using holographic light-front QCD
Abstract
We compute the azimuthal asymmetry in the pion-nucleon induced Drell-Yan process within transverse momentum dependent factorization. We employ the holographic light-front pion wave functions to calculate its leading-twist transverse momentum dependent parton distributions (TMDs). The Boer-Mulders TMD of the pion is then convoluted with the transversity TMD of the proton evaluated in a light-front quark-diquark model constructed with the wave functions predicted by the soft-wall AdS/QCD to obtain the azimuthal asymmetry in the Drell-Yan process. The gluon rescattering is pivotal to predict nonzero pion Boer-Mulders TMD. We investigate the utility of a nonperturbative SU gluon rescattering kernel going beyond the usual approximation of perturbative U gluons. The holographic light-front QCD approach provides a powerful tool for exploring the role of nonperturbative QCD effects in the Drell-Yan process and may help to guide future experimental measurements.
Keywords
Cite
@article{arxiv.2308.14528,
title = {Predicting $\sin(2\phi-\phi_{s})$ azimuthal asymmetry in pion-proton induced Drell-Yan process using holographic light-front QCD},
author = {Bheemsehan Gurjar and Chandan Mondal},
journal= {arXiv preprint arXiv:2308.14528},
year = {2023}
}
Comments
11 pages, 3 figuers. arXiv admin note: text overlap with arXiv:1907.07095 by other authors