文章基本信息

标题：Accessing generalized TMDs through double Drell-Yan and double $\eta_c$ production processes
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作者：S.Bhattacharya ; A.Metz ; V.Kumar Ojha 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2018
卷号：316
DOI：10.22323/1.316.0149
语种：English
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Being the "mother distributions" of all types of two-parton correlation functions, generalized TMDs (GTMDs) have garnered a lot of attention. We address the important question of how to access GTMDs in physical processes. Recently, we have shown that quark GTMDs can in principle be probed through the exclusive pion-nucleon double Drell-Yan process, where the focus was on two particular GTMDs only. We now present new results concerning access to the remaining quark GTMDs in the same process. Moreover, we show that GTMDs for gluons can be explored via exclusive double production of pseudoscalar quarkonia ($\eta_c$ or $\eta_b$) in nucleon-nucleon collisions.