The Gluon Sivers Distribution: Status and Future Prospects
Joint Authors
Boer, Daniël
Lorcé, Cédric
Pisano, Cristian
Zhou, Jian
Source
Advances in High Energy Physics
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-04
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
We review what is currently known about the gluon Sivers distribution and what are the opportunities to learn more about it.
Because single transverse spin asymmetries in p↑p→πX provide only indirect information about the gluon Sivers function through the relation with the quark-gluon and tri-gluon Qiu-Sterman functions, current data from hadronic collisions at RHIC have not yet been translated into a solid constraint on the gluon Sivers function.
SIDIS data, including the COMPASS deuteron data, allow for a gluon Sivers contribution of natural size expected from large Nc arguments, which is O(1/Nc) times the nonsinglet quark Sivers contribution.
Several very promising processes to measure the gluon Sivers effect directly have been suggested, which besides RHIC investigations, would strongly favor experiments at AFTER@LHC and a possible future Electron-Ion Collider.
Due to the inherent process dependence of TMDs, the gluon Sivers TMD probed in the various processes are different linear combinations of two universal gluon Sivers functions that have different behavior under charge conjugation and that therefore satisfy different theoretical constraints.
For this reason both hadronic and DIS type of collisions are essential in the study of the role of gluons in transversely polarized protons.
American Psychological Association (APA)
Boer, Daniël& Lorcé, Cédric& Pisano, Cristian& Zhou, Jian. 2015. The Gluon Sivers Distribution: Status and Future Prospects. Advances in High Energy Physics،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1052500
Modern Language Association (MLA)
Boer, Daniël…[et al.]. The Gluon Sivers Distribution: Status and Future Prospects. Advances in High Energy Physics No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1052500
American Medical Association (AMA)
Boer, Daniël& Lorcé, Cédric& Pisano, Cristian& Zhou, Jian. The Gluon Sivers Distribution: Status and Future Prospects. Advances in High Energy Physics. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1052500
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052500