scholarly journals Single-transverse-spin asymmetries: From deep inelastic scattering to hadronic collisions

2005 ◽  
Vol 72 (5) ◽  
Author(s):  
Werner Vogelsang ◽  
Feng Yuan
2014 ◽  
Vol 25 ◽  
pp. 1460008
Author(s):  
PENG SUN ◽  
FENG YUAN

In this talk, we presented our recent studies of the QCD evolution effects on the transverse momentum dependent observables in semi-inclusive deep inelastic scattering and Drell-Yan lepton pair productions. The evolution is first tested for the spin average cross sections, and then applied to the Sivers single transverse spin asymmetries. The latter are among the important topics in hadronic physics research in recent years.


2005 ◽  
Vol 94 (20) ◽  
Author(s):  
V. Yu. Alexakhin ◽  
Yu. Alexandrov ◽  
G. D. Alexeev ◽  
A. Amoroso ◽  
B. Badełek ◽  
...  

2000 ◽  
Vol 476 (3-4) ◽  
pp. 471-476 ◽  
Author(s):  
A. Harindranath ◽  
Asmita Mukherjee ◽  
Raghunath Ratabole

1997 ◽  
Vol 56 (9) ◽  
pp. 6021-6024 ◽  
Author(s):  
M. Anselmino ◽  
E. Leader ◽  
F. Murgia

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Daniël Boer ◽  
Cédric Lorcé ◽  
Cristian Pisano ◽  
Jian Zhou

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 inp↑p→πXprovide 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 largeNcarguments, which isO(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.


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