Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/100666
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Sivers effect in two-hadron electroproduction
Author: Kotzinian, A.
Matevosyan, H.
Thomas, A.
Citation: Physical Review Letters, 2014; 113(6):062003-1-062003-5
Publisher: American Physical Society
Issue Date: 2014
ISSN: 0031-9007
1079-7114
Statement of
Responsibility: 
Aram Kotzinian, Hrayr H. Matevosyan, and Anthony W. Thomas
Abstract: The Sivers effect in single hadron semi-inclusive deep inelastic scattering on a transversely polarized nucleon describes the modulation of the cross section with the sine of the azimuthal angle between the produced hadron's transverse momentum and the nucleon spin (P(h) and φ(S), respectively). This effect is attributed to the so-called Sivers parton distribution function of the nucleon. We employ a simple phenomenological parton model to derive the relevant cross section for two-hadron production in semi-inclusive deep inelastic scattering including the Sivers effect. We show that the Sivers effect can be observed in such a process as sine modulations involving the azimuthal angles φ(T) and φ(R) of both the total and the relative transverse momenta of the hadron pair. The existence of the modulation with respect to φ(R) is new. Finally, we employ a modified version of the lepto Monte Carlo event generator that includes the Sivers effect to estimate the size of single spin asymmetries corresponding to these modulations. We show that sin(φ(R)-φ(S)) modulations can be significant, especially if we impose asymmetric cuts on the momenta of the hadrons in the pairs.
Rights: © 2014 American Physical Society
RMID: 0030009058
DOI: 10.1103/PhysRevLett.113.062003
Grant ID: http://purl.org/au-research/grants/arc/FL0992247
http://purl.org/au-research/grants/arc/CE110001004
Appears in Collections:Physics publications

Files in This Item:
File Description SizeFormat 
hdl_100666.pdfPublished version499.34 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.