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Studying the sivers function by model calculations
Courtoy, Aurore; Scopetta, S.; Vento, V.
2009In AIP Conference Proceedings, 1105, p. 193-196
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Keywords :
DIS; Neutron structure; Transversity
Abstract :
[en] A formalism is presented to evaluate the Sivers function in constituent quark models. A non-relativistic reduction of the scheme is performed and applied to the Isgur-Karl model. The sign for the u and d flavor contributions that we obtained turns out to be opposite. The Burkardt Sum Rule is fulfilled to a large extent. After the estimate of the QCD evolution of the results from the momentum scale of the model to the experimental one, a reasonable agreement with the available data is obtained. © 2009 American Institute of Physics.
Disciplines :
Physics
Author, co-author :
Courtoy, Aurore ;  Departamento de Física Teórica, Instituto de Física Corpuscular, Universidad de Valencia-CSIC, E-46100 Burjassot (Valencia), Spain
Scopetta, S.;  Dipartimento di Fisica, Universitá degli Studi di Perugia, via A. Pascoli, 06100 Perugia, Italy, INFN, sezione di Perugia, via A. Pascoli, 06100 Perugia, Italy
Vento, V.;  TH-Division, PH Department, CERN, CH-1211 Geneve 23, Switzerland > Departamento de Física Teórica, Instituto de Física Corpuscular, Universidad de Valencia-CSIC, E-46100 Burjassot (Valencia), Spain
Language :
English
Title :
Studying the sivers function by model calculations
Publication date :
2009
Event name :
International Workshop on Diffraction in High Energy Physics, DIFFRACTION 2008
Event date :
9 September 2008 through 14 September 2008
Audience :
International
Journal title :
AIP Conference Proceedings
ISSN :
0094-243X
eISSN :
1551-7616
Publisher :
American Institute of Physics
Volume :
1105
Pages :
193-196
Peer reviewed :
Peer Reviewed verified by ORBi
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since 11 July 2012

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