Sivers and Boer-Mulders functions in Light-Cone Quark Models

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Results for the naive-time-reversal-odd quark distributions in a light-cone quark model are presented. The final-state interaction effects are generated via single-gluon exchange mechanism. The formalism of light-cone wave functions is used to derive general expressions in terms of overlap of wave-function amplitudes describing the different orbital angular momentum components of the nucleon. In particular, the model predictions show a dominant contribution from S- and P-wave interference in the Sivers function and a significant contribution also from the interference of P and D waves in the Boer-Mulders function. The favourable comparison with existing phenomenological parametrizations motivates further applications to describe azimuthal ... continued below

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Pasquini, Barbara & Yuan, Feng January 29, 2010.

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Results for the naive-time-reversal-odd quark distributions in a light-cone quark model are presented. The final-state interaction effects are generated via single-gluon exchange mechanism. The formalism of light-cone wave functions is used to derive general expressions in terms of overlap of wave-function amplitudes describing the different orbital angular momentum components of the nucleon. In particular, the model predictions show a dominant contribution from S- and P-wave interference in the Sivers function and a significant contribution also from the interference of P and D waves in the Boer-Mulders function. The favourable comparison with existing phenomenological parametrizations motivates further applications to describe azimuthal asymmetries in hadronic reactions.

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  • Journal Name: Physical Review D

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  • Report No.: LBNL-3051E
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1103/PhysRevD.81.114013 | External Link
  • Office of Scientific & Technical Information Report Number: 981741
  • Archival Resource Key: ark:/67531/metadc1015211

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  • January 29, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 18, 2017, 10:12 a.m.

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Pasquini, Barbara & Yuan, Feng. Sivers and Boer-Mulders functions in Light-Cone Quark Models, article, January 29, 2010; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1015211/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.