Flavor dependence of the boer-mulders function and its influence on azimuthal and single-spin asymmetries in semi-inclusive dis

Leonard P. Gamberg, Gary R. Goldstein, Marc Schlegel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The chiral-odd and time reversal-odd transverse momentum dependent (TMD) parton distribution h1 , the so-called Boer-Mulders function, is calculated in the diquark spectator model for both an active up- And down-quark. In particular the signs of h⊥(u)1 and h ⊥(d)1 are of interest as they were predicted in other works, and the result of this analysis is consistent with these predictions. Both avors of the Boer-Mulders function contribute to observables such as the azimuthal cos(2φ) asymmetry in semi-inclusive DIS. Using the results of this analysis for h ⊥(u)1 and h ⊥(d)1 and recent calculations of the Collins fragmentation function in a similar spectator model, phenomenological predictions for the cos(2φ) asymmetry are presented. In addition, the chiral-odd but time-reversal even TMD h1L is computed in the diquark spectator model, and is used to present predictions for the sin(2φ) single-spin asymmetry for a longitudinally polarized target in SIDIS.

Original languageEnglish (US)
Title of host publicationExclusive Reactions at High Momentum Transfer - Proceedings of the International Workshop
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages401-411
Number of pages11
ISBN (Print)9812796940, 9789812796943
DOIs
StatePublished - 2008
Event2007 International Workshop on Exclusive Reactions at High Momentum Transfer - Newport News, VA, United States
Duration: May 21 2007May 24 2007

Publication series

NameExclusive Reactions at High Momentum Transfer - Proceedings of the International Workshop

Other

Other2007 International Workshop on Exclusive Reactions at High Momentum Transfer
CountryUnited States
CityNewport News, VA
Period5/21/075/24/07

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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