TY - GEN

T1 - Flavor dependence of the boer-mulders function and its influence on azimuthal and single-spin asymmetries in semi-inclusive dis

AU - Gamberg, Leonard P.

AU - Goldstein, Gary R.

AU - Schlegel, Marc

PY - 2008

Y1 - 2008

N2 - The chiral-odd and time reversal-odd transverse momentum dependent (TMD) parton distribution h⊥1 , 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 h⊥1L 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.

AB - The chiral-odd and time reversal-odd transverse momentum dependent (TMD) parton distribution h⊥1 , 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 h⊥1L 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.

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U2 - 10.1142/9789812796950_0051

DO - 10.1142/9789812796950_0051

M3 - Conference contribution

AN - SCOPUS:84885575458

SN - 9812796940

SN - 9789812796943

T3 - Exclusive Reactions at High Momentum Transfer - Proceedings of the International Workshop

SP - 401

EP - 411

BT - Exclusive Reactions at High Momentum Transfer - Proceedings of the International Workshop

PB - World Scientific Publishing Co. Pte Ltd

T2 - 2007 International Workshop on Exclusive Reactions at High Momentum Transfer

Y2 - 21 May 2007 through 24 May 2007

ER -