h{sub 1T}{sup perpendicular} and quark orbital angular momentum
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)
We calculate the pretzelosity distribution (h{sub 1T}{sup perpendicular}), which is one of the eight leading twist transverse momentum dependent parton distributions (TMDs), in the light-cone formalism. We find that this quantity has a simple relation with the quark orbital angular momentum distribution, thus it may provide a new possibility to access the quark orbital angular momentum inside the nucleon. The pretzelosity distribution can manifest itself through the sin(3{phi}{sub h}-{phi}{sub S}) asymmetry in semi-inclusive deep inelastic scattering process. We calculate the sin(3{phi}{sub h}-{phi}{sub S}) asymmetry at HERMES, COMPASS, and JLab kinematics and present our prediction on different targets including the proton, deuteron, and neutron targets. Inclusion of transverse momentum cut in data analysis could significantly enhance the sin(3{phi}{sub h}-{phi}{sub S}) asymmetry for future measurements.
- OSTI ID:
- 21260079
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 79, Issue 5; Other Information: DOI: 10.1103/PhysRevD.79.054008; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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