Single target-spin asymmetry in semi-inclusive deep inelastic scattering on a transversely polarized nucleon target
- Department of Physics, Peking University, Beijing 100871 (China)
- Department of Physics and MOE Key Laboratory of Heavy Ion Physics, Peking University, Beijing 100871 (China)
We use a new set of Collins functions to update a previous prediction on the azimuthal asymmetries of pion production in a semi-inclusive deep-inelastic scattering process on a transversely polarized nucleon target. We find that the calculated results can give a good explanation to the HERMES experiment with the new parametrization, and this can enrich our knowledge of the fragmentation process. Furthermore, with two different approaches of distribution and fragmentation functions, we present a prediction on the azimuthal asymmetries of pion and kaon production at the kinematics region of the experiments E06010 and E06011 planned at Jefferson Lab. It is shown that the results are insensitive to the models for the pion case. However, the results for kaon production are sensitive to different approaches of distribution and fragmentation functions. This is helpful to clarify some points in the study of the azimuthal spin asymmetries and fragmentation functions in hadronization processes.
- OSTI ID:
- 21027499
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 76, Issue 3; Other Information: DOI: 10.1103/PhysRevD.76.034004; (c) 2007 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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