Sivers Function in the MIT Bag Model

Details Sivers Function in the MIT Bag Model Sivers Function in the MIT Bag Model

2003-08-14

arxiv.org/abs/hep-ph/0308157v1

Phys.Lett. B575 (2003) 45-54

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 5 figures

Scientific paper

The Sivers function, an asymmetric transverse-momentum distribution of the quarks in a transversely polarized nucleon, is calculated in the MIT bag model. The bag quark wave functions contain both $S$-wave and $P$-wave components, and their interference leads to nonvanishing Sivers function in the presence of the final state interactions. We approximate these interactions through one-gluon exchange. An estimate of another transverse momentum dependent distribution $h_1^\perp$ is also performed in the same model.

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