科研之友
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摘要
Using a previous extraction of the quark Boer-Mulders distributions from semi-inclusive deep inelastic scattering data, we fit the unpolarized Drell-Yan data on the cos2 phi asymmetry, determining the antiquark Boer-Mulders distributions. A good agreement with the data is found in the region of low q(T), where the transverse-momentum factorization approach applies.
- 出版日期2010-12-23
