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Drell-Yan proton-deuteron asymmetry and polarized light-antiquark distributions | M. Miyama
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11 Dec 1999 | Journal: | RIKEN Rev. 28 (2000) 50-54 | Subject: | hep-ph hep-ex nucl-th | Affiliation: | Saga University | Abstract: | We discuss the Drell-Yan proton-deuteron (p-d) asymmetry R_{pd}, which is defined by the proton-proton and proton-deuteron cross-section ratio Delta_{(T)}sigma^{pd}/2Delta_{(T)}sigma^{pp}, and its relation to the polarized light-antiquark flavor asymmetry. Using a formalism of the polarized {it pd} Drell-Yan process, we show that the R_{pd} especially in the large-x_F region is very useful for finding the flavor asymmetry in the longitudinally-polarized and transversity distributions. Our results are particularly important to study the flavor asymmetry in the transversity distributions because they cannot be measured by inclusive deep inelastic scattering and W-production process. | Source: | arXiv, hep-ph/0001078 | Services: | Forum | Review | PDF | Favorites |
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