Intrinsic transverse momentum and transverse spin asymmetries
نویسنده
چکیده
We investigate leading twist transverse momentum dependent origins of transverse spin asymmetries in hadron-hadron collisions. The chiral-odd T-odd distribution function with intrinsic transverse momentum dependence, which would signal an intrinsic handedness of quarks inside a hadron, could account for single spin asymmetries and at the same time for the large cos 2φ asymmetry in the unpolarized Drell-Yan cross section, which still lacks understanding. We show explicitly how it would relate unpolarized and polarized observables measurable with proton-proton collisions at RHIC. It would offer a new possibility to access the transversity distribution function. Talk given at the 7th International Workshop on “Deep Inelastic Scattering and QCD” (DIS99) DESY-Zeuthen, April 19 23, 1999
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