A General Formalism for Single and Double Spin Asymmetries in Inclusive Hadron Production
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چکیده
We present a calculation of single and double spin asymmetries for inclusive hadron production in hadronic collisions. Our approach is based on Leading Order (LO) perturbative QCD and generalized factorization theorems, with full account of intrinsic parton momentum, k⊥, effects. This leads to a new class of spin and k⊥dependent distribution and fragmentation functions. Limiting ourselves to consider leading twist functions, we show how they could play a relevant role in producing non-vanishing spin asymmetries.
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