The difference cross sections of unpolarized SIDIS with transverse momentum dependence

Abstract

Previously we showed that, based only on C and SU(2) invariance, the difference cross sections of hadrons with opposite charge in SIDIS e+N\to l+h+X is expressed solely in terms of the valence-quark densities and certain non-singlet combinations of FFs. This allowed to determine these quantities in a model independent way. Now we extend this approach to processes when the transverse momentum of the final hadron is measured as well. We show that the difference cross sections of unpolarized SIDIS on proton and deuterium targets, d\s_N^{h^+-h^-}, d\s_N^{π^+-π^-} and d\s_N^{K^+-K^-}, are expressed solely in terms of the TMD unpolarized valence quark densities and FFs, and the valence-quark Boer-Mulders and Collins functions. This allows to determine them separately and study flavour dependence of the quark transverse momentum. Measurements on deuterium target, d\s_d^{h^+-h^-}, d\s_d^{π^+-π^-} and d\s_d^{K^+-K^-}, provide 3 independent measurements for the sum of the TMD valence quark densities and Boer-Mulders functions: (u_{1,V}+d_{1,V}) and (h_{1,uV}^\perp + h_{1,dV}^\perp).

arXiv comment17 pages, Latex file

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Cited by in corpus (4)

• Tests of the extraction of the Sivers, Boer-Mulders and transversity distributions in SIDIS reactions
• New study of the Boer-Mulders function: Implications for the quark and hadron transverse momenta
• Consistency tests for the extraction of the Boer-Mulders and Sivers functions
• Tests for Sivers, Boer-Mulders and transversity distributions in difference cross sections in SIDIS