کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1842869 1645180 2006 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Resummation for polarized semi-inclusive deep-inelastic scattering at small transverse momentum
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Resummation for polarized semi-inclusive deep-inelastic scattering at small transverse momentum
چکیده انگلیسی

We study the transverse-momentum distribution of hadrons produced in semi-inclusive deep-inelastic scattering (SIDIS). We consider cross sections for various combinations of polarizations of the initial lepton and nucleon or the produced hadron, for which we perform the resummation of large double-logarithmic perturbative corrections arising at small transverse momentum. We present phenomenological results for the processes lp→lπXlp→lπX with longitudinally polarized leptons and protons. We discuss the impact of the perturbative resummation and of estimated non-perturbative contributions on the corresponding cross sections and their spin asymmetry. Our results should be relevant for ongoing studies in the COMPASS experiment at CERN, and for future experiments at the proposed eRHIC collider at BNL.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 744, Issues 1–2, 5 June 2006, Pages 59–79
نویسندگان
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