کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1843249 1645171 2006 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Single transverse spin asymmetry for large-pTpT pion production in semi-inclusive deep inelastic scattering
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Single transverse spin asymmetry for large-pTpT pion production in semi-inclusive deep inelastic scattering
چکیده انگلیسی

We study the single spin asymmetry (SSA) for the pion production with large transverse momentum pTpT in semi-inclusive deep inelastic scattering ep↑→eπXep↑→eπX. We derive the twist-3 cross section formula for SSA, focussing on the soft-gluon-pole contributions associated with the twist-3 distribution for the nucleon and with the twist-3 fragmentation function for the pion. We present a simple estimate of the asymmetries due to each twist-3 effect from nucleon and pion, respectively, by fixing the overall strength of the relevant nonperturbative quantities by the data on the SSA ANAN in p↑p→πXp↑p→πX collision.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 752, Issues 1–2, 18 September 2006, Pages 1–17
نویسندگان
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