کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11026297 1666401 2018 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-loop anomalous dimensions of generic dijet soft functions
ترجمه فارسی عنوان
ابعاد ناهمگن دو حلقه از توابع نرم نرم عمومی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
چکیده انگلیسی
We present compact integral representations for the calculation of two-loop anomalous dimensions for a generic class of soft functions that are defined in terms of two light-like Wilson lines. Our results are relevant for the resummation of Sudakov logarithms for e+e− event-shape variables and inclusive hadron-collider observables at next-to-next-to-leading logarithmic accuracy within Soft-Collinear Effective Theory (SCET). Our formalism applies to both SCET-1 and SCET-2 soft functions and we clarify the relation between the respective soft anomalous dimension and the collinear anomaly exponent. We confirm existing two-loop results for about a dozen dijet soft functions and obtain new predictions for the angularity event shape and the soft-drop jet-grooming algorithm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 936, November 2018, Pages 520-541
نویسندگان
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