Benchmark of deep-inelastic-scattering structure functions at O (αs3)

被引：0
|
作者：
Bertone, Valerio [1 ]
Karlberg, Alexander [2 ]
机构：
[1] CEA Paris Saclay, IRFU, F-91191 Gif Sur Yvette, France
[2] CERN, Theoret Phys Dept, CH-1211 Geneva 23, Switzerland
来源：
EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 08期
关键词：
OPERATOR MATRIX-ELEMENTS; 3-LOOP SPLITTING FUNCTIONS; HEAVY FLAVOR CONTRIBUTIONS; STRUCTURE-FUNCTION F-2(X; ASYMPTOTIC VALUES Q(2); FREE GAUGE-THEORIES; QCD BETA-FUNCTION; LEADING ORDER; 2ND-ORDER CONTRIBUTIONS; ANOMALOUS DIMENSIONS;
D O I：
10.1140/epjc/s10052-024-13133-6
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We present a benchmark comparison of the massless inclusive deep-inelastic-scattering (DIS) structure functions up to O(alpha(3)(s)) in perturbative QCD. The comparison is performed using the codes apfel++ and hoppet within the framework of the variable-flavour-number scheme and over a broad kinematic range relevant to the extraction of parton distribution functions. We provide results for both the single structure functions and the reduced cross sections in both neutral- and charged-current DIS. Look-up tables for future reference are included, and we also release the code used for the benchmark.
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页数：18
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