Nonperturbative functions for SIDIS and Drell–Yan processes
Nonperturbative functions for SIDIS and Drell–Yan processes
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DOI：
10.1142/s0217751x18410063
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发表时间：
2018-04
影响因子：
1.6
通讯作者：
P. Sun;J. Isaacson;C. Yuan;F. Yuan
中科院分区：
文献类型：
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作者：
P. Sun;J. Isaacson;C. Yuan;F. Yuan
通过考虑来自爱马仕和COMPASS实验的深度非弹性散射（SIDIS）中半包容强子产生的约束，我们更新了著名的BLNY模型对强子碰撞中低横动量Drell-Yan轻子对产生的拟合.我们遵循具有B-处方的Collins-Soper-Sterman（CSS）形式主义。用一种不同于BLNY的新的泛函形式进行分析，发现了一个与夸克横动量分布有关的非微扰形状因子。这释放了BLNY拟合到Drell-Yan数据与CSS再确认形式体系中来自爱马仕/COMPASS的SIDIS数据之间的张力。
We update the well-known BLNY fit to the low transverse momentum Drell–Yan lepton pair productions in hadronic collisions, by considering the constraints from the semi-inclusive hadron production in deep inelastic scattering (SIDIS) from HERMES and COMPASS experiments. We follow the Collins–Soper–Sterman (CSS) formalism with the b∗-prescription. A nonperturbative form factor associated with the transverse momentum dependent quark distributions is found in the analysis with a new functional form different from that of BLNY. This releases the tension between the BLNY fit to the Drell–Yan data with the SIDIS data from HERMES/COMPASS in the CSS resummation formalism.