Threshold-resummed cross section for the Drell-Yan process in pion-nucleon collisions at COMPASS

被引：7

作者：

Aicher, Matthias ^{[1
]}

Schaefer, Andreas ^{[1
]}

Vogelsang, Werner ^{[2
]}

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[2] Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW D | 2011年 / 83卷 / 11期

关键词：

PARTON DISTRIBUTIONS; HEAVY-QUARK; RESUMMATION; DILEPTON;

D O I：

10.1103/PhysRevD.83.114023

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a study of the Drell-Yan process in pion-proton collisions including next-to-leading-logarithmic threshold-resummed contributions. We analyze rapidity-integrated as well as rapidity-differential cross sections in the kinematic regime relevant for the COMPASS fixed target experiment. We find that resummation leads to a significant enhancement of the cross section compared to fixed-order calculations in this regime. Particularly large corrections arise at large forward and backward rapidities of the lepton pair. We also study the scale dependence of the cross section and find it to be substantially reduced by threshold resummation.

引用

页数：8

共 26 条

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JOURNAL OF HIGH ENERGY PHYSICS, 2020, 2020 (10)
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[5] Sivers asymmetry in the pion induced Drell-Yan process at COMPASS within transverse momentum dependent factorization
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[6] Boer-Mulders function of the pion and pretzelosity distribution of the proton in the polarized pion-proton Drell-Yan process at COMPASS
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[7] Boer-Mulders effect in the unpolarized pion induced Drell-Yan process at COMPASS within TMD factorization
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EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (08):
[8] Next-to-leading power resummed rapidity distributions near threshold for Drell-Yan and diphoton production
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Vernazza L.
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Journal of High Energy Physics, 2023 (10)
[9] Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s=8 TeV
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[10] Drell-Yan Cross Section to Third Order in the Strong Coupling Constant
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