Precise QCD description of the Higgs boson transverse momentum spectrum

被引：58

作者：

Chen, Xuan ^{[1
]}

Gehrmann, Thomas ^{[1
]}

Glover, E. W. Nigel ^{[2
]}

Huss, Alexander ^{[3
]}

Li, Ye ^{[4
]}

Neill, Duff ^{[5
]}

Schulze, Markus ^{[6
]}

Stewart, Iain W. ^{[7
]}

Zhu, Hua Xing ^{[8
]}

机构：

[1] Univ Zurich, Dept Phys, CH-8057 Zurich, Switzerland

[2] Univ Durham, Dept Phys, Inst Particle Phys Phenomenol, Durham DH1 3LE, England

[3] CERN, Theoret Phys Dept, CH-1211 Geneva 23, Switzerland

[4] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA

[5] Los Alamos Natl Lab, Theoret Div, MS B283, Los Alamos, NM 87545 USA

[6] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[7] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

[8] Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China

来源：

PHYSICS LETTERS B | 2019年 / 788卷

基金：

瑞士国家科学基金会; 英国科学技术设施理事会;

关键词：

Higgs bosons; Perturbative QCD; Resummation; Transverse momentum spectrum; 3-LOOP SPLITTING FUNCTIONS; TO-LEADING ORDER;

D O I：

10.1016/j.physletb.2018.11.037

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The transverse momentum (p(T)) distribution of Higgs bosons at hadron colliders enables a detailed probe of its production dynamics and is a key ingredient to precision studies of Higgs boson properties, but receives very large QCD corrections. We obtain a precision prediction for the p(T) spectrum by matching second-order (NNLO) QCD corrections at large P-T with resummation of third-order logarithmic ((NLL)-L-3) corrections at small P-T. We achieve significantly improved results for p(T) < 35 GeV with perturbative uncertainties less than or similar to +/- 6%, and thus a convergent perturbative series for all values of P-T. (C) 2018 The Author(s). Published by Elsevier B.V.

引用

页码：425 / 430

页数：6

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