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
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
收藏
页码:425 / 430
页数:6
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