Approximate four-loop QCD corrections to the Higgs-boson production cross section
Approximate four-loop QCD corrections to the Higgs-boson production cross section
复制标题
对希格斯玻色子产生截面的近似四环 QCD 校正
DOI:
10.1016/j.physletb.2020.135546
复制
发表时间:
2020
影响因子:
4.4
通讯作者:
A. Vogt
中科院分区:
文献类型:
--
作者:
G. Das;S. Moch;A. Vogt
We study the soft and collinear contributions to inclusive Higgs-boson production in gluon-gluon fusion at four loops. Using recent progress for the quark and gluon form factors and Mellin moments of splitting functions, we are able to complete the soft-gluon enhanced contributions exactly in the limit of a large number of colours, and to a sufficiently accurate numerical accuracy for QCD. The four-loop soft and virtual contributions increase the QCD cross section at 14 TeV by 2.7% and 0.2% for the standard choices μ R= m H and μ R= m H/2 of the renormalization scale, and reduce the scale uncertainty to below±3%. As by-products, we derive the complete δ (1− x) term for the gluon-gluon splitting function at four loops and its purely Abelian contributions at five loops, and provide a numerical result for the single pole of the four-loop gluon form factor in dimensional regularization. Finally we present the closely related fourth-order coefficients D 4 for the soft-gluon exponentiation of Higgs-boson and Drell-Yan lepton-pair production.
登录
查看更多内容
DOI:
10.1016/j.nuclphysb.2016.12.012
发表时间:
2016
期刊:
Nuclear Physics
影响因子:
--
作者:
J. Davies;A. Vogt;B. Ruijl;Takahiro Ueda;J. Vermaseren
通讯作者:
J. Vermaseren
影响因子:
4.4
作者:
G. Grunberg
通讯作者:
G. Grunberg
影响因子:
4.4
作者:
Huber, Tobias;von Manteuffel, Andreas;Panzer, Erik;Schabinger, Robert M.;Yang, Gang
通讯作者:
Yang, Gang
DOI:
10.1016/j.nuclphysb.2005.01.012
发表时间:
2004-11
期刊:
Nuclear Physics
影响因子:
--
作者:
M. Czakon
通讯作者:
M. Czakon
影响因子:
4.4
作者:
S. Moch;B. Ruijl;Takahiro Ueda;J. Vermaseren;A. Vogt
通讯作者:
S. Moch;B. Ruijl;Takahiro Ueda;J. Vermaseren;A. Vogt