期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP05(2013)110
关键词
Higgs Physics; Resummation; Renormalization Group; QCD
资金
- Swiss National Science Foundation (SNF) [200020-140978]
- Innovations- und Kooperationsprojekt C-13 of the Schweizerische Universitatskonferenz (SUK/CRUS)
- European Research Council [EFT4LHC]
- Cluster of Excellence Precision Physics, Fundamental Interactions and Structure of Matter [PRISMA - EXC 1098]
- German Research Foundation (DFG) [NE 398/3-1]
- German Federal Ministry for Education and Research (BMBF) [05H09UME, 05H12UME]
- Rhineland-Palatinate Research Center Elementary Forces and Mathematical Foundations
- Swiss National Science Foundation (SNF) [200020_140978] Funding Source: Swiss National Science Foundation (SNF)
Using methods from effective field theory, we have recently developed a novel, systematic framework for the calculation of the cross sections for electroweak gauge-boson production at small and very small transverse momentum q(T), in which large logarithms of the scale ratio m(V)/q(T) are resummed to all orders. This formalism is applied to the production of Higgs bosons in gluon fusion at the LHC. The production cross section receives logarithmically enhanced corrections from two sources: the running of the hard matching coefficient and the collinear factorization anomaly. The anomaly leads to the dynamical generation of a non-perturbative scale q(*) similar to m(H) e(-const/alpha s(mH)) approximate to 8GeV, which protects the process from receiving large long-distance hadronic contributions. We present numerical predictions for the transverse-momentum spectrum of Higgs bosons produced at the LHC, finding that it is quite insensitive to hadronic effects.
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