Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP02(2015)077
Keywords
Higgs Physics; QCD
Categories
Funding
- Swiss National Science Foundation (SNF) [200020-149517]
- Research Executive Agency (REA) of the European Union [PITN-GA-2010-264564, PITN-GA-2012-316704]
- ERC Advanced Grant MC@NNLO [340983]
- Swiss National Science Foundation (SNF) [200020_149517] Funding Source: Swiss National Science Foundation (SNF)
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The factorisation of QCD matrix elements in the limit of two external partons becoming collinear is described by process-independent splitting amplitudes, which can be expanded systematically in perturbation theory. Working in conventional dimensional regularisation, we compute the two-loop splitting amplitudes for all simple collinear splitting processes, including subleading terms in the regularisation parameter. Our results are then applied to derive an analytical expression for the two-loop single-real contribution to inclusive Higgs boson production in gluon fusion to fourth order ((NLO)-L-3) in perturbative QCD.
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