Finite top-mass effects in gluon-induced Higgs production with a jet-veto at NNLO - INSPIRE

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Finite top-mass effects in gluon-induced Higgs production with a jet-veto at NNLO

Tobias Neumann
(
- Wuppertal U.
)
,
Marius Wiesemann
(
- Zurich U.
)

Aug 28, 2014

22 pages

Published in:

JHEP 11 (2014) 150

Published: Nov 26, 2014

e-Print:

1408.6836 [hep-ph]

DOI:

10.1007/JHEP11(2014)150

Report number:

ZU-TH-30-14,
WUB-14-09,
LPN14-107

View in:

ADS Abstract Service

reference search59 citations

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Abstract: (Springer)

Effects from a finite top quark mass on the H+n-jet coss section through gluon fusion are studied for n = 0/n ≥ 1 at NNLO/NLO QCD. For this purpose, sub-leading terms in 1/m

_{t}

are calculated. We show that the asymptotic expansion of the jet-vetoed cross section at NNLO is very well behaved and that the heavy-top approximation is valid at the five permille level up to jet-veto cuts of 300 GeV. For the inclusive Higgs+jet rate, we introduce a matching procedure that allows for a reliable prediction of the top-mass effects using the expansion in 1/m

_{t}

. The quality of the effective field theory to evaluate differential K-factors for the distribution of the hardest jet is found to be better than 1-2% as long as the transverse momentum of the jet is integrated out or remains below about 150 GeV.

Note:

22 pages, 14 figures

QCD Phenomenology
Jets
gluon: fusion
Higgs particle: production
quantum chromodynamics: correction
correction: higher-order
higher-order: 2
top: mass
mass: effect
mass: finite

References(57)

Figures(27)

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