Electroweak corrections to Higgs-strahlung off W/Z bosons at the Tevatron and the LHC with HAWK - INSPIRE

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Electroweak corrections to Higgs-strahlung off W/Z bosons at the Tevatron and the LHC with HAWK

Ansgar Denner
(
- Wurzburg U.
)
,
Stefan Dittmaier
(
- Freiburg U.
)
,
Stefan Kallweit
(
- PSI, Villigen and
- Zurich U.
)
,
Alexander Muck
(
- Aachen, Tech. Hochsch.
)

Dec, 2011

22 pages

Published in:

JHEP 03 (2012) 075

e-Print:

1112.5142 [hep-ph]

DOI:

10.1007/JHEP03(2012)075

Report number:

FR-PHENO-2011-025,
PSI-PR-11-04,
ZU-TH-29-11,
TTK-11-61

View in:

ADS Abstract Service

reference search249 citations

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Abstract: (arXiv)

The associate production of Higgs bosons with W or Z bosons, known as Higgs-strahlung, is an important search channel for Higgs bosons at the hadron colliders Tevatron and LHC for low Higgs-boson masses. We refine a previous calculation of next-to-leading-order electroweak corrections (and recalculate the QCD corrections) upon including the leptonic decay of the W/Z bosons, thereby keeping the fully differential information of the 2-lepton + Higgs final state. The gauge invariance of the W/Z-resonance treatment is ensured by the use of the complex-mass scheme. The electroweak corrections, which are at the level of -(5-10)% for total cross sections, further increase in size with increasing transverse momenta p_T in differential cross sections. For instance, for p_T,H >~ 200GeV, which is the interesting range at the LHC, the electroweak corrections to WH production reach about -14% for M_H = 120GeV. The described corrections are implemented in the HAWK Monte Carlo program, which was initially designed for the vector-boson-fusion channel, and are discussed for various distributions in the production channels pp / p \bar p -> H + l nu_l / l^-l^+ / nu_l \bar nu_l + X.

Note:

22 pp

electroweak interaction: correction
quantum chromodynamics: correction
Higgs particle: associated production
Higgs particle: mass
W: leptonic decay
Z0: leptonic decay
differential cross section: calculated
total cross section: calculated
CERN LHC Coll
Batavia TEVATRON Coll

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