Four-lepton production at hadron colliders: aMC@NLO predictions with theoretical uncertainties - INSPIRE

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Four-lepton production at hadron colliders: aMC@NLO predictions with theoretical uncertainties

Rikkert Frederix
(
- Zurich U.
)
,
Stefano Frixione
(
- CERN and
- ITPP, Lausanne
)
,
Valentin Hirschi
(
- ITPP, Lausanne
)
,
Fabio Maltoni
(
- Louvain U., CP3
)
,
Roberto Pittau
(
- CAFPE, Granada and
- Granada U., Theor. Phys. Astrophys.
)

Oct, 2011

24 pages

Published in:

JHEP 02 (2012) 099

e-Print:

1110.4738 [hep-ph]

DOI:

10.1007/JHEP02(2012)099

Report number:

CERN-PH-TH-2011-250,
CP3-11-32,
ZU-TH-19-11,
NSF-KITP-11-115

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Abstract: (arXiv)

We use aMC@NLO to study the production of four charged leptons at the LHC, performing parton showers with both HERWIG and Pythia6. Our underlying matrix element calculation features the full next-to-leading order

O(\alpha_S)

result and the

O(\alpha_S^2)

contribution of the

gg

channel, and it includes all off-shell, spin-correlation, virtual-photon-exchange, and interference effects. We present several key distributions together with the corresponding theoretical uncertainties. These are obtained through a process-independent technique that allows aMC@NLO to compute scale and PDF uncertainties in a fully automated way and at no extra CPU-time cost

Note:

24 pages, 6 figures

QCD
NLO Computations
Hadronic Colliders
interference: effect
parton: showers
higher-order: 1
CERN LHC Coll
off-shell
HERWIG
p p: inclusive reaction

References(29)

Figures(13)

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)
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)

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Fabio Maltoni
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)

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