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

被引：85

作者：

Frederix, Rikkert ^{[1
]}

Frixione, Stefano ^{[2
,3
]}

Hirschi, Valentin ^{[3
]}

Maltoni, Fabio ^{[4
]}

Pittau, Roberto ^{[5
,6
]}

Torrielli, Paolo ^{[3
]}

机构：

[1] Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland

[2] CERN, TH Unit, PH Dept, CH-1211 Geneva 23, Switzerland

[3] Ecole Polytech Fed Lausanne, ITPP, CH-1015 Lausanne, Switzerland

[4] Catholic Univ Louvain, Ctr Cosmol Particle Phys & Phenomenol CP3, B-1348 Louvain, Belgium

[5] Univ Granada, Dept Fis Teor & Cosmos, Granada, Spain

[6] Univ Granada, CAFPE, Granada, Spain

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2012年 / 02期

基金：

美国国家科学基金会; 瑞士国家科学基金会;

关键词：

NLO Computations; Hadronic Colliders; QCD; Standard Model; BOSON PAIR PRODUCTION; ZZ; O(ALPHA(S)); AMPLITUDES;

D O I：

10.1007/JHEP02(2012)099

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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(2)(S)) 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.

引用

页数：26

共 32 条

[1] Four-lepton production at hadron colliders: aMC@NLO predictions with theoretical uncertainties
Rikkert Frederix
Stefano Frixione
Valentin Hirschi
Fabio Maltoni
Roberto Pittau
Paolo Torrielli
Journal of High Energy Physics, 2012
[2] NLO corrections to lepton pair production beyond the Standard Model at hadron colliders
Choudhury, D
Majhi, S
Ravindran, V
JOURNAL OF HIGH ENERGY PHYSICS, 2006, (01):
[3] NLO QCD corrections to ZZ plus jet production at hadron colliders
Binoth, T.
Gleisberg, T.
Karg, S.
Kauer, N.
Sanguinetti, G.
PHYSICS LETTERS B, 2010, 683 (2-3) : 154 - 159
[4] NLO electroweak contributions to gluino pair production at hadron colliders
Mirabella, E.
JOURNAL OF HIGH ENERGY PHYSICS, 2009, (12):
[5] NLO predictions for t-channel production of single top and fourth generation quarks at hadron colliders
Campbell, John M.
Frederix, Rikkert
Maltoni, Fabio
Tramontano, Francesco
JOURNAL OF HIGH ENERGY PHYSICS, 2009, (10):
[6] Precise Higgs-background predictions: merging NLO QCD and squared quark-loop corrections to four-lepton + 0,1 jet production
F. Cascioli
S. Höche
F. Krauss
P. Maierhöfer
S. Pozzorini
F. Siegert
Journal of High Energy Physics, 2014
[7] Precise Higgs-background predictions: merging NLO QCD and squared quark-loop corrections to four-lepton + 0,1 jet production
Cascioli, F.
Hoeche, S.
Krauss, F.
Maierhoefer, P.
Pozzorini, S.
Siegert, F.
JOURNAL OF HIGH ENERGY PHYSICS, 2014, (01):
[8] W boson production at hadron colliders: the lepton charge asymmetry in NNLO QCD
Catani, Stefano
Ferrera, Giancarlo
Grazzini, Massimiliano
JOURNAL OF HIGH ENERGY PHYSICS, 2010, (05):
[9] W boson production at hadron colliders: the lepton charge asymmetry in NNLO QCD
Stefano Catani
Giancarlo Ferrera
Massimiliano Grazzini
Journal of High Energy Physics, 2010
[10] Single-top t-channel hadroproduction in the four-flavour scheme with POWHEG and aMC@NLO
Frederix, Rikkert
Re, Emanuele
Torrielli, Paolo
JOURNAL OF HIGH ENERGY PHYSICS, 2012, (09):

← 1 2 3 4 →