Measurement of W WMINUS SIGN production in association with one jet in proton-proton collisions at s=8TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F16%3A33162005" target="_blank" >RIV/61989592:15310/16:33162005 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0370269316305858" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0370269316305858</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2016.10.014" target="_blank" >10.1016/j.physletb.2016.10.014</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of W WMINUS SIGN production in association with one jet in proton-proton collisions at s=8TeV with the ATLAS detector

Popis výsledku v původním jazyce

The production of W boson pairs in association with one jet in pp collisions at s=8 TeV is studied using data corresponding to an integrated luminosity of 20.3 fbMINUS SIGN 1 collected by the ATLAS detector during 2012 at the CERN Large Hadron Collider. The cross section is measured in a fiducial phase-space region defined by the presence of exactly one electron and one muon, missing transverse momentum and exactly one jet with a transverse momentum above 25 GeV and a pseudorapidity of |η|<4.5. The leptons are required to have opposite electric charge and to pass transverse momentum and pseudorapidity requirements. The fiducial cross section is found to be σWW fid,1-jet=136+-6(stat)+-14(syst)+-3(lumi) fb. In combination with a previous measurement restricted to leptonic final states with no associated jets, the fiducial cross section of WW production with zero or one jet is measured to be σWW fid,LESS-THAN OR EQUAL TO1-jet=511+-9(stat)+-26(syst)+-10(lumi) fb. The ratio of fiducial cross sections in final states with one and zero jets is determined to be 0.36+-0.05. Finally, a total cross section extrapolated from the fiducial measurement of WW production with zero or one associated jet is reported. The measurements are compared to theoretical predictions and found in good agreement.

Název v anglickém jazyce

Measurement of W WMINUS SIGN production in association with one jet in proton-proton collisions at s=8TeV with the ATLAS detector

Popis výsledku anglicky

The production of W boson pairs in association with one jet in pp collisions at s=8 TeV is studied using data corresponding to an integrated luminosity of 20.3 fbMINUS SIGN 1 collected by the ATLAS detector during 2012 at the CERN Large Hadron Collider. The cross section is measured in a fiducial phase-space region defined by the presence of exactly one electron and one muon, missing transverse momentum and exactly one jet with a transverse momentum above 25 GeV and a pseudorapidity of |η|<4.5. The leptons are required to have opposite electric charge and to pass transverse momentum and pseudorapidity requirements. The fiducial cross section is found to be σWW fid,1-jet=136+-6(stat)+-14(syst)+-3(lumi) fb. In combination with a previous measurement restricted to leptonic final states with no associated jets, the fiducial cross section of WW production with zero or one jet is measured to be σWW fid,LESS-THAN OR EQUAL TO1-jet=511+-9(stat)+-26(syst)+-10(lumi) fb. The ratio of fiducial cross sections in final states with one and zero jets is determined to be 0.36+-0.05. Finally, a total cross section extrapolated from the fiducial measurement of WW production with zero or one associated jet is reported. The measurements are compared to theoretical predictions and found in good agreement.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

ISSN

0370-2693

e-ISSN

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Svazek periodika

763

Číslo periodika v rámci svazku

DEC

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

20

Strana od-do

114-133

Kód UT WoS článku

000390126600017

EID výsledku v databázi Scopus

2-s2.0-85006626464