Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at root s=7 TeV
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10284457" target="_blank" >RIV/00216208:11320/14:10284457 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1007/JHEP06(2014)120" target="_blank" >http://dx.doi.org/10.1007/JHEP06(2014)120</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP06(2014)120" target="_blank" >10.1007/JHEP06(2014)120</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at root s=7 TeV
Popis výsledku v původním jazyce
The production of a Z boson, decaying into two leptons and produced in association with one or more b jets, is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV. The data were recorded in 2011 with the CMS detector and correspond to an integrated luminosity of 5 fb(-1). The Z(ll) + b-jets cross sections (where ll = mu mu or ee) are measured separately for a Z boson produced with exactly one b jet and with at least two b jets. In addition, a cross section ratio is extracted for a Z boson produced with at least one b jet, relative to a Z boson produced with at least one jet. The measured cross sections are compared to various theoretical predictions, and the data favour the predictions in the five-flavour scheme, where b quarks are assumed massless. The kinematic properties of the reconstructed particles are compared with the predictions from the MadGraph event generator using the pythia parton shower simulation.
Název v anglickém jazyce
Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at root s=7 TeV
Popis výsledku anglicky
The production of a Z boson, decaying into two leptons and produced in association with one or more b jets, is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV. The data were recorded in 2011 with the CMS detector and correspond to an integrated luminosity of 5 fb(-1). The Z(ll) + b-jets cross sections (where ll = mu mu or ee) are measured separately for a Z boson produced with exactly one b jet and with at least two b jets. In addition, a cross section ratio is extracted for a Z boson produced with at least one b jet, relative to a Z boson produced with at least one jet. The measured cross sections are compared to various theoretical predictions, and the data favour the predictions in the five-flavour scheme, where b quarks are assumed massless. The kinematic properties of the reconstructed particles are compared with the predictions from the MadGraph event generator using the pythia parton shower simulation.
Klasifikace
Druh
J<sub>x</sub> - 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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Návaznosti výsledku
Projekt
<a href="/cs/project/LG13031" target="_blank" >LG13031: Spolupráce ČR s CERN</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of High Energy Physics [online]
ISSN
1029-8479
e-ISSN
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Svazek periodika
2014
Číslo periodika v rámci svazku
6
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
39
Strana od-do
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Kód UT WoS článku
000338346200001
EID výsledku v databázi Scopus
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