Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10109350" target="_blank" >RIV/00216208:11320/11:10109350 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1007/JHEP09(2011)109" target="_blank" >http://dx.doi.org/10.1007/JHEP09(2011)109</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP09(2011)109" target="_blank" >10.1007/JHEP09(2011)109</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV
Popis výsledku v původním jazyce
A measurement of the underlying activity in events with a jet of transverse momentum in the several GeV region is performed in proton-proton collisions at root s = 0.9 and 7 TeV, using data collected by the CMS experiment at the LHC. The production of charged particles with pseudorapidity vertical bar eta vertical bar { 2 and transverse momentum p(T) } 0.5 GeV = c is studied in the azimuthal region transverse to that of the leading set of charged particles forming a track-jet. A significant growth of the average multiplicity and scalar-p(T) sum of the particles in the transverse region is observed with increasing p(T) of the leading track-jet, followed by a much slower rise above a few GeV/c. For track-jet p(T) larger than a few GeV/c, the activity inthe transverse region is approximately doubled with a centre-of-mass energy increase from 0.9 to 7 TeV. Predictions of several QCD-inspired models as implemented in PYTHIA are compared to the data.
Název v anglickém jazyce
Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV
Popis výsledku anglicky
A measurement of the underlying activity in events with a jet of transverse momentum in the several GeV region is performed in proton-proton collisions at root s = 0.9 and 7 TeV, using data collected by the CMS experiment at the LHC. The production of charged particles with pseudorapidity vertical bar eta vertical bar { 2 and transverse momentum p(T) } 0.5 GeV = c is studied in the azimuthal region transverse to that of the leading set of charged particles forming a track-jet. A significant growth of the average multiplicity and scalar-p(T) sum of the particles in the transverse region is observed with increasing p(T) of the leading track-jet, followed by a much slower rise above a few GeV/c. For track-jet p(T) larger than a few GeV/c, the activity inthe transverse region is approximately doubled with a centre-of-mass energy increase from 0.9 to 7 TeV. Predictions of several QCD-inspired models as implemented in PYTHIA are compared to the data.
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/LA08015" target="_blank" >LA08015: Spolupráce ČR s CERN</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2011
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
ISSN
1126-6708
e-ISSN
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Svazek periodika
09
Číslo periodika v rámci svazku
9
Stát vydavatele periodika
IT - Italská republika
Počet stran výsledku
30
Strana od-do
109, 1-30
Kód UT WoS článku
000296086700034
EID výsledku v databázi Scopus
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