Measurement of the underlying event activity using charged-particle jets in proton-proton collisions at √s=2.76 TeV

The CMS collaboration

研究成果: 雜誌貢獻期刊論文同行評審

14 引文 斯高帕斯(Scopus)

摘要

A measurement of the underlying event (UE) activity in proton-proton collisions is performed using events with charged-particle jets produced in the central pseudorapidity region (|ηjet| < 2) and with transverse momentum 1 ≤ pT jet < 100 GeV. The analysis uses a data sample collected at a centre-of-mass energy of 2.76 TeV with the CMS experiment at the LHC. The UE activity is measured as a function of pT jet in terms of the average multiplicity and scalar sum of transverse momenta (pT) of charged particles, with |η| < 2 and pT > 0.5 GeV, in the azimuthal region transverse to the highest pT jet direction. By further dividing the transverse region into two regions of smaller and larger activity, various components of the UE activity are separated. The measurements are compared to previous results at 0.9 and 7 TeV, and to predictions of several Monte Carlo event generators, providing constraints on the modelling of the UE dynamics.[Figure not available: see fulltext.]

原文???core.languages.en_GB???
文章編號137
期刊Journal of High Energy Physics
2015
發行號9
DOIs
出版狀態已出版 - 29 9月 2015

指紋

深入研究「Measurement of the underlying event activity using charged-particle jets in proton-proton collisions at √s=2.76 TeV」主題。共同形成了獨特的指紋。

引用此