About: Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV     Goto   Sponge   NotDistinct   Permalink

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Description
  • 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 in the 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.
  • 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 in the 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. (en)
Title
  • Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV
  • Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV (en)
skos:prefLabel
  • Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV
  • Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV (en)
skos:notation
  • RIV/00216208:11320/11:10109350!RIV12-MSM-11320___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(LA08015)
http://linked.open...iv/cisloPeriodika
  • 09
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 211138
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11320/11:10109350
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • TeV; s=0.9; root; with; comparison; s=7; LHC; activity; event; underlying; Measurement (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • IT - Italská republika
http://linked.open...ontrolniKodProRIV
  • [E91294D51E51]
http://linked.open...i/riv/nazevZdroje
  • Journal of High Energy Physics
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 09
http://linked.open...iv/tvurceVysledku
  • CMS, Collaboration
  • Chatrchyan, S.
  • Finger, Michael
  • Finger, Miroslav
  • Khachatryan, V.
http://linked.open...ain/vavai/riv/wos
  • 000296086700034
issn
  • 1126-6708
number of pages
http://bibframe.org/vocab/doi
  • 10.1007/JHEP09(2011)109
http://localhost/t...ganizacniJednotka
  • 11320
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