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  • A first measurement of the polarization of W bosons with large transverse momenta in pp collisions is presented. The measurement is based on 36 pb(-1) of data recorded at root s = 7 TeV by the CMS detector at the LHC. The left-handed, right-handed, and longitudinal polarization fractions (f(L), f(R), and f(0), respectively) of W bosons with transverse momenta larger than 50 GeV are determined by using decays to both electrons and muons. The muon final state yields the most precise measurement: (f(L) - f(R))(-) = 0.240 +/- 0.036(syst) +/- 0.031(syst) and f(0)(-) = 0.183 +/- 0.087(stat) +/- 0.123(syst) for negatively charged W bosons and (f(L) - f(R))(+) = 0.310 +/- 0.036(syst) +/- 0.017(syst) and f(0)(+) = 0.171 +/- 0.085(syst) +/- 0.099(syst) for positively charged W bosons. This establishes, for the first time, that W bosons produced in pp collisions with large transverse momenta are predominantly left-handed, as expected in the standard model.
  • A first measurement of the polarization of W bosons with large transverse momenta in pp collisions is presented. The measurement is based on 36 pb(-1) of data recorded at root s = 7 TeV by the CMS detector at the LHC. The left-handed, right-handed, and longitudinal polarization fractions (f(L), f(R), and f(0), respectively) of W bosons with transverse momenta larger than 50 GeV are determined by using decays to both electrons and muons. The muon final state yields the most precise measurement: (f(L) - f(R))(-) = 0.240 +/- 0.036(syst) +/- 0.031(syst) and f(0)(-) = 0.183 +/- 0.087(stat) +/- 0.123(syst) for negatively charged W bosons and (f(L) - f(R))(+) = 0.310 +/- 0.036(syst) +/- 0.017(syst) and f(0)(+) = 0.171 +/- 0.085(syst) +/- 0.099(syst) for positively charged W bosons. This establishes, for the first time, that W bosons produced in pp collisions with large transverse momenta are predominantly left-handed, as expected in the standard model. (en)
Title
  • Measurement of the Polarization of W Bosons with Large Transverse Momenta in W plus jets Events at the LHC
  • Measurement of the Polarization of W Bosons with Large Transverse Momenta in W plus jets Events at the LHC (en)
skos:prefLabel
  • Measurement of the Polarization of W Bosons with Large Transverse Momenta in W plus jets Events at the LHC
  • Measurement of the Polarization of W Bosons with Large Transverse Momenta in W plus jets Events at the LHC (en)
skos:notation
  • RIV/00216208:11320/11:10109397!RIV12-MSM-11320___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(LA08015)
http://linked.open...iv/cisloPeriodika
  • 02
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
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  • 211121
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11320/11:10109397
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • LHC; Events; jets; plus; Momenta; Transverse; Large; with; Bosons; Polarization; Measurement (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [EFE627A00E25]
http://linked.open...i/riv/nazevZdroje
  • Physical Review Letters
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...v/svazekPeriodika
  • 107
http://linked.open...iv/tvurceVysledku
  • CMS, Collaboration
  • Chatrchyan, S.
  • Finger, Michael
  • Finger, Miroslav
  • Khachatryan, V.
http://linked.open...ain/vavai/riv/wos
  • 000292516600006
issn
  • 0031-9007
number of pages
http://bibframe.org/vocab/doi
  • 10.1103/PhysRevLett.107.021802
http://localhost/t...ganizacniJednotka
  • 11320
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