About: Measurement of the W -> eν and Z/γ* -> e+e- Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at root s = 500 GeV     Goto   Sponge   Distinct   Permalink

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Description
  • We report measurements of the charge-separated W +(-) -> e+(-) + νe(ν e) and Z/γ* -> e+e- root production cross sections at mid-rapidity in proton-proton collisions at s = 500 GeV. These results are based on 13.2 pb-1 of data recorded in 2009 by the STAR detector at RHIC. Production cross sections for W bosons that decay via the eν channel were measured to be σ(pp -> W+X).BR(W+ -> e+ νe) = 117.3 ± 5.9(stat) ± 6.2(syst) ± 15.2(lumi) pb, and σ(pp -> W-X).BR(W- -> e- ν e) = 43.3 ± 4.6(stat) ± 3.4(syst) ± 5.6(lumi) pb. For Z/γ* production, σ(pp -> Z/γ* X) . BR(Z/γ* -> e+e-) = 7.7 ± 2.1(stat) +0.5(syst) ± 1.0(lumi) pb for di-lepton invariant masses m + - between 70 and -0.9 ee root 110 GeV/c2. First measurements of the W cross section ratio, σ(pp -> W+X)/σ(pp -> W-X), at s = 500 GeV are also reported.
  • We report measurements of the charge-separated W +(-) -> e+(-) + νe(ν e) and Z/γ* -> e+e- root production cross sections at mid-rapidity in proton-proton collisions at s = 500 GeV. These results are based on 13.2 pb-1 of data recorded in 2009 by the STAR detector at RHIC. Production cross sections for W bosons that decay via the eν channel were measured to be σ(pp -> W+X).BR(W+ -> e+ νe) = 117.3 ± 5.9(stat) ± 6.2(syst) ± 15.2(lumi) pb, and σ(pp -> W-X).BR(W- -> e- ν e) = 43.3 ± 4.6(stat) ± 3.4(syst) ± 5.6(lumi) pb. For Z/γ* production, σ(pp -> Z/γ* X) . BR(Z/γ* -> e+e-) = 7.7 ± 2.1(stat) +0.5(syst) ± 1.0(lumi) pb for di-lepton invariant masses m + - between 70 and -0.9 ee root 110 GeV/c2. First measurements of the W cross section ratio, σ(pp -> W+X)/σ(pp -> W-X), at s = 500 GeV are also reported. (en)
Title
  • Measurement of the W -> eν and Z/γ* -> e+e- Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at root s = 500 GeV
  • Measurement of the W -> eν and Z/γ* -> e+e- Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at root s = 500 GeV (en)
skos:prefLabel
  • Measurement of the W -> eν and Z/γ* -> e+e- Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at root s = 500 GeV
  • Measurement of the W -> eν and Z/γ* -> e+e- Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at root s = 500 GeV (en)
skos:notation
  • RIV/68407700:21340/12:00193511!RIV13-MSM-21340___
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(LA09013), S, Z(MSM6840770039)
http://linked.open...iv/cisloPeriodika
  • 9
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
  • 148998
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21340/12:00193511
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • leptonic decay; RHIC; quantum chromodynamics (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [86ED33788976]
http://linked.open...i/riv/nazevZdroje
  • Physical Review D
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
  • 85
http://linked.open...iv/tvurceVysledku
  • Agakishiev, G.
  • Aggarwal, M. M.
  • Ahammed, Z.
  • Bielčík, Jaroslav
  • Pachr, Miloš
  • Alakhverdyants, A. V.
  • Adamczyk, L.
  • Hájková, Olga
http://linked.open...n/vavai/riv/zamer
issn
  • 1550-7998
number of pages
http://bibframe.org/vocab/doi
  • 10.1103/PhysRevD.85.092010
http://localhost/t...ganizacniJednotka
  • 21340
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