About: Evidence for Production of Single Top Quarks and First Direct Measurement of |Vtb|     Goto   Sponge   NotDistinct   Permalink

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Description
  • The D0 Collaboration presents first evidence for the production of single top quarks at the Fermilab Tevatron ppbar collider. Using a 0.9 fb^-1 dataset, we apply a multivariate analysis to separate signal from background and measure sigma(ppbar->tb+X,tqb+X) = 4.9 +- 1.4 pb. The probability to measure a cross section at this value or higher in the absence of signal is 0.035%, corresponding to a 3.4 standard deviation significance. We use the cross section measurement to directly determine the CKM matrix element that describes the Wtb coupling.
  • The D0 Collaboration presents first evidence for the production of single top quarks at the Fermilab Tevatron ppbar collider. Using a 0.9 fb^-1 dataset, we apply a multivariate analysis to separate signal from background and measure sigma(ppbar->tb+X,tqb+X) = 4.9 +- 1.4 pb. The probability to measure a cross section at this value or higher in the absence of signal is 0.035%, corresponding to a 3.4 standard deviation significance. We use the cross section measurement to directly determine the CKM matrix element that describes the Wtb coupling. (en)
  • D0 kolaborace prezentuje první pozorování produkce samotného top kvarku s účinným průřezem 4.9 +/- +1.4 pb. Pravděpodobnost pozorování takového účinného průřezu při absenci signálu je 0.0035%, což odpovídá 3.4 směrodatným odchylkám. Použitím tohoto účinného průřezu poprvé přímo měříme |Vtb| element CKM matice (cs)
Title
  • Evidence for Production of Single Top Quarks and First Direct Measurement of |Vtb|
  • Evidence for Production of Single Top Quarks and First Direct Measurement of |Vtb| (en)
  • Evidence produkování jednotlivých top kvarků a první přímé měření |Vtb| (cs)
skos:prefLabel
  • Evidence for Production of Single Top Quarks and First Direct Measurement of |Vtb|
  • Evidence for Production of Single Top Quarks and First Direct Measurement of |Vtb| (en)
  • Evidence produkování jednotlivých top kvarků a první přímé měření |Vtb| (cs)
skos:notation
  • RIV/68407700:21340/07:04136487!RIV08-MSM-21340___
http://linked.open.../vavai/riv/strany
  • 181802;0
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(1P04LA210), P(1P05LA257), P(GP202/05/P583), P(LC527), Z(AV0Z10100502), Z(MSM0021620859)
http://linked.open...iv/cisloPeriodika
  • 18
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
  • 420838
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21340/07:04136487
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • CKM matrix; single top; top quark (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [70DE52220014]
http://linked.open...i/riv/nazevZdroje
  • Physical Review Letters
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
  • 98
http://linked.open...iv/tvurceVysledku
  • Abazov, V. M.
  • Šimák, Vladislav
  • Hubáček, Zdeněk
  • Otec, Roman
http://linked.open...n/vavai/riv/zamer
issn
  • 0031-9007
number of pages
http://localhost/t...ganizacniJednotka
  • 21340
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