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  • We present a study of the decay B_s^0 -> J/psi phi We obtain the CP-odd fraction in the final state at time zero, R_perp = 0.16 +/- 0.10 (stat) +/- 0.02 (syst), the average lifetime of the (B_s, B_sbar) system, tau (B_s^0) =1.39^{+0.13}_{-0.16} (stat) ^{+0.01}_{-0.02} (syst) ps, and the relative width difference between the heavy and light mass eigenstates, Delta Gamma/Gamma = (Gamma_L - Gamma_H)/Gamma =0.24^{+0.28}_{-0.38} (stat) ^{+0.03}_{-0.04} (syst). With the additional constraint from the world average of the B_s^0$lifetime measurements using semileptonic decays, we find tau (B_s^0)= 1.39 +/- 0.06 ~ps and Delta Gamma/\Gamma = 0.25^{+0.14}_{-0.15}. For the ratio of the B_s^0 and B^0 lifetimes we obtain tau(B_s^0)/tau(B^0)} = 0.91 +/- 0.09 (stat) +/- 0.003 (syst).
  • We present a study of the decay B_s^0 -> J/psi phi We obtain the CP-odd fraction in the final state at time zero, R_perp = 0.16 +/- 0.10 (stat) +/- 0.02 (syst), the average lifetime of the (B_s, B_sbar) system, tau (B_s^0) =1.39^{+0.13}_{-0.16} (stat) ^{+0.01}_{-0.02} (syst) ps, and the relative width difference between the heavy and light mass eigenstates, Delta Gamma/Gamma = (Gamma_L - Gamma_H)/Gamma =0.24^{+0.28}_{-0.38} (stat) ^{+0.03}_{-0.04} (syst). With the additional constraint from the world average of the B_s^0$lifetime measurements using semileptonic decays, we find tau (B_s^0)= 1.39 +/- 0.06 ~ps and Delta Gamma/\Gamma = 0.25^{+0.14}_{-0.15}. For the ratio of the B_s^0 and B^0 lifetimes we obtain tau(B_s^0)/tau(B^0)} = 0.91 +/- 0.09 (stat) +/- 0.003 (syst). (en)
  • Publikace popisuje měření rozdílu doby života v B_s^0 systémech. (cs)
Title
  • Measurement of the Lifetime Difference in the B_s^0 System
  • Measurement of the Lifetime Difference in the B_s^0 System (en)
  • Měření rozdílu doby života v B_s^0 systémech (cs)
skos:prefLabel
  • Measurement of the Lifetime Difference in the B_s^0 System
  • Measurement of the Lifetime Difference in the B_s^0 System (en)
  • Měření rozdílu doby života v B_s^0 systémech (cs)
skos:notation
  • RIV/68407700:21670/05:15117960!RIV06-MSM-21670___
http://linked.open.../vavai/riv/strany
  • 171801-1 ; 171801-7
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(MSM6840770029)
http://linked.open...iv/cisloPeriodika
  • 95
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
  • 529237
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21670/05:15117960
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • D0; Fermilab (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [30951D8DE623]
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
  • 2005
http://linked.open...iv/tvurceVysledku
  • Smolek, Karel
  • Šimák, Vladislav
http://linked.open...n/vavai/riv/zamer
issn
  • 0031-9007
number of pages
http://localhost/t...ganizacniJednotka
  • 21670
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