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Limits on the decay-rate difference of neutral B mesons and on CP, T, and CPT violation in B(0-0)B oscillations

Aubert, B ; Barate, R ; Boutigny, D ; Gaillard, J-M ; Hicheur, A ; Karyotakis, Y ; Lees, J P ; Robbe, P ; Tisserand, V ; Zghiche, A ; Palano, A ; Pompili, A ; Chen, J C ; Qi, N D ; Rong, G ; Wang, P ; Zhu, Y S ; Eigen, G ; Ofte, I ; Stugu

Physical review letters, 07 May 2004, Vol.92(18), pp.181801 [Periódico revisado por pares]

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  • Título:
    Limits on the decay-rate difference of neutral B mesons and on CP, T, and CPT violation in B(0-0)B oscillations
  • Autor: Aubert, B ; Barate, R ; Boutigny, D ; Gaillard, J-M ; Hicheur, A ; Karyotakis, Y ; Lees, J P ; Robbe, P ; Tisserand, V ; Zghiche, A ; Palano, A ; Pompili, A ; Chen, J C ; Qi, N D ; Rong, G ; Wang, P ; Zhu, Y S ; Eigen, G ; Ofte, I ; Stugu
  • Assuntos: High Energy Physics - Experiment
  • É parte de: Physical review letters, 07 May 2004, Vol.92(18), pp.181801
  • Descrição: Using events in which one of two neutral B mesons from the decay of an Upsilon(4S) meson is fully reconstructed, we determine parameters governing decay (DeltaGamma(d)/Gamma(d)), CP, and T violation (|q/p|), and CP and CPT violation (Re z,Im z). The results, obtained from an analysis of 88 x 10(6) Upsilon(4S) decays recorded by BABAR, are sgn(Re lambda(CP))DeltaGamma(d)/Gamma(d)=-0.008+/-0.037(stat)+/-0.018(syst)[-0.084,0.068],|q/p|=1.029+/-0.013(stat)+/-0.011(syst)[1.001,1.057],(Re lambda(CP)/|lambda(CP)|) Re z=0.014+/-0.035(stat)+/-0.034(syst)[-0.072,0.101],Im z=0.038+/-0.029(stat)+/-0.025(syst)[-0.028,0.104]. The values inside the square brackets indicate the 90% confidence-level intervals. These results are consistent with standard model expectations.
  • Idioma: Inglês

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