Observation of Bs0→D¯0KS0and Evidence forBs0→D¯*0KS0Decaysстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 января 2017 г.
Аннотация:The first observation of the B0s→D¯0K0SBs0→D¯0KS0 decay mode and evidence for the B0s→D¯∗0K0SBs0→D¯∗0KS0 decay mode are reported. The data sample corresponds to an integrated luminosity of 3.0 fb−1fb−1 collected in pppp collisions by LHCb at center-of-mass energies of 7 and 8 TeV. The branching fractions are measured to be
B(B0s→D¯0K¯0)B(B0s→D¯∗0K¯0)=(4.3±0.5(stat)±0.3(syst)±0.3(frag)±0.6(norm))×10−4,=(2.8±1.0(stat)±0.3(syst)±0.2(frag)±0.4(norm))×10−4,
B(Bs0→D¯0K¯0)=(4.3±0.5(stat)±0.3(syst)±0.3(frag)±0.6(norm))×10−4,B(Bs0→D¯∗0K¯0)=(2.8±1.0(stat)±0.3(syst)±0.2(frag)±0.4(norm))×10−4,
where the uncertainties are due to contributions coming from statistical precision, systematic effects, and the precision of two external inputs, the ratio fs/fdfs/fd and the branching fraction of B0→D¯0K0SB0→D¯0KS0, which is used as a calibration channel.