D^0~0 mixing and other recent charm results from BABAR  

D^0~0 mixing and other recent charm results from BABAR

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作  者:B.Meadows 

机构地区:[1]University of Cincinnati,Department of Physics

出  处:《Chinese Physics C》2010年第6期780-787,共8页中国物理C(英文版)

基  金:Supported by US National Science Foundation grant number phy0757876

摘  要:Studies in which BABAR data have shown evidence for mixing in the neutral charm meson system are presented. A new measurement of the lifetime difference parameter ycp = (1.16±0.22±0.18)% is described. Results are also presented from a systematic study of DK and D*K invariant mass distributions from a 470 fb^-1 sample of asymmetric e^+e^- interactions recorded by the BABAR detector at the PEP-Ⅱ storage rings. A new charmed-strange meson has been observed with mass [3044 ± 8stat (-5^+30 )syst] MeV/c^2 and width [239± 35stat (-42^+46)syst]MeV/c^2.Studies in which BABAR data have shown evidence for mixing in the neutral charm meson system are presented. A new measurement of the lifetime difference parameter ycp = (1.16±0.22±0.18)% is described. Results are also presented from a systematic study of DK and D*K invariant mass distributions from a 470 fb^-1 sample of asymmetric e^+e^- interactions recorded by the BABAR detector at the PEP-Ⅱ storage rings. A new charmed-strange meson has been observed with mass [3044 ± 8stat (-5^+30 )syst] MeV/c^2 and width [239± 35stat (-42^+46)syst]MeV/c^2.

关 键 词:MIXING OSCILLATIONS CHARM MESON spectroscopy 

分 类 号:O572.212[理学—粒子物理与原子核物理]

 

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