2003/10/17 by The BABAR Collaboration, R. Barate, B. Aubert +98 · 1 citation
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevlett.92.251802
published as Phys.Rev.Lett.92:251802,2004 · 7 pages, 3 postscript figures, submitted to Phys. Rev. Lett
arxiv created 2003/10/17 · openalex publication_date 2004/06/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We present a measurement of time-dependent CP-violating asymmetries in decays of neutral B mesons to the final states D^*\ensuremath∓\ensuremathπ^\ifmmode±\else\textpm\fi, using approximately 82\ifmmode×\else\texttimes\fi106 BB events recorded by the BABAR experiment at the PEP-II e+e^\ensuremath- storage ring. Events containing these decays are selected with a partial reconstruction technique, in which only the high-momentum \ensuremathπ^\ifmmode±\else\textpm\fi from the B decay and the low-momentum \ensuremathπ^\ensuremath∓ from the D^*\ensuremath∓ decay are used. We measure the amplitude of the asymmetry to be \ensuremath-0.063\ifmmode±\else\textpm\fi0.024(stat)\ifmmode±\else\textpm\fi0.014(syst) and compute bounds on |sin(2\ensuremathβ+\ensuremathγ)|.