Measurement of the Branching Fraction and Polarization for the DecayB−→D*0K*−

2003/08/22 by B. Aubert, R. Barate, D. Boutigny +97 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.1103/physrevlett.92.141801

published as Phys.Rev.Lett.92:141801,2004 · 7 pages, 2 figures, submitted to Phys. Rev. Lett

arxiv created 2003/08/22 · openalex publication_date 2004/04/09 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

We present a study of the decay B^\ensuremath-\ensuremath→D^*0K^*\ensuremath- based on a sample of 86\ifmmode×\else\texttimes\fi10⁶ \ensuremathΥ(4S)\ensuremath→BB decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure the branching fraction B(B^\ensuremath-\ensuremath→D^*0K^*\ensuremath-)=(8.3\ifmmode±\else\textpm\fi1.1(stat)\ifmmode±\else\textpm\fi1.0(syst))\ifmmode×\else\texttimes\fi10^\ensuremath-4, and the fraction of longitudinal polarization in this decay to be \ensuremathΓ_L/\ensuremathΓ=0.86\ifmmode±\else\textpm\fi0.06(stat)\ifmmode±\else\textpm\fi0.03(syst).

Cited by

• Measurement of the ratioB(B−→D*0K−)/B(B−→D*0π−)and of theCPasymmetry ofB−→DCP+*0K−decays