Measurement of Branching Fractions of Radiative Charm Decays
Author | : |
Publisher | : |
Total Pages | : 8 |
Release | : 2008 |
ISBN-10 | : OCLC:1061399122 |
ISBN-13 | : |
Rating | : 4/5 (22 Downloads) |
Book excerpt: We present a measurement of the branching fractions for the Cabibbo-favored radiative decay, D° → {bar K}*°?, and the Cabibbo-suppressed radiative decay, D° →??. These measurements are based on a data sample corresponding to an integrated luminosity of 387.1 fb−1, recorded with the BABAR detector at the PEP-II ee− asymmetric-energy collider operating at center-of-mass energies 10.58 and 10.54 GeV. We measure the branching fractions relative to the well-studied decay D° → K−?+ and find?(D° → {bar K}*°?)/?(D° → K−?+) = (8.43 ± 0.51 ± 0.70) x 10−3 and?(D° →??)/?(D° → K−?+) = (7.15 ± 0.78 ± 0.69) x 10−4, where the first error is statistical and the second is systematic. This is the first measurement of?(D° → {bar K}*°?).