Published September 26, 2003
| Published
Journal Article
Open
Measurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B^0→D*+D*−
Chicago
Abstract
We present a measurement of time-dependent CP asymmetries and an updated determination of the CP-odd fraction in the decay B^0→D*+D*− using a data sample of 88×10^6 BB[overbar] pairs collected by the BABAR detector at the PEP-II B Factory at SLAC. We determine the CP-odd fraction to be 0.063±0.055(stat)±0.009(syst). The time-dependent CP asymmetry parameters Im(λ_+) and |λ_+|are determined to be 0.05±0.29(stat)±0.10(syst) and 0.75±0.19(stat)±0.02(syst), respectively. The standard model predicts these parameters to be −sin2β and 1, respectively, in the absence of penguin diagram contributions.
Additional Information
© 2003 The American Physical Society. Received 21 June 2003. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by the DOE and NSF (USA), NSERC (Canada), IHEP (China), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MIST (Russia), and PPARC (United Kingdom). Individuals have received support from the A. P. Sloan Foundation, the Research Corporation, and the Alexander von Humboldt Foundation.Attached Files
Published - PhysRevLett.91.131801.pdf
Files
PhysRevLett.91.131801.pdf
Files
(163.0 kB)
Name | Size | Download all |
---|---|---|
md5:71df0e3a2174dd11118eb4a7ffe7503e
|
163.0 kB | Preview Download |
Additional details
- Eprint ID
- 80037
- Resolver ID
- CaltechAUTHORS:20170809-152449422
- Department of Energy (DOE)
- NSF
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Institute of High Energy Physics (China)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA)
- Centre National de la Recherche Scientifique (CNRS)
- Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
- Bundesministerium für Bildung und Forschung (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Istituto Nazionale di Fisica Nucleare (INFN)
- Stichting voor Fundamenteel Onderzoek der Materie (FOM)
- Research Council of Norway
- Ministry of Education and Science of the Russian Federation
- Particle Physics and Astronomy Research Council (PPARC)
- Alfred P. Sloan Foundation
- Research Corporation
- Alexander von Humboldt Foundation
- Created
-
2017-08-09Created from EPrint's datestamp field
- Updated
-
2021-11-15Created from EPrint's last_modified field