Study of time-dependent CP asymmetry in neutral BB decays to J/ψπ0J/\psi \pi^0

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Babar Collaboration - (Author)
  • Chair of Opto-Electronics
  • Department of Distributed and Data Intensive Computing (VDR)
  • Central Unit Faculty of Physics
  • Dresden University of Technology
  • CAS - Institute of High Energy Physics
  • University of California at Berkeley
  • University of Birmingham
  • Ruhr University Bochum
  • University of California at Santa Cruz
  • California Institute of Technology
  • University of Colorado Boulder
  • Colorado State University
  • University of Edinburgh
  • University of Iowa
  • Iowa State University
  • Laboratoire de l’Accélérateur Linéaire
  • Royal Holloway University of London
  • University of Mississippi
  • Universite Paris 7
  • Princeton University
  • Commissariat à l'énergie atomique
  • Stanford Linear Accelerator Center (SLAC)
  • Stanford University
  • Albany State University
  • University of Wisconsin-Madison

Abstract

We present the first study of the time-dependent CP-violating asymmetry in B0 -> J/psi pi0 decays using e+e- annihilation data collected with the BaBar detector at the Upsilon(4S) resonance during the years 1999-2002 at the PEP-II asymmetric-energy B Factory at SLAC. Using approximately 88 million BBbar pairs, our results for the coefficients of the cosine and sine terms of the CP asymmetry are C_(J/psi pi0) = 0.38 +/- 0.41 (stat) +/- 0.09 (syst) and S_(J/psi pi0) = 0.05 +/- 0.49 (stat) +/- 0.16 (syst).

Details

Original languageEnglish
Article number061802
JournalPhysical review letters
Volume91
Publication statusPublished - 2003
Peer-reviewedYes

External IDs

Scopus 79961019699

Keywords