# Study of Time-Dependent $CP$ Asymmetry in Neutral $B$ Decays to $J/\psi\pi^0$

Abstract : e 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).
Document type :
Journal articles
Complete list of metadata

http://hal.in2p3.fr/in2p3-00014100
Contributor : Hélène Kerec Connect in order to contact the contributor
Submitted on : Tuesday, November 4, 2003 - 10:26:58 AM
Last modification on : Saturday, October 9, 2021 - 3:59:56 AM

### Citation

B. Aubert, D. Boutigny, J.M. Gaillard, A. Hicheur, Y. Karyotakis, et al.. Study of Time-Dependent $CP$ Asymmetry in Neutral $B$ Decays to $J/\psi\pi^0$. Physics Letters B, Elsevier, 2003, 91, pp.061802. ⟨in2p3-00014100⟩

Record views