Search for B→K*νν¯ decays
Abstract
We present a search for the decays B→K*νν¯ using 454×106B Bmacr pairs collected at the Υ(4S) resonance with the BABAR detector at the SLAC PEP-II B-Factory. We first select an event sample where one B is reconstructed in a semileptonic or hadronic mode with one charmed meson. The remaining particles in the event are then examined to search for a B→K*νν¯ decay. The charged K* is reconstructed as K*+→KS0π+ or K*+→K+π0; the neutral K* is identified in K*0→K+π- mode. We establish upper limits at 90% confidence level of B(B+→K*+νν¯)<8×10-5, B(B0→K*0νν¯)<12×10-5, and B(B→K*νν¯)<8×10-5.
- Publication:
-
Physical Review D
- Pub Date:
- October 2008
- DOI:
- 10.1103/PhysRevD.78.072007
- arXiv:
- arXiv:0808.1338
- Bibcode:
- 2008PhRvD..78g2007A
- Keywords:
-
- 13.25.Hw;
- 11.30.Er;
- 12.15.Hh;
- Decays of bottom mesons;
- Charge conjugation parity time reversal and other discrete symmetries;
- Determination of Kobayashi-Maskawa matrix elements;
- High Energy Physics - Experiment
- E-Print:
- 10 pages, 10 postscript figures