ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2010, vol. 81, p. -
Search for B0→K*0K̄ *0, B0→K*0K*0 and B0→K+π-K∑π± decays
We report a search for the decays B0→K*0K ̄*0 and B0→K*0K *0. We also measure other charmless decay modes with K +π-K-π+ and K +π-K+π- final states. The results are obtained from a data sample containing 657×106 BB̄ pairs collected with the Belle detector at the KEKB asymmetric-energy e +e- collider. We set upper limits on the branching fractions for B0→K*0K̄*0 and B0→K*0K*0 of 0.81×10 -6 and 0.20×10-6, respectively, at the 90% confidence level. © 2010 The American Physical Society.