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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

Chiang C. C., Aihara H., Arinstein K., Aulchenko V., Aushev T., Bakich A. M., Balagura V., Barberio E., Belous K., Bhardwaj V., Bischofberger M., Bondar A., Bozek A., Bračko M., Browder T. E., Chang P., Chao Y., Chen A., Chen P., Cheon B. G., Cho I. S., Choi Y., Dalseno J., Das A., Doležal Z., Drutskoy A., Eidelman S., Feindt M., Gabyshev N., Goldenzweig P., Ha H., Hara T., Hayasaka K., Hayashii H., Horii Y., Hoshi Y., Hsiung Y. B., Iijima T., Inami K., Itoh R., Iwasaki M., Joshi N. J., Kang J. H., Kapusta P., Kawasaki T., Kiesling C., Kim H. J., Kim H. O., Kinoshita K., Ko B. R., Korpar S., Kreps M., Križan P., Krokovny P., Kwon Y. J., Kyeong S. H., Lange J. S., Lee M. J., Lee S. H., Li J., Limosani A., Liu C., Liu Y., Liventsev D., Louvot R., Matyja A., McOnie S., Miyabayashi K., Miyata H., Miyazaki Y., Nakano E., Nakao M., Natkaniec Z., Neubauer S., Nishida S., Nishimura K., Nitoh O., Ogawa S., Okuno S., Olsen S. L., Ostrowicz W., Pakhlova G., Park C. W., Park H., Park H. K., Park K. S., Pestotnik R., Petrič M., Piilonen L. E.

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.