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ISSN - 00319007, EISSN - 10797114, Physical Review Letters, 2003, vol. 91, p. 241802/1-241802/6

Evidence for B → φφK

Huang H. C., Abe K., Abe K., Abe T., Adachi I., Aihara H., Akatsu M., Aso T., Aulchenko V., Aushev T., Bakich A. M., Ban Y., Banas E., Bay A., Bedny I., Behera P. K., Bizjak I., Bondar A., Bozek A., Bračko M., Browder T. E., Casey B. C K, Chang P., Chao Y., Chen K. F., Cheon B. G., Chistov R., Choi Y., Choi Y. K., Danilov M., Dong L. Y., Drutskoy A., Eidelman S., Eiges V., Enari Y., Fukunaga C., Gabyshev N., Garmash A., Gershon T., Golob B., Guo R., Haba J., Handa F., Hara T., Hastings N. C., Hayashii H., Hazumi M., Hinz L., Hokuue T., Hoshi Y., Hou W. S., Hsiung Y. B., Igarashi Y., Iijima T., Inami K., Ishikawa A., Itoh R., Iwasaki Y., Jang H. K., Kang J. H., Kang J. S., Kapusta P., Katayama N., Kawai H., Kawamura N., Kawasaki T., Kichimi H., Kim D. W., Kim H. J., Kim H., Kim J. H., Kinoshita K., Koppenburg P., Korpar S., Križan P., Krokovny P., Kulasiri R., Kumar S., Kwon Y. J., Leder G., Lee S. H., Lesiak T., Li J., Limosani A., Lin S. W., Liventsev D., MacNaughton J., Majumder G., Mandl F., Marlow D., Matsumoto H., Matsumoto T., Mitaroff W., Miyata H., Moloney G. R., Mori T.

Evidence for the charmless three-body decay B→φφK was observed. The branching fraction Β(B±→φφK±) = (2.6-0.9 +1.1±0.3) × 10-6 for Mφφ>2.85 GeV/c2, was measured with a significance of 5.1σ. No signal was observed for the decay B→fJ(2220)K with fJ(2220)→φφ. Significant signals were also observed for B±→ηcK± with ηc→φφ, with ηc → φK+K-, and with ηc→2(K+K-), as well as a signal for B±→J/ψK± with J/ψ→φK+K-.