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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2013, vol. 87, p. -

Search for B→h(*) νν̄ with the full Belle Υ(4S) data sample

Lutz O., Neubauer S., Heck M., Kuhr T., Zupanc A., Adachi I., Aihara H., Asner D. M., Aushev T., Aziz T., Bakich A. M., Belous K., Bhardwaj V., Bhuyan B., Bondar A., Bonvicini G., Bozek A., Bračko M., Browder T. E., Chang P., Chekelian V., Chen A., Chen P., Cheon B. G., Chistov R., Cho K., Chobanova V., Choi Y., Cinabro D., Dalseno J., Danilov M., Doležal Z., Drásal Z., Dutta D., Eidelman S., Epifanov D., Farhat H., Fast J. E., Feindt M., Gaur V., Gabyshev N., Ganguly S., Gillard R., Goh Y. M., Golob B., Haba J., Hara T., Hayasaka K., Hayashii H., Hoshi Y., Hou W. S., Hsiung Y. B., Hyun H. J., Iijima T., Ishikawa A., Itoh R., Iwasaki Y., Julius T., Kang J. H., Kapusta P., Kato E., Kawasaki T., Kiesling C., Kim H. J., Kim H. O., Kim J. B., Kim J. H., Kim K. T., Kim M. J., Kinoshita K., Klucar J., Ko B. R., Kodyš P., Korpar S., Kouzes R. T., Križan P., Krokovny P., Kronenbitter B., Kumita T., Kuzmin A., Kwon Y. J., Lange J. S., Lee S. H., Li Y., Liu C., Liu Y., Liventsev D., Matvienko D., Miyabayashi K., Miyata H., Mohanty G. B., Moll A.

We report a search for the rare decays B→h(*) νν̄, where h(z.ast;) stands for K+, KS0, K*+, K*0, π+, π0, ρ+, ρ0 and p. The results are obtained from a 711 fb-1 data sample that contains 772×106BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB e+e- collider. We search for signal candidates by fully reconstructing a hadronic decay of the accompanying B meson and requiring a single h(*) meson left on the signal side. No significant signal is observed and we set upper limits on the branching fractions at 90% confidence level. The measurements of B+→K *+νν̄, B+→π +νν̄, B0→π0νν̄ and B0→ρ0ν ν̄ provide the world's currently most restrictive limits. © 2013 American Physical Society.