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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2006, vol. 74, p. -

Improved measurements of color-suppressed decays B̄0→D0π0, D0η, D0ω, D*0π0, D*0η and D*0ω

Blyth S., Abe K., Abe K., Adachi I., Aihara H., Anipko D., Aulchenko V., Aushev T., Bakich A. M., Balagura V., Barberio E., Bay A., Bedny I., Belous K., Bitenc U., Bizjak I., Bozek A., Bračko M., Brodzicka J., Browder T. E., Chang M. C., Chao Y., Chen A., Chen K. F., Chen W. T., Cheon B. G., Chistov R., Choi Y., Choi Y. K., Chuvikov A., Cole S., Dalseno J., Dash M., Drutskoy A., Eidelman S., Fratina S., Gabyshev N., Garmash A., Gershon T., Go A., Gokhroo G., Golob B., Gorišek A., Ha H., Haba J., Hara T., Hayasaka K., Hayashii H., Hazumi M., Heffernan D., Hokuue T., Hoshi Y., Hou S., Hou W. S., Hsiung Y. B., Iijima T., Imoto A., Inami K., Ishikawa A., Itoh R., Iwasaki M., Iwasaki Y., Kang J. H., Katayama N., Kawai H., Kawasaki T., Khan H. R., Kichimi H., Kim H. J., Kim H. O., Kim Y. J., Korpar S., Križan P., Krokovny P., Kumar R., Kuo C. C., Kuzmin A., Kwon Y. J., Leder G., Lee J., Lin S. W., Liventsev D., Mandl F., Matsumoto T., Matyja A., McOnie S., Mitaroff W., Miyabayashi K., Miyake H., Miyata H., Miyazaki Y., Mizuk R., Moloney G. R., Nagamine T., Nakano E.

We present improved measurements of the branching fractions of the color-suppressed decays B̄0→D(*)0h0, where h0 represents a light neutral meson π0, η or ω. The measurements are based on a data sample of 140fb-1 collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider, corresponding to 7 times the luminosity of the previous Belle measurements. All the measured branching fractions fall in the range 1.4-2.4×10-4, which is significantly higher than theoretical predictions based on naive factorization. © 2006 The American Physical Society.