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ISSN - 00319007, EISSN - 10797114, Physical Review Letters, 2006, vol. 97, p. -

Observation of a near-threshold D0D̄0π0 enhancement in B→D0D̄0π0K decay

Gokhroo G., Majumder G., Abe K., Abe K., Adachi I., Aihara H., Anipko D., Aushev T., Aziz T., Bakich A. M., Balagura V., Banerjee S., Belous K., Bitenc U., Bizjak I., Blyth S., Bozek A., Bračko M., Brodzicka J., Browder T. E., Chang P., Chao Y., Chen A., Chen K. F., Chen W. T., Chistov R., Choi S. K., Choi Y., Choi Y. K., Chuvikov A., Cole S., Dalseno J., Danilov M., Dash M., Eidelman S., Fratina S., Gershon T., Go A., Golob B., Gorišek A., Ha H., Haba J., Hayasaka K., Hazumi M., Heffernan D., Hokuue T., Hoshi Y., Hou S., Hou W. S., Hsiung Y. B., Iijima T., Ishikawa A., Itoh R., Iwasaki M., Iwasaki Y., Kang J. H., Kawai H., Kawasaki T., Kichimi H., Kim H. O., Kim Y. J., Korpar S., Križan P., Krokovny P., Kulasiri R., Kumar R., Kuo C. C., Kwon Y. J., Lange J. S., Leder G., Lesiak T., Lin S. W., Liventsev D., Mandl F., Matsumoto T., McOnie S., Mitaroff W., Miyata H., Miyazaki Y., Mizuk R., Moloney G. R., Nagamine T., Nagasaka Y., Nakao M., Nishida S., Nitoh O., Noguchi S., Ogawa S., Ohshima T., Okabe T., Okuno S., Olsen S. L., Ostrowicz W., Ozaki H., Pakhlov P.

We report the first observation of a near-threshold enhancement in the D0D̄0π0 system from B→D0D̄0π0K decays using a 414fb-1 data sample collected at the Υ(4S) resonance. The enhancement peaks at a mass M=3875.2±0.7-1.6+0.3±0.8MeV/c2 and the branching fraction for events in the peak is B(B→D0D̄0π0K)=(1.22±0.31+0.23-0.30) ×10-4. The data were collected with the Belle detector at the KEKB energy-asymmetric e+e- collider. © 2006 The American Physical Society.