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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2006, vol. 73, p. -

Charge asymmetry of same-sign dileptons in B0-B̄0 mixing

Nakano E., Abe K., Abe K., Aihara H., Asano Y., Aushev T., Bakich A. M., Ban Y., Barberio E., Bitenc U., Bizjak I., Blyth S., Bondar A., Bozek A., Bračko M., Browder T. E., Chen A., Chen W. T., Cheon B. G., Choi Y., Chuvikov A., Dalseno J., Danilov M., Dash M., Dragic J., Drutskoy A., Eidelman S., Enari Y., Fratina S., Gershon T., Gokhroo G., Golob B., Hara T., Hastings N. C., Hayasaka K., Hayashii H., Hazumi M., Hinz L., Hokuue T., Hoshi Y., Hou S., Hou W. S., Iijima T., Imoto A., Inami K., Ishikawa A., Itoh R., Iwasaki M., Kang J. H., Kang J. S., Katayama N., Kawai H., Kawasaki T., Khan H. R., Kichimi H., Kim H. O., Kim S. K., Kim S. M., Korpar S., Križan P., Krokovny P., Kumar S., Kuo C. C., Kwon Y. J., Lange J. S., Leder G., Lesiak T., Li J., Lin S. W., Liventsev D., Majumder G., Marlow D., Matsumoto T., Matyja A., Mitaroff W., Miyabayashi K., Miyake H., Miyata H., Mizuk R., Mohapatra D., Mori T., Nagamine T., Nagasaka Y., Nakao M., Nakazawa H., Natkaniec Z., Nishida S., Nitoh O., Ogawa S., Ohshima T., Okabe T., Okuno S., Olsen S. L., Ozaki H., Palka H.

We report a measurement of the charge asymmetry for same-sign dileptons in B0-B̄0 mixing, Asl. The data were collected with the Belle detector at KEKB. Using a data sample of 78fb-1 recorded at the Υ(4S) resonance and 9fb-1 recorded at an energy 60 MeV below the resonance, we measure Asl=(-1.1±7.9(stat)±8.5(sys))×10-3. © 2006 The American Physical Society.