Search for B0→ℓ+- at the Belle detector

  • M. C. Chang
  • , P. Chang
  • , K. Abe
  • , T. Abe
  • , I. Adachi
  • , H. Aihara
  • , M. Akatsu
  • , Y. Asano
  • , T. Aso
  • , V. Aulchenko
  • , T. Aushev
  • , A. M. Bakich
  • , I. Bedny
  • , I. Bizjak
  • , A. Bondar
  • , A. Bozek
  • , M. Bračko
  • , J. Brodzicka
  • , T. E. Browder
  • , Y. Chao
  • K. F. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, L. Y. Dong, S. Eidelman, V. Eiges, C. Fukunaga, N. Gabyshev, T. Gershon, G. Gokhroo, B. Golob, T. Hara, H. Hayashii, M. Hazumi, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. C. Huang, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, J. H. Kim, S. K. Kim, K. Kinoshita, P. Koppenburg, S. Korpar, P. Krokovny, A. Kuzmin, Y. J. Kwon, S. H. Lee, T. Lesiak, J. Li, A. Limosani, S. W. Lin, J. MacNaughton, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyake, H. Miyata, D. Mohapatra, T. Mori, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov

Research output: Contribution to journalArticlepeer-review

Abstract

We report the results of a search for the decay B0→e +e-, μ+μ- and e ±μ based on an analysis of 78 fb -1 of data collected by the Belle detector at KEKB. No candidate events have been found. Upper limits on the branching fractions are calculated at the 90% confidence level: B(B0→e+e -)<1.9×10-7, B(B0 →μ +μ-)<1.6×10-7, and B(B 0→e±μ)<1. 7×10-7. A limit on the Pati-Salam leptoquark mass M LQ46 TeV/c2 is obtained at the 90% confidence level.

Original languageEnglish (US)
Article number111101
JournalPhysical Review D
Volume68
Issue number11
DOIs
StatePublished - 2003

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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