Evidence for direct CP violation in B0 → K+ π- decays
Chao, Y.; Chang, P.; Abe, K.; Abe, K.; Abe, N.; Adachi, I.; Aihara, H.; Akai, K.; Akatsu, M.; Akemoto, M.; Asano, Y.; Aso, T.; Aulchenko, V.; Aushev, T.; Aziz, T.; Bahinipati, S.; Bakich, A.M.; Ban, Y.; Barbero, M.; Bay, A.; Bedny, I.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T.E.; Chang, M.-C.; Chen, A.; Chen, K.-F.; Chen, W.T.; Cheon, B.G.; Chistov, R.; Choi, S.-K.; Choi, Y.; Choi, Y.K.; Chuvikov, A.; Cole, S.; Danilov, M.; Dash, M.; Dong, L.Y.; Dowd, R.; Dragic, J.; Drutskoy, A.; Eidelman, S.; Eiges, V.; Enari, Y.; Epifanov, D.; Everton, C.W.; Fang, F.; Flanagan, J.; Fratina, S.; Fujii, H.; Funakoshi, Y.; Furukawa, K.; Gabyshev, N.; Garmash, A.; Gershon, T.; Go, A.; Gokhroo, G.; Golob, B.; Perdekamp, M.G.; Guler, H.; Guo, R.; Haba, J.; Hagner, C.; Handa, F.; Hara, K.; Hara, T.; Hastings, N.C.; Hasuko, K.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heenan, E.M.; Higuchi, I.; Higuchi, T.; Hinz, L.; Hojo, T.; Hokuue, T.; Hoshi, Y.; Hoshina, K.; Hou, S.; Hou, W.-S.; Hsiung, Y.B.; Huang, H.-C.; Igaki, T.; Igarashi, Y.; Iijima, T.; Ikeda, H.; Imoto, A.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, K.; Itoh, R.; Iwamoto, M.
2004

Abstract

The evidence for direct charged particles (CP) violation in the decay B0→K+ π- was investigated with 253 fb-1 of data collected with the Belle detector at the KEKB e + e- collider. 275 x 106 BB̄ pairs were used to observe a B→K±π∓ signal with 2140 ±53 events. Mixing induced CP violation in the B sector was established in b → cc̄s transitions. The result suggests large interference between tree and penguin diagrams and the existence of final state interactions.

Details

Title Evidence for direct CP violation in B0 → K+ π- decays
Author(s) Chao, Y. ; Chang, P. ; Abe, K. ; Abe, K. ; Abe, N. ; Adachi, I. ; Aihara, H. ; Akai, K. ; Akatsu, M. ; Akemoto, M. ; Asano, Y. ; Aso, T. ; Aulchenko, V. ; Aushev, T. ; Aziz, T. ; Bahinipati, S. ; Bakich, A.M. ; Ban, Y. ; Barbero, M. ; Bay, A. ; Bedny, I. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T.E. ; Chang, M.-C. ; Chen, A. ; Chen, K.-F. ; Chen, W.T. ; Cheon, B.G. ; Chistov, R. ; Choi, S.-K. ; Choi, Y. ; Choi, Y.K. ; Chuvikov, A. ; Cole, S. ; Danilov, M. ; Dash, M. ; Dong, L.Y. ; Dowd, R. ; Dragic, J. ; Drutskoy, A. ; Eidelman, S. ; Eiges, V. ; Enari, Y. ; Epifanov, D. ; Everton, C.W. ; Fang, F. ; Flanagan, J. ; Fratina, S. ; Fujii, H. ; Funakoshi, Y. ; Furukawa, K. ; Gabyshev, N. ; Garmash, A. ; Gershon, T. ; Go, A. ; Gokhroo, G. ; Golob, B. ; Perdekamp, M.G. ; Guler, H. ; Guo, R. ; Haba, J. ; Hagner, C. ; Handa, F. ; Hara, K. ; Hara, T. ; Hastings, N.C. ; Hasuko, K. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Heenan, E.M. ; Higuchi, I. ; Higuchi, T. ; Hinz, L. ; Hojo, T. ; Hokuue, T. ; Hoshi, Y. ; Hoshina, K. ; Hou, S. ; Hou, W.-S. ; Hsiung, Y.B. ; Huang, H.-C. ; Igaki, T. ; Igarashi, Y. ; Iijima, T. ; Ikeda, H. ; Imoto, A. ; Inami, K. ; Ishikawa, A. ; Ishino, H. ; Itoh, K. ; Itoh, R. ; Iwamoto, M.
Published in Physical Review Letters
Volume 93
Issue 19
Pages 191802-1-191802-6
Date 2004
ISSN 00319007
DOI https://doi.org/10.1103/PhysRevLett.93.191802
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Laboratories LPHE
Record Appears in Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date 2010-11-05