Search for the electric dipole moment of the τ lepton
Inami, K.; Abe, K.; Abe, K.; Abe, R.; Abe, T.; Adachi, I.; Aihara, H.; Akatsu, M.; Asano, Y.; Aso, T.; Aulchenko, V.; Aushev, T.; Bakich, A.M.; Ban, Y.; Banas, E.; Behera, P.K.; Bizjak, I.; Bondar, A.; Browder, T.E.; Chang, P.; Chao, Y.; Cheon, B.G.; Chistov, R.; Choia, Y.; Choi, Y.K.; Dong, L.Y.; Eidelman, S.; Eiges, V.; Enari, Y.; Fukunaga, C.; Gabyshev, N.; Garmash, A.; Gershon, T.; Golob, B.; Hagner, C.; Handa, F.; Hara, T.; Hayashii, H.; Hazumi, M.; Higuchi, I.; Higuchi, T.; Hokuue, T.; Hoshi, Y.; Hou, W.-S.; Huang, H.-C.; Igaki, T.; Iijima, T.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, H.; Jang, H.K.; Kang, J.H.; Kang, J.S.; Katayama, N.; Kawai, H.; Kawakami, Y.; Kawamura, N.; Kawasaki, T.; Kichimi, H.; Kim, H.O.; Kim, H.; Kim, J.H.; Kim, S.K.; Korpar, S.; Krokovny, P.; Kulasiri, R.; Kuzmin, A.; Kwon, Y.-J.; Lange, J.S.; Leder, G.; Lee, S.H.; Li, J.; Liventsev, D.; Lu, R.-S.; MacNaughton, J.; Mandl, F.; Matsuishi, T.; Matsumoto, S.; Matsumoto, T.; Mitaroff, W.; Miyake, H.; Miyata, H.; Nagamine, T.; Nagasaka, Y.; Nakadaira, T.; Nakano, E.; Nakao, M.; Nam, J.W.; Nishida, S.; Nozaki, T.; Ogawak, S.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S.L.; Ostrowicz, W.; Ozaki, H.; Pakhlov, P.
2003

Abstract

We have searched for a CP violation signature arising from an electric dipole moment (dτ) of the τ lepton in the e+e- → τ+τ- reaction. Using an optimal observable method and 29.5 fb-1 of data collected with the Belle detector at the KEKB collider at √s= 10.58 GeV, we find Re(dτ) = (1.15 ± 1.70) × 10-17 ecm and Im(dτ) = (-0.83 ± 0.86) × 10-17 ecm and set the 95% confidence level limits -2.2 x 10-17 < Re(dτ) < 4.5 × 10-17 ecm and -2.5 x 10-17 < Im(dτ) < 0.8 x 10-17 ecm. © 2002 Elsevier Science B.V. All rights reserved.

Details

Title Search for the electric dipole moment of the τ lepton
Author(s) Inami, K. ; Abe, K. ; Abe, K. ; Abe, R. ; Abe, T. ; Adachi, I. ; Aihara, H. ; Akatsu, M. ; Asano, Y. ; Aso, T. ; Aulchenko, V. ; Aushev, T. ; Bakich, A.M. ; Ban, Y. ; Banas, E. ; Behera, P.K. ; Bizjak, I. ; Bondar, A. ; Browder, T.E. ; Chang, P. ; Chao, Y. ; Cheon, B.G. ; Chistov, R. ; Choia, Y. ; Choi, Y.K. ; Dong, L.Y. ; Eidelman, S. ; Eiges, V. ; Enari, Y. ; Fukunaga, C. ; Gabyshev, N. ; Garmash, A. ; Gershon, T. ; Golob, B. ; Hagner, C. ; Handa, F. ; Hara, T. ; Hayashii, H. ; Hazumi, M. ; Higuchi, I. ; Higuchi, T. ; Hokuue, T. ; Hoshi, Y. ; Hou, W.-S. ; Huang, H.-C. ; Igaki, T. ; Iijima, T. ; Ishikawa, A. ; Ishino, H. ; Itoh, R. ; Iwasaki, H. ; Jang, H.K. ; Kang, J.H. ; Kang, J.S. ; Katayama, N. ; Kawai, H. ; Kawakami, Y. ; Kawamura, N. ; Kawasaki, T. ; Kichimi, H. ; Kim, H.O. ; Kim, H. ; Kim, J.H. ; Kim, S.K. ; Korpar, S. ; Krokovny, P. ; Kulasiri, R. ; Kuzmin, A. ; Kwon, Y.-J. ; Lange, J.S. ; Leder, G. ; Lee, S.H. ; Li, J. ; Liventsev, D. ; Lu, R.-S. ; MacNaughton, J. ; Mandl, F. ; Matsuishi, T. ; Matsumoto, S. ; Matsumoto, T. ; Mitaroff, W. ; Miyake, H. ; Miyata, H. ; Nagamine, T. ; Nagasaka, Y. ; Nakadaira, T. ; Nakano, E. ; Nakao, M. ; Nam, J.W. ; Nishida, S. ; Nozaki, T. ; Ogawak, S. ; Ohshima, T. ; Okabe, T. ; Okuno, S. ; Olsen, S.L. ; Ostrowicz, W. ; Ozaki, H. ; Pakhlov, P.
Published in Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume 551
Issue 1-2
Pages 16-26
Date 2003
ISSN 03702693
DOI https://doi.org/10.1016/S0370-2693(02)02984-2
Other identifier(s) View record in Scopus
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