An improved search for the electric dipole moment of the tau lepton

Author
Inami, K
Hayasaka, K
Adachi, I
Aihara, H
Al Said, S
Asner, D. M
Aulchenko, V
Aushev, T
Ayad, R
Babu, V
Bahinipati, S
Behera, P
Bessner, M
Bhuyan, B
Biswal, J
Bobrov, A
Bonvicini, G
Bozek, A
Bracko, M
Browder, T. E
Campajola, M
Cheon, B. G
Chilikin, K
Cho, H. E
Cho, K
Choi, Y
Choudhury, S
Cinabro, D
Cunliffe, S
Das, S
De Nardo, G
Dhamija, R
Di Capua, F
Dong, T., V
Dubey, S
Eidelman, S
Epifanov, D
Ferber, T
Fulsom, B. G
Garg, R
Gaur, V
Gabyshev, N
Garmash, A
Giri, A
Goldenzweig, P
Golob, B
Greenwald, D
Gudkova, K
Hadjivasiliou, C
Hartbrich, O
Hayashii, H
Hedges, M. T
Hou, W-S
Hsu, C-L
Iijima, T
Inguglia, G
Ishikawa, A
Itoh, R
Iwasaki, M
Iwasaki, Y
Jacobs, W. W
Jang, E-J
Jin, Y
Joo, C. W
Joo, K. K
Kato, Y
Kawasaki, T
Kichimi, H
Kiesling, C
Kim, C. H
Kim, D. Y
Kim, S. H
Kim, Y-K
Kimmel, T. D
Kinoshita, K
Konno, T
Korpar, S
Krizan, P
Kroeger, R
Krokovny, P
Kulasiri, R
Kumar, M
Kumar, R
Kumara, K
Kwon, Y-J
Lalwani, K
Lange, J. S
Lee, S. C
Li, C. H
Li, J
Li, L. K
Li, Y. B
Li Gioi, L
Libby, J
Liventsev, D
Publication date
2022Published in
Journal of High Energy Physics [online]Volume / Issue
Neuveden (4)ISBN / ISSN
ISSN: 1029-8479ISBN / ISSN
eISSN: 1029-8479Metadata
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This publication has a published version with DOI 10.1007/JHEP04(2022)110
Abstract
We report a measurement of the electric dipole moment of the tau lepton (d(tau)) using an 833 fb(-1) data sample collected near the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Using an optimal observable method, we obtain the real and imaginary parts of d(tau) as Re(d(tau)) = (-0.62 +/- 0.63) x 10(-17) ecm and Im(d(tau)) = (-0.40 +/- 0.32) x 10(-17) ecm, respectively. These results are consistent with null electric dipole moment at the present level of experimental sensitivity and improve the sensitivity by about a factor of three.
Keywords
e(+)-e(-) Experiments, Tau Physics
Permanent link
https://hdl.handle.net/20.500.14178/2858License
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