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

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; Bilka, Tadeáš; Biswal, J; Bobrov, A; Bonvicini, G; Bozek, A; Bracko, M; Browder, T. E; Campajola, M; Červenkov, Daniel; 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; Doležal, Zdeněk; 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; Kodyš, Peter; 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

doi:10.1007/JHEP04(2022)110

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

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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

Bilka, Tadeáš

Biswal, J

Bobrov, A

Bonvicini, G

Bozek, A

Bracko, M

Browder, T. E

Campajola, M

Červenkov, Daniel

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

Doležal, Zdeněk

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

Kodyš, Peter

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

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Publication date

2022

Published in

Journal of High Energy Physics [online]

Volume / Issue

Neuveden (4)

ISBN / ISSN

ISSN: 1029-8479

ISBN / ISSN

eISSN: 1029-8479

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Faculty of Mathematics and Physics

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/20.500.14178/2858

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Full text of this result is licensed under: Creative Commons Uveďte původ 4.0 International

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