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An improved search for the electric dipole moment of the $τ$ lepton

MPS-Authors

Inami,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hayasaka,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Adachi,  I.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Aihara,  H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Al Said,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Asner,  D.M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Aulchenko,  V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Aushev,  T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ayad,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Babu,  V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bahinipati,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Behera,  P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bessner,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bhuyan,  B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bilka,  T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Biswal,  J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bobrov,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bonvicini,  G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bozek,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bračko,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Browder,  T.E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Campajola,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Červenkov,  D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cheon,  B.G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Chilikin,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cho,  H.E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cho,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Choi,  Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Choudhury,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cinabro,  D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cunliffe,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Das,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

De Nardo,  G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Dhamija,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Di Capua,  F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Doležal,  Z.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Dong,  T.V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Dubey,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Eidelman,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Epifanov,  D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ferber,  T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Fulsom,  B.G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Garg,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gaur,  V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gabyshev,  N.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Garmash,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Giri,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Goldenzweig,  P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Golob,  B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Greenwald,  D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gudkova,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hadjivasiliou,  C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hartbrich,  O.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hayashii,  H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hedges,  M.T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hou,  W.-S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hsu,  C.-L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Iijima,  T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Inguglia,  G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ishikawa,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Itoh,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Iwasaki,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Iwasaki,  Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jacobs,  W.W.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jang,  E.-J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jin,  Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Joo,  C.W.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Joo,  K.K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kato,  Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kawasaki,  T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kichimi,  H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kim,  C.H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kim,  D.Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kim,  S.H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kim,  Y.-K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kimmel,  T.D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kinoshita,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kodyš,  P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Konno,  T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Korpar,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kroeger,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Krokovny,  P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kulasiri,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kumar,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kumar,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kumara,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kwon,  Y.-J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lalwani,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lange,  J.S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lee,  S.C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Li,  C.H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Li,  J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Li,  L.K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Li,  Y.B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Li Gioi,  L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Libby,  J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Liventsev,  D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

MacQueen,  C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Masuda,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Matsuda,  T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Matvienko,  D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Merola,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Metzner,  F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mizuk,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mohanty,  G.B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mohanty,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Moon,  T.J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Nakao,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Natochii,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Nayak,  L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Nayak,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Nishida,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ogawa,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ono,  H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Onuki,  Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Oskin,  P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Pakhlov,  P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Pakhlova,  G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Pardi,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Park,  S.-H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Paul,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Pedlar,  T.K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Pestotnik,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Piilonen,  L.E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Podobnik,  T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Popov,  V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Prencipe,  E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Prim,  M.T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Rabusov,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Röhrken,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Rostomyan,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Rout,  N.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Russo,  G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sahoo,  D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sandilya,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sangal,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Santelj,  L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sanuki,  T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Savinov,  V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Schnell,  G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Schwanda,  C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Seino,  Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Senyo,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sevior,  M.E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Shapkin,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sharma,  C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Shiu,  J.-G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Shwartz,  B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Simon,  F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Solovieva,  E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Starič,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Stottler,  Z.S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Strube,  J.F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sumisawa,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sutcliffe,  W.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Takizawa,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Tamponi,  U.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Tanida,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Tao,  Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Tenchini,  F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Trabelsi,  K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Uchida,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Uehara,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Uno,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ushiroda,  Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Van Tonder,  R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Varner,  G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Vinokurova,  A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Wang,  C.H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Wang,  E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Wang,  P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Watanabe,  M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Watanuki,  S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Won,  E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Xu,  X.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Yabsley,  B.D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Yan,  W.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Yang,  S.B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ye,  H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Yin,  J.H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Yusa,  Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zhang,  Z.P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zhilich,  V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zhukova,  V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

Inami, K., Hayasaka, K., Adachi, I., Aihara, H., Al Said, S., Asner, D., et al. (2022). An improved search for the electric dipole moment of the $τ$ lepton. Journal of High Energy Physics, 04, 110. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2021-354.


Cite as: https://hdl.handle.net/21.11116/0000-000C-B4C1-E
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 ${\rm Re}(d_\tau) = ( -0.62 \pm 0.63 ) \times 10^{-17} ~e{\rm cm}$ and ${\rm Im}(d_\tau) = ( -0.40 \pm 0.32 ) \times 10^{-17} ~e{\rm cm}$, 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.