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, T.Biswal, J.Bobrov, A.Bonvicini, G.Bozek, A.Bračko, M.Browder, T. E.Campajola, M.Červenkov, D.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, Z.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, P.Konno, T.Korpar, S.Križan, 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.Gioi, L. L.Libby, J.Liventsev, D.MacQueen, C.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Metzner, F.Miyabayashi, K.Mizuk, R.Mohanty, G. B.Mohanty, S.Moon, T. J.Nakao, M.Natochii, A.Nayak, L.Nayak, M.Nisar, N. K.Nishida, S.Ogawa, S.Ono, H.Onuki, Y.Oskin, P.Pakhlov, P.Pakhlova, G.Pardi, S.Park, S.-H.Paul, S.Pedlar, T. K.Pestotnik, R.Piilonen, Leo E.Podobnik, T.Popov, V.Prencipe, E.Prim, M. T.Rabusov, A.Röhrken, M.Rostomyan, A.Rout, N.Russo, G.Sahoo, D.Sandilya, S.Sangal, A.Santelj, L.Sanuki, T.Savinov, V.Schnell, G.Schwanda, C.Seino, Y.Senyo, K.Sevior, M. E.Shapkin, M.Sharma, C.Shiu, J-G.Shwartz, B.Simon, F.Solovieva, E.Starič, M.Stottler, Z. S.Strube, J. F.Sumisawa, K.Sutcliffe, W.Takizawa, M.Tamponi, U.Tanida, K.Tao, Y.Tenchini, F.Trabelsi, K.Uchida, M.Uehara, S.Uno, S.Ushiroda, Y.Van Tonder, R.Varner, G.Vinokurova, A.Wang, C. H.Wang, E.Wang, P.Watanabe, M.Watanuki, S.Won, E.Xu, X.Yabsley, B. D.Yan, W.Yang, S. B.Ye, H.Yin, J. H.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhukova, V.2022-04-252022-04-252022-04-20Journal of High Energy Physics. 2022 Apr 20;2022(4):110http://hdl.handle.net/10919/109740We report a measurement of the electric dipole moment of the τ lepton (dτ) using an 833 fb−1 data sample collected near the Υ(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 dτ as Re(dτ) = (−0.62 ± 0.63) × 10−17 ecm and Im(dτ) = (−0.40 ± 0.32) × 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.application/pdfenCreative Commons Attribution 4.0 InternationalArticle - Refereed2022-04-24The Author(s)https://doi.org/10.1007/JHEP04(2022)110