Research output: Contribution to journal › Article › peer-review
An improved search for the electric dipole moment of the τ lepton. / The BELLE collaboration.
In: Journal of High Energy Physics, Vol. 2022, No. 4, 110, 04.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - An improved search for the electric dipole moment of the τ lepton
AU - The BELLE collaboration
AU - Inami, K.
AU - Hayasaka, K.
AU - Adachi, I.
AU - Aihara, H.
AU - Al Said, S.
AU - Asner, D. M.
AU - Aulchenko, V.
AU - Aushev, T.
AU - Ayad, R.
AU - Babu, V.
AU - Bahinipati, S.
AU - Behera, P.
AU - Bessner, M.
AU - Bhuyan, B.
AU - Bilka, T.
AU - Biswal, J.
AU - Bobrov, A.
AU - Bonvicini, G.
AU - Bozek, A.
AU - Bračko, M.
AU - Browder, T. E.
AU - Campajola, M.
AU - Červenkov, D.
AU - Cheon, B. G.
AU - Chilikin, K.
AU - Cho, H. E.
AU - Cho, K.
AU - Choi, Y.
AU - Choudhury, S.
AU - Cinabro, D.
AU - Cunliffe, S.
AU - Das, S.
AU - De Nardo, G.
AU - Dhamija, R.
AU - Di Capua, F.
AU - Doležal, Z.
AU - Dong, T. V.
AU - Dubey, S.
AU - Eidelman, S.
AU - Epifanov, D.
AU - Ferber, T.
AU - Fulsom, B. G.
AU - Gabyshev, N.
AU - Garmash, A.
AU - Gudkova, K.
AU - Krokovny, P.
AU - Matvienko, D.
AU - Shwartz, B.
AU - Vinokurova, A.
AU - Zhilich, V.
N1 - Publisher Copyright: © 2022, The Author(s).
PY - 2022/4
Y1 - 2022/4
N2 - We 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) × 10−17ecm and Im(dτ) = (−0.40 ± 0.32) × 10−17ecm, 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.
AB - We 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) × 10−17ecm and Im(dτ) = (−0.40 ± 0.32) × 10−17ecm, 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.
KW - e-e Experiments
KW - Tau Physics
UR - http://www.scopus.com/inward/record.url?scp=85134018610&partnerID=8YFLogxK
U2 - 10.1007/JHEP04(2022)110
DO - 10.1007/JHEP04(2022)110
M3 - Article
AN - SCOPUS:85134018610
VL - 2022
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1029-8479
IS - 4
M1 - 110
ER -
ID: 36703988