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

K Inami; K Hayasaka; I Adachi; H Aihara; S. Al Said; D. M Asner; V Aulchenko; T Aushev; R Ayad; V Babu; S Bahinipati; P Behera; M Bessner; B Bhuyan; T Bilka; J Biswal; A Bobrov; G Bonvicini; A Bozek; M Bračko; T. E Browder; M Campajola; D Červenkov; B. G Cheon; K Chilikin; H. E Cho; K Cho; Y Choi; S Choudhury; D Cinabro; S Cunliffe; S Das; G De Nardo; R Dhamija; F Di Capua; Z Doležal; T. V Dong; S Dubey; S Eidelman; D Epifanov; T Ferber; B. G Fulsom; R Garg; V Gaur; N Gabyshev; A Garmash; A Giri; P Goldenzweig; B Golob; D Greenwald; K Gudkova; C Hadjivasiliou; O Hartbrich; H Hayashii; M. T Hedges; W. -S Hou; C. -L Hsu; T Iijima; G Inguglia; A Ishikawa; R Itoh; M Iwasaki; Y Iwasaki; W. W Jacobs; E. -J Jang; Y Jin; C. W Joo; K. K Joo; Y Kato; T Kawasaki; H Kichimi; C. H Kim; D. Y Kim; S. H Kim; Y. -K Kim; T. D Kimmel; K Kinoshita; P Kodyš; T Konno; S Korpar; R Kroeger; P Krokovny; R Kulasiri; M Kumar; R Kumar; K Kumara; Y. -J Kwon; K Lalwani; J. S Lange; S. C Lee; C. H Li; J Li; L. K Li; Y. B Li; L. Li Gioi; J Libby; D Liventsev; C MacQueen; M Masuda; T Matsuda; D Matvienko; M Merola; F Metzner; R Mizuk; G. B Mohanty; S Mohanty; T. J Moon; M Nakao; A Natochii; L Nayak; M Nayak; S Nishida; S Ogawa; H Ono; Y Onuki; P Oskin; P Pakhlov; G Pakhlova; S Pardi; S. -H Park; S Paul; T. K Pedlar; R Pestotnik; L. E Piilonen; T Podobnik; V Popov; E Prencipe; M. T Prim; A Rabusov; M Röhrken; A Rostomyan; N Rout; G Russo; D Sahoo; S Sandilya; A Sangal; L Santelj; T Sanuki; V Savinov; G Schnell; C Schwanda; Y Seino; K Senyo; M. E Sevior; M Shapkin; C Sharma; J. -G Shiu; B Shwartz; F Simon; E Solovieva; M Starič; Z. S Stottler; J. F Strube; K Sumisawa; W Sutcliffe; M Takizawa; U Tamponi; K Tanida; Y Tao; F Tenchini; K Trabelsi; M Uchida; S Uehara; S Uno; Y Ushiroda; R Van Tonder; G Varner; A Vinokurova; C. H Wang; E Wang; P Wang; M Watanabe; S Watanuki; E Won; X Xu; B. D Yabsley; W Yan; S. B Yang; H Ye; J. H Yin; Y Yusa; Z. P Zhang; V Zhilich; V Zhukova; BELLE Collaboration

doi:10.1007/JHEP04(2022)110

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

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

K Inami, K Hayasaka, I Adachi, H Aihara, S. Al Said, D. M Asner, V Aulchenko, T Aushev, R Ayad, V Babu, …

JHEP, Vol.2022(4), pp.110-17

20/04/2022

DOI: https://doi.org/10.1007/JHEP04(2022)110

Abstract

Physics - High Energy Physics - Experiment

JHEP04(2022)110 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.

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Title: An improved search for the electric dipole moment of the $\tau$ lepton
Creators - without role: K Inami - Nagoya University
K Hayasaka - The Belle Collaboration
I Adachi - The Belle Collaboration
H Aihara - The Belle Collaboration
S. Al Said - The Belle Collaboration
D. M Asner - The Belle Collaboration
V Aulchenko - The Belle Collaboration
T Aushev - The Belle Collaboration
R Ayad - The Belle Collaboration
V Babu - The Belle Collaboration
S Bahinipati - The Belle Collaboration
P Behera - The Belle Collaboration
M Bessner - The Belle Collaboration
B Bhuyan - The Belle Collaboration
T Bilka - The Belle Collaboration
J Biswal - The Belle Collaboration
A Bobrov - The Belle Collaboration
G Bonvicini - The Belle Collaboration
A Bozek - The Belle Collaboration
M Bračko - The Belle Collaboration
T. E Browder - The Belle Collaboration
M Campajola - The Belle Collaboration
D Červenkov - The Belle Collaboration
B. G Cheon - The Belle Collaboration
K Chilikin - The Belle Collaboration
H. E Cho - The Belle Collaboration
K Cho - The Belle Collaboration
Y Choi - The Belle Collaboration
S Choudhury - The Belle Collaboration
D Cinabro - The Belle Collaboration
S Cunliffe - The Belle Collaboration
S Das - The Belle Collaboration
G De Nardo - The Belle Collaboration
R Dhamija - The Belle Collaboration
F Di Capua - The Belle Collaboration
Z Doležal - The Belle Collaboration
T. V Dong - The Belle Collaboration
S Dubey - The Belle Collaboration
S Eidelman - The Belle Collaboration
D Epifanov - The Belle Collaboration
T Ferber - The Belle Collaboration
B. G Fulsom - The Belle Collaboration
R Garg - The Belle Collaboration
V Gaur - The Belle Collaboration
N Gabyshev - The Belle Collaboration
A Garmash - The Belle Collaboration
A Giri - The Belle Collaboration
P Goldenzweig - The Belle Collaboration
B Golob - The Belle Collaboration
D Greenwald - The Belle Collaboration
K Gudkova - The Belle Collaboration
C Hadjivasiliou - The Belle Collaboration
O Hartbrich - The Belle Collaboration
H Hayashii - The Belle Collaboration
M. T Hedges - The Belle Collaboration
W. -S Hou - The Belle Collaboration
C. -L Hsu - The Belle Collaboration
T Iijima - The Belle Collaboration
G Inguglia - The Belle Collaboration
A Ishikawa - The Belle Collaboration
R Itoh - The Belle Collaboration
M Iwasaki - The Belle Collaboration
Y Iwasaki - The Belle Collaboration
W. W Jacobs - The Belle Collaboration
E. -J Jang - The Belle Collaboration
Y Jin - The Belle Collaboration
C. W Joo - The Belle Collaboration
K. K Joo - The Belle Collaboration
Y Kato - The Belle Collaboration
T Kawasaki - The Belle Collaboration
H Kichimi - The Belle Collaboration
C. H Kim - The Belle Collaboration
D. Y Kim - The Belle Collaboration
S. H Kim - The Belle Collaboration
Y. -K Kim - The Belle Collaboration
T. D Kimmel - The Belle Collaboration
K Kinoshita - The Belle Collaboration
P Kodyš - The Belle Collaboration
T Konno - The Belle Collaboration
S Korpar - The Belle Collaboration
R Kroeger - The Belle Collaboration
P Krokovny - The Belle Collaboration
R Kulasiri - The Belle Collaboration
M Kumar - The Belle Collaboration
R Kumar - The Belle Collaboration
K Kumara - The Belle Collaboration
Y. -J Kwon - The Belle Collaboration
K Lalwani - The Belle Collaboration
J. S Lange - The Belle Collaboration
S. C Lee - The Belle Collaboration
C. H Li - The Belle Collaboration
J Li - The Belle Collaboration
L. K Li - The Belle Collaboration
Y. B Li - The Belle Collaboration
L. Li Gioi - The Belle Collaboration
J Libby - The Belle Collaboration
D Liventsev - The Belle Collaboration
C MacQueen - The Belle Collaboration
M Masuda - The Belle Collaboration
T Matsuda - The Belle Collaboration
D Matvienko - The Belle Collaboration
M Merola - The Belle Collaboration
F Metzner - The Belle Collaboration
R Mizuk - The Belle Collaboration
G. B Mohanty - The Belle Collaboration
S Mohanty - The Belle Collaboration
T. J Moon - The Belle Collaboration
M Nakao - The Belle Collaboration
A Natochii - The Belle Collaboration
L Nayak - The Belle Collaboration
M Nayak - The Belle Collaboration
S Nishida - The Belle Collaboration
S Ogawa - The Belle Collaboration
H Ono - The Belle Collaboration
Y Onuki - The Belle Collaboration
P Oskin - The Belle Collaboration
P Pakhlov - The Belle Collaboration
G Pakhlova - The Belle Collaboration
S Pardi - The Belle Collaboration
S. -H Park - The Belle Collaboration
S Paul - The Belle Collaboration
T. K Pedlar - The Belle Collaboration
R Pestotnik - The Belle Collaboration
L. E Piilonen - The Belle Collaboration
T Podobnik - The Belle Collaboration
V Popov - The Belle Collaboration
E Prencipe - The Belle Collaboration
M. T Prim - The Belle Collaboration
A Rabusov - The Belle Collaboration
M Röhrken - The Belle Collaboration
A Rostomyan - The Belle Collaboration
N Rout - The Belle Collaboration
G Russo - The Belle Collaboration
D Sahoo - The Belle Collaboration
S Sandilya - The Belle Collaboration
A Sangal - The Belle Collaboration
L Santelj - The Belle Collaboration
T Sanuki - The Belle Collaboration
V Savinov - The Belle Collaboration
G Schnell - The Belle Collaboration
C Schwanda - The Belle Collaboration
Y Seino - The Belle Collaboration
K Senyo - The Belle Collaboration
M. E Sevior - The Belle Collaboration
M Shapkin - The Belle Collaboration
C Sharma - The Belle Collaboration
J. -G Shiu - The Belle Collaboration
B Shwartz - The Belle Collaboration
F Simon - The Belle Collaboration
E Solovieva - The Belle Collaboration
M Starič - The Belle Collaboration
Z. S Stottler - The Belle Collaboration
J. F Strube - The Belle Collaboration
K Sumisawa - The Belle Collaboration
W Sutcliffe - The Belle Collaboration
M Takizawa - The Belle Collaboration
U Tamponi - The Belle Collaboration
K Tanida - The Belle Collaboration
Y Tao - The Belle Collaboration
F Tenchini - The Belle Collaboration
K Trabelsi - The Belle Collaboration
M Uchida - The Belle Collaboration
S Uehara - The Belle Collaboration
S Uno - The Belle Collaboration
Y Ushiroda - The Belle Collaboration
R Van Tonder - The Belle Collaboration
G Varner - The Belle Collaboration
A Vinokurova - The Belle Collaboration
C. H Wang - The Belle Collaboration
E Wang - The Belle Collaboration
P Wang - The Belle Collaboration
M Watanabe - The Belle Collaboration
S Watanuki - The Belle Collaboration
E Won - The Belle Collaboration
X Xu - The Belle Collaboration
B. D Yabsley - The Belle Collaboration
W Yan - The Belle Collaboration
S. B Yang - The Belle Collaboration
H Ye - The Belle Collaboration
J. H Yin - The Belle Collaboration
Y Yusa - The Belle Collaboration
Z. P Zhang - The Belle Collaboration
V Zhilich - The Belle Collaboration
V Zhukova - The Belle Collaboration
BELLE Collaboration
Publication Details: JHEP, Vol.2022(4), pp.110-17
Identifiers: 9933886008331
Academic Unit: University of Tabuk; King Abdulaziz University; King Abdullah University of Science & Technology; Najran University
Language: English
Resource Type: Preprint