First search for KL →π0γ

(KOTO Collaboration)

doi:10.1103/PhysRevD.102.051103

First search for KL →π0γ

(KOTO Collaboration)

Department of Physics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We report the first search for the KL→π0γ decay, which is forbidden by Lorentz invariance, using the data from 2016 to 2018 at the J-PARC KOTO experiment. With a single event sensitivity of (7.1±0.3stat±1.6syst)×10-8, no candidate event was observed in the signal region. The upper limit on the branching fraction was set to be 1.7×10-7 at the 90% confidence level.

Original language	English
Article number	051103
Journal	Physical Review D
Volume	102
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.102.051103
Publication status	Published - 2020 Sept

Bibliographical note

Publisher Copyright:
© 2020 authors. Published by the American Physical Society.

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevD.102.051103

Cite this

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title = "First search for KL →π0γ",

abstract = "We report the first search for the KL→π0γ decay, which is forbidden by Lorentz invariance, using the data from 2016 to 2018 at the J-PARC KOTO experiment. With a single event sensitivity of (7.1±0.3stat±1.6syst)×10-8, no candidate event was observed in the signal region. The upper limit on the branching fraction was set to be 1.7×10-7 at the 90\% confidence level.",

author = "\{(KOTO Collaboration)\} and N. Shimizu and Ahn, \{J. K.\} and B. Beckford and M. Campbell and Chen, \{S. H.\} and Choi, \{J. M.\} and J. Comfort and K. Dona and Farrington, \{M. S.\} and N. Hara and H. Haraguchi and Hsiung, \{Y. B.\} and M. Hutcheson and T. Inagaki and M. Isoe and I. Kamiji and Kim, \{E. J.\} and Kim, \{J. L.\} and Kim, \{H. M.\} and Komatsubara, \{T. K.\} and K. Kotera and Lee, \{J. W.\} and Lim, \{G. Y.\} and C. Lin and Lin, \{Q. S.\} and Y. Luo and T. Mari and T. Matsumura and D. McFarland and McNeal, \{N. A.\} and K. Miyazaki and R. Murayama and K. Nakagiri and H. Nanjo and H. Nishimiya and Y. Noichi and T. Nomura and T. Nunes and M. Ohsugi and H. Okuno and Redeker, \{J. C.\} and K. Sato and T. Sato and Y. Sato and T. Shimogawa and T. Shinkawa and S. Shinohara and K. Shiomi and R. Shiraishi and S. Su",

note = "Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society.",

year = "2020",

month = sep,

doi = "10.1103/PhysRevD.102.051103",

language = "English",

volume = "102",

journal = "Physical Review D",

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publisher = "American Physical Society",

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AU - (KOTO Collaboration)

AU - Shimizu, N.

AU - Ahn, J. K.

AU - Beckford, B.

AU - Campbell, M.

AU - Chen, S. H.

AU - Choi, J. M.

AU - Comfort, J.

AU - Dona, K.

AU - Farrington, M. S.

AU - Hara, N.

AU - Haraguchi, H.

AU - Hsiung, Y. B.

AU - Hutcheson, M.

AU - Inagaki, T.

AU - Isoe, M.

AU - Kamiji, I.

AU - Kim, E. J.

AU - Kim, J. L.

AU - Kim, H. M.

AU - Komatsubara, T. K.

AU - Kotera, K.

AU - Lee, J. W.

AU - Lim, G. Y.

AU - Lin, C.

AU - Lin, Q. S.

AU - Luo, Y.

AU - Mari, T.

AU - Matsumura, T.

AU - McFarland, D.

AU - McNeal, N. A.

AU - Miyazaki, K.

AU - Murayama, R.

AU - Nakagiri, K.

AU - Nanjo, H.

AU - Nishimiya, H.

AU - Noichi, Y.

AU - Nomura, T.

AU - Nunes, T.

AU - Ohsugi, M.

AU - Okuno, H.

AU - Redeker, J. C.

AU - Sato, K.

AU - Sato, T.

AU - Sato, Y.

AU - Shimogawa, T.

AU - Shinkawa, T.

AU - Shinohara, S.

AU - Shiomi, K.

AU - Shiraishi, R.

AU - Su, S.

PY - 2020/9

Y1 - 2020/9

N2 - We report the first search for the KL→π0γ decay, which is forbidden by Lorentz invariance, using the data from 2016 to 2018 at the J-PARC KOTO experiment. With a single event sensitivity of (7.1±0.3stat±1.6syst)×10-8, no candidate event was observed in the signal region. The upper limit on the branching fraction was set to be 1.7×10-7 at the 90% confidence level.

AB - We report the first search for the KL→π0γ decay, which is forbidden by Lorentz invariance, using the data from 2016 to 2018 at the J-PARC KOTO experiment. With a single event sensitivity of (7.1±0.3stat±1.6syst)×10-8, no candidate event was observed in the signal region. The upper limit on the branching fraction was set to be 1.7×10-7 at the 90% confidence level.

UR - https://www.scopus.com/pages/publications/85092743240

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DO - 10.1103/PhysRevD.102.051103

M3 - Article

AN - SCOPUS:85092743240

SN - 2470-0010

VL - 102

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 051103

ER -

First search for KL →π0γ

Abstract

Bibliographical note

ASJC Scopus subject areas

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