Study of the KL0→π0π0νν̄ decay

R. Ogata; S. Suzuki; J. K. Ahn; Y. Akune; V. Baranov; K. F. Chen; J. Comfort; M. Doroshenko; Y. Fujioka; Y. B. Hsiung; T. Inagaki; S. Ishibashi; N. Ishihara; H. Ishii; E. Iwai; T. Iwata; I. Kato; S. Kobayashi; S. Komatsu; T. K. Komatsubara; A. S. Kurilin; E. Kuzmin; A. Lednev; H. S. Lee; S. Y. Lee; G. Y. Lim; J. Ma; T. Matsumura; A. Moisseenko; H. Morii; T. Morimoto; Y. Nakajima; T. Nakano; H. Nanjo; N. Nishi; J. Nix; T. Nomura; M. Nomachi; H. Okuno; K. Omata; G. N. Perdue; S. Perov; S. Podolsky; S. Porokhovoy; K. Sakashita; T. Sasaki; N. Sasao; H. Sato; T. Sato; M. Sekimoto; T. Shimogawa; T. Shinkawa; Y. Stepanenko; Y. Sugaya; A. Sugiyama; T. Sumida; Y. Tajima; S. Takita; Z. Tsamalaidze; T. Tsukamoto; Y. C. Tung; Y. W. Wah; H. Watanabe; M. L. Wu; M. Yamaga; T. Yamanaka; H. Y. Yoshida; Y. Yoshimura; Y. Zheng

doi:10.1103/PhysRevD.84.052009

Study of the KL0→π0π0νν̄ decay

R. Ogata
, S. Suzuki
, J. K. Ahn
, Y. Akune
, V. Baranov
, K. F. Chen
, J. Comfort
, M. Doroshenko
, Y. Fujioka
, Y. B. Hsiung
, T. Inagaki
, S. Ishibashi
, N. Ishihara
, H. Ishii
, E. Iwai
, T. Iwata
, I. Kato
, S. Kobayashi
, S. Komatsu
, T. K. Komatsubara

A. S. Kurilin, E. Kuzmin, A. Lednev, H. S. Lee, S. Y. Lee, G. Y. Lim, J. Ma, T. Matsumura, A. Moisseenko, H. Morii, T. Morimoto, Y. Nakajima, T. Nakano, H. Nanjo, N. Nishi, J. Nix, T. Nomura, M. Nomachi, H. Okuno, K. Omata, G. N. Perdue, S. Perov, S. Podolsky, S. Porokhovoy, K. Sakashita, T. Sasaki, N. Sasao, H. Sato, T. Sato, M. Sekimoto, T. Shimogawa, T. Shinkawa, Y. Stepanenko, Y. Sugaya, A. Sugiyama, T. Sumida, Y. Tajima, S. Takita, Z. Tsamalaidze, T. Tsukamoto, Y. C. Tung, Y. W. Wah, H. Watanabe, M. L. Wu, M. Yamaga, T. Yamanaka, H. Y. Yoshida, Y. Yoshimura, Y. Zheng

研究成果 › 査読

17 被引用数 (Scopus)

抄録

The rare decay KL0→π0π0νν̄ was studied with the E391a detector at the KEK 12-GeV proton synchrotron. Based on 9.4×109 KL0 decays, an upper limit of 8.1×10^-7 was obtained for the branching fraction at 90% confidence level. We also set a limit on the KL0→π0π0X (X→invisible particles) process; the limit on the branching fraction varied from 7.0×10^-7 to 4.0×10 ^-5 for the mass of X ranging from 50MeV/c2 to 200MeV/c2.

本文言語	English
論文番号	052009
ジャーナル	Physical Review D - Particles, Fields, Gravitation and Cosmology
巻	84
号	5
DOI	https://doi.org/10.1103/PhysRevD.84.052009
出版ステータス	Published - 9月 21 2011
外部発表	はい

ASJC Scopus subject areas

核物理学および高エネルギー物理学
物理学および天文学（その他）

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10.1103/PhysRevD.84.052009

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Ogata, R., Suzuki, S., Ahn, J. K., Akune, Y., Baranov, V., Chen, K. F., Comfort, J., Doroshenko, M., Fujioka, Y., Hsiung, Y. B., Inagaki, T., Ishibashi, S., Ishihara, N., Ishii, H., Iwai, E., Iwata, T., Kato, I., Kobayashi, S., Komatsu, S., ... Zheng, Y. (2011). Study of the KL0→π0π0νν̄ decay. Physical Review D - Particles, Fields, Gravitation and Cosmology, 84(5), 記事 052009. https://doi.org/10.1103/PhysRevD.84.052009

Ogata, R, Suzuki, S, Ahn, JK, Akune, Y, Baranov, V, Chen, KF, Comfort, J, Doroshenko, M, Fujioka, Y, Hsiung, YB, Inagaki, T, Ishibashi, S, Ishihara, N, Ishii, H, Iwai, E, Iwata, T, Kato, I, Kobayashi, S, Komatsu, S, Komatsubara, TK, Kurilin, AS, Kuzmin, E, Lednev, A, Lee, HS, Lee, SY, Lim, GY, Ma, J, Matsumura, T, Moisseenko, A, Morii, H, Morimoto, T, Nakajima, Y, Nakano, T, Nanjo, H, Nishi, N, Nix, J, Nomura, T, Nomachi, M, Okuno, H, Omata, K, Perdue, GN, Perov, S, Podolsky, S, Porokhovoy, S, Sakashita, K, Sasaki, T, Sasao, N, Sato, H, Sato, T, Sekimoto, M, Shimogawa, T, Shinkawa, T, Stepanenko, Y, Sugaya, Y, Sugiyama, A, Sumida, T, Tajima, Y, Takita, S, Tsamalaidze, Z, Tsukamoto, T, Tung, YC, Wah, YW, Watanabe, H, Wu, ML, Yamaga, M, Yamanaka, T, Yoshida, HY, Yoshimura, Y & Zheng, Y 2011, 'Study of the KL0→π0π0νν̄ decay', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 84, no. 5, 052009. https://doi.org/10.1103/PhysRevD.84.052009

@article{56b0f94cfb874d1c8d777de18fee52bb,

title = "Study of the KL0→π0π0ν{\=ν} decay",

abstract = "The rare decay KL0→π0π0ν{\=ν} was studied with the E391a detector at the KEK 12-GeV proton synchrotron. Based on 9.4{\texttimes}109 KL0 decays, an upper limit of 8.1{\texttimes}10-7 was obtained for the branching fraction at 90\% confidence level. We also set a limit on the KL0→π0π0X (X→invisible particles) process; the limit on the branching fraction varied from 7.0{\texttimes}10-7 to 4.0{\texttimes}10 -5 for the mass of X ranging from 50MeV/c2 to 200MeV/c2.",

author = "R. Ogata and S. Suzuki and Ahn, \{J. K.\} and Y. Akune and V. Baranov and Chen, \{K. F.\} and J. Comfort and M. Doroshenko and Y. Fujioka and Hsiung, \{Y. B.\} and T. Inagaki and S. Ishibashi and N. Ishihara and H. Ishii and E. Iwai and T. Iwata and I. Kato and S. Kobayashi and S. Komatsu and Komatsubara, \{T. K.\} and Kurilin, \{A. S.\} and E. Kuzmin and A. Lednev and Lee, \{H. S.\} and Lee, \{S. Y.\} and Lim, \{G. Y.\} and J. Ma and T. Matsumura and A. Moisseenko and H. Morii and T. Morimoto and Y. Nakajima and T. Nakano and H. Nanjo and N. Nishi and J. Nix and T. Nomura and M. Nomachi and H. Okuno and K. Omata and Perdue, \{G. N.\} and S. Perov and S. Podolsky and S. Porokhovoy and K. Sakashita and T. Sasaki and N. Sasao and H. Sato and T. Sato and M. Sekimoto and T. Shimogawa and T. Shinkawa and Y. Stepanenko and Y. Sugaya and A. Sugiyama and T. Sumida and Y. Tajima and S. Takita and Z. Tsamalaidze and T. Tsukamoto and Tung, \{Y. C.\} and Wah, \{Y. W.\} and H. Watanabe and Wu, \{M. L.\} and M. Yamaga and T. Yamanaka and Yoshida, \{H. Y.\} and Y. Yoshimura and Y. Zheng",

year = "2011",

month = sep,

day = "21",

doi = "10.1103/PhysRevD.84.052009",

language = "English",

volume = "84",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

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T1 - Study of the KL0→π0π0νν̄ decay

AU - Ogata, R.

AU - Suzuki, S.

AU - Ahn, J. K.

AU - Akune, Y.

AU - Baranov, V.

AU - Chen, K. F.

AU - Comfort, J.

AU - Doroshenko, M.

AU - Fujioka, Y.

AU - Hsiung, Y. B.

AU - Inagaki, T.

AU - Ishibashi, S.

AU - Ishihara, N.

AU - Ishii, H.

AU - Iwai, E.

AU - Iwata, T.

AU - Kato, I.

AU - Kobayashi, S.

AU - Komatsu, S.

AU - Komatsubara, T. K.

AU - Kurilin, A. S.

AU - Kuzmin, E.

AU - Lednev, A.

AU - Lee, H. S.

AU - Lee, S. Y.

AU - Lim, G. Y.

AU - Ma, J.

AU - Matsumura, T.

AU - Moisseenko, A.

AU - Morii, H.

AU - Morimoto, T.

AU - Nakajima, Y.

AU - Nakano, T.

AU - Nanjo, H.

AU - Nishi, N.

AU - Nix, J.

AU - Nomura, T.

AU - Nomachi, M.

AU - Okuno, H.

AU - Omata, K.

AU - Perdue, G. N.

AU - Perov, S.

AU - Podolsky, S.

AU - Porokhovoy, S.

AU - Sakashita, K.

AU - Sasaki, T.

AU - Sasao, N.

AU - Sato, H.

AU - Sato, T.

AU - Sekimoto, M.

AU - Shimogawa, T.

AU - Shinkawa, T.

AU - Stepanenko, Y.

AU - Sugaya, Y.

AU - Sugiyama, A.

AU - Sumida, T.

AU - Tajima, Y.

AU - Takita, S.

AU - Tsamalaidze, Z.

AU - Tsukamoto, T.

AU - Tung, Y. C.

AU - Wah, Y. W.

AU - Watanabe, H.

AU - Wu, M. L.

AU - Yamaga, M.

AU - Yamanaka, T.

AU - Yoshida, H. Y.

AU - Yoshimura, Y.

AU - Zheng, Y.

PY - 2011/9/21

Y1 - 2011/9/21

N2 - The rare decay KL0→π0π0νν̄ was studied with the E391a detector at the KEK 12-GeV proton synchrotron. Based on 9.4×109 KL0 decays, an upper limit of 8.1×10-7 was obtained for the branching fraction at 90% confidence level. We also set a limit on the KL0→π0π0X (X→invisible particles) process; the limit on the branching fraction varied from 7.0×10-7 to 4.0×10 -5 for the mass of X ranging from 50MeV/c2 to 200MeV/c2.

AB - The rare decay KL0→π0π0νν̄ was studied with the E391a detector at the KEK 12-GeV proton synchrotron. Based on 9.4×109 KL0 decays, an upper limit of 8.1×10-7 was obtained for the branching fraction at 90% confidence level. We also set a limit on the KL0→π0π0X (X→invisible particles) process; the limit on the branching fraction varied from 7.0×10-7 to 4.0×10 -5 for the mass of X ranging from 50MeV/c2 to 200MeV/c2.

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UR - https://www.scopus.com/pages/publications/80053461707#tab=citedBy

U2 - 10.1103/PhysRevD.84.052009

DO - 10.1103/PhysRevD.84.052009

M3 - Article

AN - SCOPUS:80053461707

SN - 1550-7998

VL - 84

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 5

M1 - 052009

ER -

Study of the KL0→π0π0νν̄ decay

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