Search for electron neutrino appearance in a 250 km long-baseline experiment

M. H. Ahn; S. Aoki; Y. Ashie; H. Bhang; S. Boyd; D. Casper; J. H. Choi; S. Fukuda; Y. Fukuda; R. Gran; T. Hara; M. Hasegawa; T. Hasegawa; K. Hayashi; Y. Hayato; J. Hill; A. K. Ichikawa; A. Ikeda; T. Inagaki; T. Ishida; T. Ishii; M. Ishitsuka; Y. Itow; T. Iwashita; H. I. Jang; J. S. Jang; E. J. Jeon; K. K. Joo; C. K. Jung; T. Kajita; J. Kameda; K. Kaneyuki; I. Kato; E. Kearns; A. Kibayashi; D. Kielczewska; B. J. Kim; C. O. Kim; J. Y. Kim; S. B. Kim; K. Kobayashi; T. Kobayashi; Y. Koshio; W. R. Kropp; J. G. Learned; S. H. Lim; I. T. Lim; H. Maesaka; T. Maruyama; S. Matsuno; C. Mauger; C. Mcgrew; A. Minamino; S. Mine; M. Miura; K. Miyano; T. Morita; S. Moriyama; M. Nakahata; K. Nakamura; I. Nakano; F. Nakata; T. Nakaya; S. Nakayama; T. Namba; R. Nambu; K. Nishikawa; S. Nishiyama; S. Noda; Y. Obayashi; A. Okada; Y. Oyama; M. Y. Pac; H. Park; C. Saji; M. Sakuda; A. Sarrat; T. Sasaki; N. Sasao; K. Scholberg; M. Sekiguchi; E. Sharkey; M. Shiozawa; K. K. Shiraishi; M. Smy; H. W. Sobel; J. L. Stone; Y. Suga; L. R. Sulak; A. Suzuki; Y. Suzuki; Y. Takeuchi; N. Tamura; M. Tanaka; Y. Totsuka; S. Ueda; M. R. Vagins; C. W. Walter; W. Wang; R. J. Wilkes; S. Yamada; S. Yamamoto; C. Yanagisawa; H. Yokoyama; J. Yoo; M. Yoshida; J. Zalipska

doi:10.1103/PhysRevLett.93.051801

Search for electron neutrino appearance in a 250 km long-baseline experiment

M. H. Ahn
, S. Aoki
, Y. Ashie
, H. Bhang
, S. Boyd
, D. Casper
, J. H. Choi
, S. Fukuda
, Y. Fukuda
, R. Gran
, T. Hara
, M. Hasegawa
, T. Hasegawa
, K. Hayashi
, Y. Hayato
, J. Hill
, A. K. Ichikawa
, A. Ikeda
, T. Inagaki
, T. Ishida

T. Ishii, M. Ishitsuka, Y. Itow, T. Iwashita, H. I. Jang, J. S. Jang, E. J. Jeon, K. K. Joo, C. K. Jung, T. Kajita, J. Kameda, K. Kaneyuki, I. Kato, E. Kearns, A. Kibayashi, D. Kielczewska, B. J. Kim, C. O. Kim, J. Y. Kim, S. B. Kim, K. Kobayashi, T. Kobayashi, Y. Koshio, W. R. Kropp, J. G. Learned, S. H. Lim, I. T. Lim, H. Maesaka, T. Maruyama, S. Matsuno, C. Mauger, C. Mcgrew, A. Minamino, S. Mine, M. Miura, K. Miyano, T. Morita, S. Moriyama, M. Nakahata, K. Nakamura, I. Nakano, F. Nakata, T. Nakaya, S. Nakayama, T. Namba, R. Nambu, K. Nishikawa, S. Nishiyama, S. Noda, Y. Obayashi, A. Okada, Y. Oyama, M. Y. Pac, H. Park, C. Saji, M. Sakuda, A. Sarrat, T. Sasaki, N. Sasao, K. Scholberg, M. Sekiguchi, E. Sharkey, M. Shiozawa, K. K. Shiraishi, M. Smy, H. W. Sobel, J. L. Stone, Y. Suga, L. R. Sulak, A. Suzuki, Y. Suzuki, Y. Takeuchi, N. Tamura, M. Tanaka, Y. Totsuka, S. Ueda, M. R. Vagins, C. W. Walter, W. Wang, R. J. Wilkes, S. Yamada, S. Yamamoto, C. Yanagisawa, H. Yokoyama, J. Yoo, M. Yoshida, J. Zalipska

Physics and Astronomy

Seoul National University
Kobe University
The University of Tokyo
University of Washington
University of California at Irvine
Chonnam National University
Miyagi University of Education
Kyoto University
Tohoku University
High Energy Accelerator Research Organization, Tsukuba
Stony Brook University
Okayama University
Boston University
University of Hawai'i at Mānoa
University of Warsaw
Andrzej Soltan Institute for Nuclear Studies
Korea University
Niigata University
Dongshin University
Massachusetts Institute of Technology
Tokyo University of Science
The University of Osaka

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

62 Scopus citations

Abstract

The search for electron neutrino appearance from accelerator-produced muon neutrinos in the K2K 250 km long-baseline neutrino experiment was described. It was observed that one electron event was found in the data corresponding to an exposure of 4.8 × 10¹⁹ protons on target. The number of expected background neutrino events in the absence of neutrino oscillations was found to be 2.4±0.6 events and was found to be dominated by misidentification of events from neutral current production. The probability density function of the expected number of electron events was evaluated from the the Poisson distribution, which was convoluted with systematic uncertainty.

Original language	English
Article number	051801
Pages (from-to)	051801-1-051801-5
Journal	Physical Review Letters
Volume	93
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.93.051801
State	Published - Jul 30 2004

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10.1103/PhysRevLett.93.051801

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Ahn, M. H., Aoki, S., Ashie, Y., Bhang, H., Boyd, S., Casper, D., Choi, J. H., Fukuda, S., Fukuda, Y., Gran, R., Hara, T., Hasegawa, M., Hasegawa, T., Hayashi, K., Hayato, Y., Hill, J., Ichikawa, A. K., Ikeda, A., Inagaki, T., ... Zalipska, J. (2004). Search for electron neutrino appearance in a 250 km long-baseline experiment. Physical Review Letters, 93(5), 051801-1-051801-5. Article 051801. https://doi.org/10.1103/PhysRevLett.93.051801

@article{ab291609810844478a62dc6be133002c,

title = "Search for electron neutrino appearance in a 250 km long-baseline experiment",

abstract = "The search for electron neutrino appearance from accelerator-produced muon neutrinos in the K2K 250 km long-baseline neutrino experiment was described. It was observed that one electron event was found in the data corresponding to an exposure of 4.8 × 1019 protons on target. The number of expected background neutrino events in the absence of neutrino oscillations was found to be 2.4±0.6 events and was found to be dominated by misidentification of events from neutral current production. The probability density function of the expected number of electron events was evaluated from the the Poisson distribution, which was convoluted with systematic uncertainty.",

author = "Ahn, \{M. H.\} and S. Aoki and Y. Ashie and H. Bhang and S. Boyd and D. Casper and Choi, \{J. H.\} and S. Fukuda and Y. Fukuda and R. Gran and T. Hara and M. Hasegawa and T. Hasegawa and K. Hayashi and Y. Hayato and J. Hill and Ichikawa, \{A. K.\} and A. Ikeda and T. Inagaki and T. Ishida and T. Ishii and M. Ishitsuka and Y. Itow and T. Iwashita and Jang, \{H. I.\} and Jang, \{J. S.\} and Jeon, \{E. J.\} and Joo, \{K. K.\} and Jung, \{C. K.\} and T. Kajita and J. Kameda and K. Kaneyuki and I. Kato and E. Kearns and A. Kibayashi and D. Kielczewska and Kim, \{B. J.\} and Kim, \{C. O.\} and Kim, \{J. Y.\} and Kim, \{S. B.\} and K. Kobayashi and T. Kobayashi and Y. Koshio and Kropp, \{W. R.\} and Learned, \{J. G.\} and Lim, \{S. H.\} and Lim, \{I. T.\} and H. Maesaka and T. Maruyama and S. Matsuno and C. Mauger and C. Mcgrew and A. Minamino and S. Mine and M. Miura and K. Miyano and T. Morita and S. Moriyama and M. Nakahata and K. Nakamura and I. Nakano and F. Nakata and T. Nakaya and S. Nakayama and T. Namba and R. Nambu and K. Nishikawa and S. Nishiyama and S. Noda and Y. Obayashi and A. Okada and Y. Oyama and Pac, \{M. Y.\} and H. Park and C. Saji and M. Sakuda and A. Sarrat and T. Sasaki and N. Sasao and K. Scholberg and M. Sekiguchi and E. Sharkey and M. Shiozawa and Shiraishi, \{K. K.\} and M. Smy and Sobel, \{H. W.\} and Stone, \{J. L.\} and Y. Suga and Sulak, \{L. R.\} and A. Suzuki and Y. Suzuki and Y. Takeuchi and N. Tamura and M. Tanaka and Y. Totsuka and S. Ueda and Vagins, \{M. R.\} and Walter, \{C. W.\} and W. Wang and Wilkes, \{R. J.\} and S. Yamada and S. Yamamoto and C. Yanagisawa and H. Yokoyama and J. Yoo and M. Yoshida and J. Zalipska",

year = "2004",

month = jul,

day = "30",

doi = "10.1103/PhysRevLett.93.051801",

language = "English",

volume = "93",

pages = "051801--1--051801--5",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "5",

}

Ahn, MH, Aoki, S, Ashie, Y, Bhang, H, Boyd, S, Casper, D, Choi, JH, Fukuda, S, Fukuda, Y, Gran, R, Hara, T, Hasegawa, M, Hasegawa, T, Hayashi, K, Hayato, Y, Hill, J, Ichikawa, AK, Ikeda, A, Inagaki, T, Ishida, T, Ishii, T, Ishitsuka, M, Itow, Y, Iwashita, T, Jang, HI, Jang, JS, Jeon, EJ, Joo, KK, Jung, CK, Kajita, T, Kameda, J, Kaneyuki, K, Kato, I, Kearns, E, Kibayashi, A, Kielczewska, D, Kim, BJ, Kim, CO, Kim, JY, Kim, SB, Kobayashi, K, Kobayashi, T, Koshio, Y, Kropp, WR, Learned, JG, Lim, SH, Lim, IT, Maesaka, H, Maruyama, T, Matsuno, S, Mauger, C, Mcgrew, C, Minamino, A, Mine, S, Miura, M, Miyano, K, Morita, T, Moriyama, S, Nakahata, M, Nakamura, K, Nakano, I, Nakata, F, Nakaya, T, Nakayama, S, Namba, T, Nambu, R, Nishikawa, K, Nishiyama, S, Noda, S, Obayashi, Y, Okada, A, Oyama, Y, Pac, MY, Park, H, Saji, C, Sakuda, M, Sarrat, A, Sasaki, T, Sasao, N, Scholberg, K, Sekiguchi, M, Sharkey, E, Shiozawa, M, Shiraishi, KK, Smy, M, Sobel, HW, Stone, JL, Suga, Y, Sulak, LR, Suzuki, A, Suzuki, Y, Takeuchi, Y, Tamura, N, Tanaka, M, Totsuka, Y, Ueda, S, Vagins, MR, Walter, CW, Wang, W, Wilkes, RJ, Yamada, S, Yamamoto, S, Yanagisawa, C, Yokoyama, H, Yoo, J, Yoshida, M & Zalipska, J 2004, 'Search for electron neutrino appearance in a 250 km long-baseline experiment', Physical Review Letters, vol. 93, no. 5, 051801, pp. 051801-1-051801-5. https://doi.org/10.1103/PhysRevLett.93.051801

TY - JOUR

T1 - Search for electron neutrino appearance in a 250 km long-baseline experiment

AU - Ahn, M. H.

AU - Aoki, S.

AU - Ashie, Y.

AU - Bhang, H.

AU - Boyd, S.

AU - Casper, D.

AU - Choi, J. H.

AU - Fukuda, S.

AU - Fukuda, Y.

AU - Gran, R.

AU - Hara, T.

AU - Hasegawa, M.

AU - Hasegawa, T.

AU - Hayashi, K.

AU - Hayato, Y.

AU - Hill, J.

AU - Ichikawa, A. K.

AU - Ikeda, A.

AU - Inagaki, T.

AU - Ishida, T.

AU - Ishii, T.

AU - Ishitsuka, M.

AU - Itow, Y.

AU - Iwashita, T.

AU - Jang, H. I.

AU - Jang, J. S.

AU - Jeon, E. J.

AU - Joo, K. K.

AU - Jung, C. K.

AU - Kajita, T.

AU - Kameda, J.

AU - Kaneyuki, K.

AU - Kato, I.

AU - Kearns, E.

AU - Kibayashi, A.

AU - Kielczewska, D.

AU - Kim, B. J.

AU - Kim, C. O.

AU - Kim, J. Y.

AU - Kim, S. B.

AU - Kobayashi, K.

AU - Kobayashi, T.

AU - Koshio, Y.

AU - Kropp, W. R.

AU - Learned, J. G.

AU - Lim, S. H.

AU - Lim, I. T.

AU - Maesaka, H.

AU - Maruyama, T.

AU - Matsuno, S.

AU - Mauger, C.

AU - Mcgrew, C.

AU - Minamino, A.

AU - Mine, S.

AU - Miura, M.

AU - Miyano, K.

AU - Morita, T.

AU - Moriyama, S.

AU - Nakahata, M.

AU - Nakamura, K.

AU - Nakano, I.

AU - Nakata, F.

AU - Nakaya, T.

AU - Nakayama, S.

AU - Namba, T.

AU - Nambu, R.

AU - Nishikawa, K.

AU - Nishiyama, S.

AU - Noda, S.

AU - Obayashi, Y.

AU - Okada, A.

AU - Oyama, Y.

AU - Pac, M. Y.

AU - Park, H.

AU - Saji, C.

AU - Sakuda, M.

AU - Sarrat, A.

AU - Sasaki, T.

AU - Sasao, N.

AU - Scholberg, K.

AU - Sekiguchi, M.

AU - Sharkey, E.

AU - Shiozawa, M.

AU - Shiraishi, K. K.

AU - Smy, M.

AU - Sobel, H. W.

AU - Stone, J. L.

AU - Suga, Y.

AU - Sulak, L. R.

AU - Suzuki, A.

AU - Suzuki, Y.

AU - Takeuchi, Y.

AU - Tamura, N.

AU - Tanaka, M.

AU - Totsuka, Y.

AU - Ueda, S.

AU - Vagins, M. R.

AU - Walter, C. W.

AU - Wang, W.

AU - Wilkes, R. J.

AU - Yamada, S.

AU - Yamamoto, S.

AU - Yanagisawa, C.

AU - Yokoyama, H.

AU - Yoo, J.

AU - Yoshida, M.

AU - Zalipska, J.

PY - 2004/7/30

Y1 - 2004/7/30

N2 - The search for electron neutrino appearance from accelerator-produced muon neutrinos in the K2K 250 km long-baseline neutrino experiment was described. It was observed that one electron event was found in the data corresponding to an exposure of 4.8 × 1019 protons on target. The number of expected background neutrino events in the absence of neutrino oscillations was found to be 2.4±0.6 events and was found to be dominated by misidentification of events from neutral current production. The probability density function of the expected number of electron events was evaluated from the the Poisson distribution, which was convoluted with systematic uncertainty.

AB - The search for electron neutrino appearance from accelerator-produced muon neutrinos in the K2K 250 km long-baseline neutrino experiment was described. It was observed that one electron event was found in the data corresponding to an exposure of 4.8 × 1019 protons on target. The number of expected background neutrino events in the absence of neutrino oscillations was found to be 2.4±0.6 events and was found to be dominated by misidentification of events from neutral current production. The probability density function of the expected number of electron events was evaluated from the the Poisson distribution, which was convoluted with systematic uncertainty.

UR - https://www.scopus.com/pages/publications/69349106870

U2 - 10.1103/PhysRevLett.93.051801

DO - 10.1103/PhysRevLett.93.051801

M3 - Article

AN - SCOPUS:69349106870

SN - 0031-9007

VL - 93

SP - 051801-1-051801-5

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 051801

ER -

Search for electron neutrino appearance in a 250 km long-baseline experiment

Abstract

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