Detection of accelerator-produced neutrinos at a distance of 250 km

S. H. Ahn; S. An; S. Aoki; H. G. Berns; H. C. Bhang; S. Boyd; D. Casper; T. Chikamatsu; J. H. Choi; S. Echigo; M. Etoh; K. Fujii; S. Fukuda; Y. Fukuda; W. Gajewski; U. Golebiewska; T. Hara; T. Hasegawa; Y. Hayato; J. Hill; S. J. Hong; M. Ieiri; T. Inada; T. Inagaki; T. Ishida; H. Ishii; T. Ishii; H. Ishino; M. Ishitsuka; Y. Itow; T. Iwashita; H. I. Jang; J. S. Jang; E. J. Jeon; E. M. Jeong; C. K. Jung; T. Kadowaki; T. Kajita; J. Kameda; K. Kaneyuki; I. Kato; Y. Kato; E. Kearns; S. Kenmochi; B. H. Khang; A. Kibayashi; D. Kielczewska; B. J. Kim; C. O. Kim; H. I. Kim; J. H. Kim; J. Y. Kim; S. B. Kim; S. Kishi; M. Kitamura; K. Kobayashi; T. Kobayashi; Y. Kobayashi; M. Kohama; D. G. Koo; Y. Koshio; W. Kropp; G. Kume; E. Kusano; J. G. Learned; H. K. Lee; J. W. Lee; S. B. Lee; I. T. Lim; S. H. Lim; H. Maesaka; K. Martens; T. Maruyama; S. Matsuno; C. Mauger; C. McGrew; M. Minakawa; S. Mine; M. Miura; S. Miyamoto; K. Miyano; S. Moriyama; S. Mukai; M. Nakahata; K. Nakamura; M. Nakamura; I. Nakano; T. Nakaya; S. Nakayama; K. Nakayoshi; K. Nishijima; K. Nishikawa; S. Nishiyama; S. Noda; H. Noumi; Y. Obayashi; J. K. Oh; A. Okada; M. Onchi; T. Otaki; Y. Oyama; M. Y. Pac; H. Park; S. H. Park; S. K. Park; A. Sakai; M. Sakuda; N. Sakurai; N. Sasao; K. Sato; K. Scholberg; E. Seo; E. Sharkey; K. Shiino; A. Shima; M. Shiozawa; H. So; H. Sobel; A. Stachyra; J. L. Stone; L. R. Sulak; A. Suzuki; Y. Suzuki; M. Takasaki; M. Takatsuki; K. Takenaka; H. Takeuchi; Y. Takeuchi; N. Tamura; K. H. Tanaka; Y. Tanaka; K. Tashiro; K. Tauchi; T. Toshito; Y. Totsuka; V. Tumakov; T. Umeda; M. Vagins; C. W. Walter; R. J. Wilkes; S. Yamada; T. Yamaguchi; Y. Yamanoi; C. Yanagisawa; H. Yokoyama; J. Yoo; M. Yoshida; S. Y. You

doi:10.1016/S0370-2693(01)00647-5

Detection of accelerator-produced neutrinos at a distance of 250 km

S. H. Ahn, S. An, S. Aoki, H. G. Berns, H. C. Bhang, S. Boyd, D. Casper, T. Chikamatsu, J. H. Choi, S. Echigo, M. Etoh, K. Fujii, S. Fukuda, Y. Fukuda, W. Gajewski, U. Golebiewska, T. Hara, T. Hasegawa, Y. Hayato, J. HillS. J. Hong, M. Ieiri, T. Inada, T. Inagaki, T. Ishida, H. Ishii, T. Ishii, H. Ishino, M. Ishitsuka, Y. Itow, T. Iwashita, H. I. Jang, J. S. Jang, E. J. Jeon, E. M. Jeong, C. K. Jung, T. Kadowaki, T. Kajita, J. Kameda, K. Kaneyuki, I. Kato, Y. Kato, E. Kearns, S. Kenmochi, B. H. Khang, A. Kibayashi, D. Kielczewska, B. J. Kim, C. O. Kim, H. I. Kim, J. H. Kim, J. Y. Kim, S. B. Kim, S. Kishi, M. Kitamura, K. Kobayashi, T. Kobayashi, Y. Kobayashi, M. Kohama, D. G. Koo, Y. Koshio, W. Kropp, G. Kume, E. Kusano, J. G. Learned, H. K. Lee, J. W. Lee, S. B. Lee, I. T. Lim, S. H. Lim, H. Maesaka, K. Martens, T. Maruyama, S. Matsuno, C. Mauger, C. McGrew, M. Minakawa, S. Mine, M. Miura, S. Miyamoto, K. Miyano, S. Moriyama, S. Mukai, M. Nakahata, K. Nakamura, M. Nakamura, I. Nakano, T. Nakaya, S. Nakayama, K. Nakayoshi, K. Nishijima, K. Nishikawa, S. Nishiyama, S. Noda, H. Noumi, Y. Obayashi, J. K. Oh, A. Okada, M. Onchi, T. Otaki, Y. Oyama, M. Y. Pac, H. Park, S. H. Park, S. K. Park, A. Sakai, M. Sakuda, N. Sakurai, N. Sasao, K. Sato, K. Scholberg, E. Seo, E. Sharkey, K. Shiino, A. Shima, M. Shiozawa, H. So, H. Sobel, A. Stachyra, J. L. Stone, L. R. Sulak, A. Suzuki, Y. Suzuki, M. Takasaki, M. Takatsuki, K. Takenaka, H. Takeuchi, Y. Takeuchi, N. Tamura, K. H. Tanaka, Y. Tanaka, K. Tashiro, K. Tauchi, T. Toshito, Y. Totsuka, V. Tumakov, T. Umeda, M. Vagins, C. W. Walter, R. J. Wilkes, S. Yamada, T. Yamaguchi, Y. Yamanoi, C. Yanagisawa, H. Yokoyama, J. Yoo, M. Yoshida, S. Y. You

Department of Physics

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

235 Citations (Scopus)

Abstract

The KEK to Kamioka long-baseline neutrino experiment (K2K) has begun its investigation of neutrino oscillations suggested by atmospheric neutrino observations. Twenty-eight neutrino events have been detected in coincidence with the expected arrival time of the beam in the 22.5 kt fiducial volume of Super-Kamiokande, the far detector at 250 km distance. The expectation is 37.8_-3.8 ^+3.5, derived using measurements of neutrino interactions in a near detector and extrapolation using a beam simulation validated by a measurement of pion kinematics after production and focusing. The background is of order 10^-3 events.

Original language	English
Pages (from-to)	178-184
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	511
Issue number	2-4
DOIs	https://doi.org/10.1016/S0370-2693(01)00647-5
Publication status	Published - 2001 Jul 5

Bibliographical note

Funding Information:
We thank the KEK and ICRR Directorates for their strong support and encouragement. K2K is made possible by the inventiveness and the diligent efforts of the KEK–PS machine group. We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. This work has been supported by the Ministry of Education, Culture, Sports, Science and Technology, Government of Japan and its grants for Scientific Research, the Japan Society for Promotion of Science, the U.S. Department of Energy, the Korea Research Foundation, and the Korea Science and Engineering Foundation.

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(01)00647-5

Cite this

Ahn, S. H., An, S., Aoki, S., Berns, H. G., Bhang, H. C., Boyd, S., Casper, D., Chikamatsu, T., Choi, J. H., Echigo, S., Etoh, M., Fujii, K., Fukuda, S., Fukuda, Y., Gajewski, W., Golebiewska, U., Hara, T., Hasegawa, T., Hayato, Y., ... You, S. Y. (2001). Detection of accelerator-produced neutrinos at a distance of 250 km. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 511(2-4), 178-184. https://doi.org/10.1016/S0370-2693(01)00647-5

Ahn, SH, An, S, Aoki, S, Berns, HG, Bhang, HC, Boyd, S, Casper, D, Chikamatsu, T, Choi, JH, Echigo, S, Etoh, M, Fujii, K, Fukuda, S, Fukuda, Y, Gajewski, W, Golebiewska, U, Hara, T, Hasegawa, T, Hayato, Y, Hill, J, Hong, SJ, Ieiri, M, Inada, T, Inagaki, T, Ishida, T, Ishii, H, Ishii, T, Ishino, H, Ishitsuka, M, Itow, Y, Iwashita, T, Jang, HI, Jang, JS, Jeon, EJ, Jeong, EM, Jung, CK, Kadowaki, T, Kajita, T, Kameda, J, Kaneyuki, K, Kato, I, Kato, Y, Kearns, E, Kenmochi, S, Khang, BH, Kibayashi, A, Kielczewska, D, Kim, BJ, Kim, CO, Kim, HI, Kim, JH, Kim, JY, Kim, SB, Kishi, S, Kitamura, M, Kobayashi, K, Kobayashi, T, Kobayashi, Y, Kohama, M, Koo, DG, Koshio, Y, Kropp, W, Kume, G, Kusano, E, Learned, JG, Lee, HK, Lee, JW, Lee, SB, Lim, IT, Lim, SH, Maesaka, H, Martens, K, Maruyama, T, Matsuno, S, Mauger, C, McGrew, C, Minakawa, M, Mine, S, Miura, M, Miyamoto, S, Miyano, K, Moriyama, S, Mukai, S, Nakahata, M, Nakamura, K, Nakamura, M, Nakano, I, Nakaya, T, Nakayama, S, Nakayoshi, K, Nishijima, K, Nishikawa, K, Nishiyama, S, Noda, S, Noumi, H, Obayashi, Y, Oh, JK, Okada, A, Onchi, M, Otaki, T, Oyama, Y, Pac, MY, Park, H, Park, SH, Park, SK, Sakai, A, Sakuda, M, Sakurai, N, Sasao, N, Sato, K, Scholberg, K, Seo, E, Sharkey, E, Shiino, K, Shima, A, Shiozawa, M, So, H, Sobel, H, Stachyra, A, Stone, JL, Sulak, LR, Suzuki, A, Suzuki, Y, Takasaki, M, Takatsuki, M, Takenaka, K, Takeuchi, H, Takeuchi, Y, Tamura, N, Tanaka, KH, Tanaka, Y, Tashiro, K, Tauchi, K, Toshito, T, Totsuka, Y, Tumakov, V, Umeda, T, Vagins, M, Walter, CW, Wilkes, RJ, Yamada, S, Yamaguchi, T, Yamanoi, Y, Yanagisawa, C, Yokoyama, H, Yoo, J, Yoshida, M & You, SY 2001, 'Detection of accelerator-produced neutrinos at a distance of 250 km', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 511, no. 2-4, pp. 178-184. https://doi.org/10.1016/S0370-2693(01)00647-5

@article{f484fd810e804a3c8b29f7c12789a514,

title = "Detection of accelerator-produced neutrinos at a distance of 250 km",

abstract = "The KEK to Kamioka long-baseline neutrino experiment (K2K) has begun its investigation of neutrino oscillations suggested by atmospheric neutrino observations. Twenty-eight neutrino events have been detected in coincidence with the expected arrival time of the beam in the 22.5 kt fiducial volume of Super-Kamiokande, the far detector at 250 km distance. The expectation is 37.8-3.8 +3.5, derived using measurements of neutrino interactions in a near detector and extrapolation using a beam simulation validated by a measurement of pion kinematics after production and focusing. The background is of order 10-3 events.",

author = "Ahn, {S. H.} and S. An and S. Aoki and Berns, {H. G.} and Bhang, {H. C.} and S. Boyd and D. Casper and T. Chikamatsu and Choi, {J. H.} and S. Echigo and M. Etoh and K. Fujii and S. Fukuda and Y. Fukuda and W. Gajewski and U. Golebiewska and T. Hara and T. Hasegawa and Y. Hayato and J. Hill and Hong, {S. J.} and M. Ieiri and T. Inada and T. Inagaki and T. Ishida and H. Ishii and T. Ishii and H. Ishino and M. Ishitsuka and Y. Itow and T. Iwashita and Jang, {H. I.} and Jang, {J. S.} and Jeon, {E. J.} and Jeong, {E. M.} and Jung, {C. K.} and T. Kadowaki and T. Kajita and J. Kameda and K. Kaneyuki and I. Kato and Y. Kato and E. Kearns and S. Kenmochi and Khang, {B. H.} and A. Kibayashi and D. Kielczewska and Kim, {B. J.} and Kim, {C. O.} and Kim, {H. I.} and Kim, {J. H.} and Kim, {J. Y.} and Kim, {S. B.} and S. Kishi and M. Kitamura and K. Kobayashi and T. Kobayashi and Y. Kobayashi and M. Kohama and Koo, {D. G.} and Y. Koshio and W. Kropp and G. Kume and E. Kusano and Learned, {J. G.} and Lee, {H. K.} and Lee, {J. W.} and Lee, {S. B.} and Lim, {I. T.} and Lim, {S. H.} and H. Maesaka and K. Martens and T. Maruyama and S. Matsuno and C. Mauger and C. McGrew and M. Minakawa and S. Mine and M. Miura and S. Miyamoto and K. Miyano and S. Moriyama and S. Mukai and M. Nakahata and K. Nakamura and M. Nakamura and I. Nakano and T. Nakaya and S. Nakayama and K. Nakayoshi and K. Nishijima and K. Nishikawa and S. Nishiyama and S. Noda and H. Noumi and Y. Obayashi and Oh, {J. K.} and A. Okada and M. Onchi and T. Otaki and Y. Oyama and Pac, {M. Y.} and H. Park and Park, {S. H.} and Park, {S. K.} and A. Sakai and M. Sakuda and N. Sakurai and N. Sasao and K. Sato and K. Scholberg and E. Seo and E. Sharkey and K. Shiino and A. Shima and M. Shiozawa and H. So and H. Sobel and A. Stachyra and Stone, {J. L.} and Sulak, {L. R.} and A. Suzuki and Y. Suzuki and M. Takasaki and M. Takatsuki and K. Takenaka and H. Takeuchi and Y. Takeuchi and N. Tamura and Tanaka, {K. H.} and Y. Tanaka and K. Tashiro and K. Tauchi and T. Toshito and Y. Totsuka and V. Tumakov and T. Umeda and M. Vagins and Walter, {C. W.} and Wilkes, {R. J.} and S. Yamada and T. Yamaguchi and Y. Yamanoi and C. Yanagisawa and H. Yokoyama and J. Yoo and M. Yoshida and You, {S. Y.}",

note = "Funding Information: We thank the KEK and ICRR Directorates for their strong support and encouragement. K2K is made possible by the inventiveness and the diligent efforts of the KEK–PS machine group. We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. This work has been supported by the Ministry of Education, Culture, Sports, Science and Technology, Government of Japan and its grants for Scientific Research, the Japan Society for Promotion of Science, the U.S. Department of Energy, the Korea Research Foundation, and the Korea Science and Engineering Foundation.",

year = "2001",

month = jul,

day = "5",

doi = "10.1016/S0370-2693(01)00647-5",

language = "English",

volume = "511",

pages = "178--184",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "2-4",

}

TY - JOUR

T1 - Detection of accelerator-produced neutrinos at a distance of 250 km

AU - Ahn, S. H.

AU - An, S.

AU - Aoki, S.

AU - Berns, H. G.

AU - Bhang, H. C.

AU - Boyd, S.

AU - Casper, D.

AU - Chikamatsu, T.

AU - Choi, J. H.

AU - Echigo, S.

AU - Etoh, M.

AU - Fujii, K.

AU - Fukuda, S.

AU - Fukuda, Y.

AU - Gajewski, W.

AU - Golebiewska, U.

AU - Hara, T.

AU - Hasegawa, T.

AU - Hayato, Y.

AU - Hill, J.

AU - Hong, S. J.

AU - Ieiri, M.

AU - Inada, T.

AU - Inagaki, T.

AU - Ishida, T.

AU - Ishii, H.

AU - Ishii, T.

AU - Ishino, H.

AU - Ishitsuka, M.

AU - Itow, Y.

AU - Iwashita, T.

AU - Jang, H. I.

AU - Jang, J. S.

AU - Jeon, E. J.

AU - Jeong, E. M.

AU - Jung, C. K.

AU - Kadowaki, T.

AU - Kajita, T.

AU - Kameda, J.

AU - Kaneyuki, K.

AU - Kato, I.

AU - Kato, Y.

AU - Kearns, E.

AU - Kenmochi, S.

AU - Khang, B. H.

AU - Kibayashi, A.

AU - Kielczewska, D.

AU - Kim, B. J.

AU - Kim, C. O.

AU - Kim, H. I.

AU - Kim, J. H.

AU - Kim, J. Y.

AU - Kim, S. B.

AU - Kishi, S.

AU - Kitamura, M.

AU - Kobayashi, K.

AU - Kobayashi, T.

AU - Kobayashi, Y.

AU - Kohama, M.

AU - Koo, D. G.

AU - Koshio, Y.

AU - Kropp, W.

AU - Kume, G.

AU - Kusano, E.

AU - Learned, J. G.

AU - Lee, H. K.

AU - Lee, J. W.

AU - Lee, S. B.

AU - Lim, I. T.

AU - Lim, S. H.

AU - Maesaka, H.

AU - Martens, K.

AU - Maruyama, T.

AU - Matsuno, S.

AU - Mauger, C.

AU - McGrew, C.

AU - Minakawa, M.

AU - Mine, S.

AU - Miura, M.

AU - Miyamoto, S.

AU - Miyano, K.

AU - Moriyama, S.

AU - Mukai, S.

AU - Nakahata, M.

AU - Nakamura, K.

AU - Nakamura, M.

AU - Nakano, I.

AU - Nakaya, T.

AU - Nakayama, S.

AU - Nakayoshi, K.

AU - Nishijima, K.

AU - Nishikawa, K.

AU - Nishiyama, S.

AU - Noda, S.

AU - Noumi, H.

AU - Obayashi, Y.

AU - Oh, J. K.

AU - Okada, A.

AU - Onchi, M.

AU - Otaki, T.

AU - Oyama, Y.

AU - Pac, M. Y.

AU - Park, H.

AU - Park, S. H.

AU - Park, S. K.

AU - Sakai, A.

AU - Sakuda, M.

AU - Sakurai, N.

AU - Sasao, N.

AU - Sato, K.

AU - Scholberg, K.

AU - Seo, E.

AU - Sharkey, E.

AU - Shiino, K.

AU - Shima, A.

AU - Shiozawa, M.

AU - So, H.

AU - Sobel, H.

AU - Stachyra, A.

AU - Stone, J. L.

AU - Sulak, L. R.

AU - Suzuki, A.

AU - Suzuki, Y.

AU - Takasaki, M.

AU - Takatsuki, M.

AU - Takenaka, K.

AU - Takeuchi, H.

AU - Takeuchi, Y.

AU - Tamura, N.

AU - Tanaka, K. H.

AU - Tanaka, Y.

AU - Tashiro, K.

AU - Tauchi, K.

AU - Toshito, T.

AU - Totsuka, Y.

AU - Tumakov, V.

AU - Umeda, T.

AU - Vagins, M.

AU - Walter, C. W.

AU - Wilkes, R. J.

AU - Yamada, S.

AU - Yamaguchi, T.

AU - Yamanoi, Y.

AU - Yanagisawa, C.

AU - Yokoyama, H.

AU - Yoo, J.

AU - Yoshida, M.

AU - You, S. Y.

N1 - Funding Information: We thank the KEK and ICRR Directorates for their strong support and encouragement. K2K is made possible by the inventiveness and the diligent efforts of the KEK–PS machine group. We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. This work has been supported by the Ministry of Education, Culture, Sports, Science and Technology, Government of Japan and its grants for Scientific Research, the Japan Society for Promotion of Science, the U.S. Department of Energy, the Korea Research Foundation, and the Korea Science and Engineering Foundation.

PY - 2001/7/5

Y1 - 2001/7/5

N2 - The KEK to Kamioka long-baseline neutrino experiment (K2K) has begun its investigation of neutrino oscillations suggested by atmospheric neutrino observations. Twenty-eight neutrino events have been detected in coincidence with the expected arrival time of the beam in the 22.5 kt fiducial volume of Super-Kamiokande, the far detector at 250 km distance. The expectation is 37.8-3.8 +3.5, derived using measurements of neutrino interactions in a near detector and extrapolation using a beam simulation validated by a measurement of pion kinematics after production and focusing. The background is of order 10-3 events.

AB - The KEK to Kamioka long-baseline neutrino experiment (K2K) has begun its investigation of neutrino oscillations suggested by atmospheric neutrino observations. Twenty-eight neutrino events have been detected in coincidence with the expected arrival time of the beam in the 22.5 kt fiducial volume of Super-Kamiokande, the far detector at 250 km distance. The expectation is 37.8-3.8 +3.5, derived using measurements of neutrino interactions in a near detector and extrapolation using a beam simulation validated by a measurement of pion kinematics after production and focusing. The background is of order 10-3 events.

UR - http://www.scopus.com/inward/record.url?scp=0035811849&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(01)00647-5

DO - 10.1016/S0370-2693(01)00647-5

M3 - Article

AN - SCOPUS:0035811849

SN - 0370-2693

VL - 511

SP - 178

EP - 184

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 2-4

ER -

Detection of accelerator-produced neutrinos at a distance of 250 km

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