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

Publication ,  Journal Article
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; Smy, M ...
Published in: Physical review letters
July 2004

We present a search for electron neutrino appearance from accelerator-produced muon neutrinos in the K2K long-baseline neutrino experiment. One candidate event is found in the data corresponding to an exposure of 4.8 x 10(19) protons on target. The expected background in the absence of neutrino oscillations is estimated to be 2.4+/-0.6 events and is dominated by misidentification of events from neutral current pi(0) production. We exclude the nu(micro) to nu(e) oscillations at 90% C.L. for the effective mixing angle in the 2-flavor approximation of sin((2)2theta(microe)( approximately 1/2sin((2)2theta(13))>0.15 at Deltam(2)(microe)=2.8 x 10(-3) eV(2), the best-fit value of the nu(micro) disappearance analysis in K2K. The most stringent limit of sin((2)2theta(microe)<0.09 is obtained at Deltam(2)(microe)=6 x 10(-3) eV(2).

Duke Scholars

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

July 2004

Volume

93

Issue

5

Start / End Page

051801

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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MLA
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Ahn, M. H., Aoki, S., Ashie, Y., Bhang, H., Boyd, S., Casper, D., … K2K Collaboration, . (2004). Search for electron neutrino appearance in a 250 km long-baseline experiment. Physical Review Letters, 93(5), 051801. https://doi.org/10.1103/physrevlett.93.051801
Ahn, M. H., S. Aoki, Y. Ashie, H. Bhang, S. Boyd, D. Casper, J. H. Choi, et al. “Search for electron neutrino appearance in a 250 km long-baseline experiment.Physical Review Letters 93, no. 5 (July 2004): 051801. https://doi.org/10.1103/physrevlett.93.051801.
Ahn MH, Aoki S, Ashie Y, Bhang H, Boyd S, Casper D, et al. Search for electron neutrino appearance in a 250 km long-baseline experiment. Physical review letters. 2004 Jul;93(5):051801.
Ahn, M. H., et al. “Search for electron neutrino appearance in a 250 km long-baseline experiment.Physical Review Letters, vol. 93, no. 5, July 2004, p. 051801. Epmc, doi:10.1103/physrevlett.93.051801.
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, K2K Collaboration. Search for electron neutrino appearance in a 250 km long-baseline experiment. Physical review letters. 2004 Jul;93(5):051801.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

July 2004

Volume

93

Issue

5

Start / End Page

051801

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences