An upper limit on cosmic-ray p̄/p flux ratio estimated by the Moon's shadow with the Tibet III air shower array

M. Amenomori, S. Ayabe, D. Chen, W. Cui, Danzengluobu, L. K. Ding, X. H. Ding, C. F. Feng, Z. Y. Feng, X. Y. Gao, Q. X. Geng, H. W. Guo, H. H. He, M. He, I. Ohta, N. Hotta, Haibing Hu, H. B. Hu, J. Huang, Q. HuangH. Y. Jia, F. Kajino, T. Saito, Y. Katayose, C. Kato, K. Kasahara, Labaciren, G. M. Le, J. Y. Li, H. Lu, S. L. Lu, X. R. Meng, K. Mizutani, J. Mu, K. Munakata, A. Nagai, H. Nanjo, M. Nishizawa, M. Ohnishi, H. Onuma, T. Ouchi, Shunsuke Ozawa, J. R. Ren, K. Kawata, Zhaxisangzhu, T. Sasaki, M. Shibata, A. Shiomi, T. Shirai, H. Sugimoto, H. M. Zhang, N. Tateyama, Shoji Torii, H. Tsuchiya, H. Wang, X. Wang, Y. G. Wang, H. R. Wu, L. Xue, M. Takita, Y. Yamamoto, C. T. Yan, X. C. Yang, S. Yasue, Z. H. Ye, G. C. Yu, S. Udo, T. Yuda, J. L. Zhang, N. J. Zhang, X. Y. Zhang, Y. Zhang, Yi Zhang, M. Sakata, A. F. Yuan, Y. H. Tan, K. Hibino, X. X. Zhou

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The Tibet air shower array has been in operation since 1999 as Tibet III (22,050m2) with energy threshold of a few TeV. As primary cosmic rays are shielded by the Moon having the finite size of 0.5 degree in diameter, we observe a deficit in cosmic rays called the Moon's shadow with sufficient statistical significance. The center of the Moon's shadow shifts westwardly due to the geomagnetic field. By analyzing this energy-dependent westward displacement carefully, we set an upper limit of about 5% at 90% confidence level on the cosmic-ray antiproton/proton ratio at multi-TeV energies.

    Original languageEnglish
    Title of host publication29th International Cosmic Ray Conference, ICRC 2005
    PublisherTata Institute of Fundamental Research
    Pages45-48
    Number of pages4
    Volume6
    Publication statusPublished - 2005
    Event29th International Cosmic Ray Conference, ICRC 2005 - Pune
    Duration: 2005 Aug 32005 Aug 10

    Other

    Other29th International Cosmic Ray Conference, ICRC 2005
    CityPune
    Period05/8/305/8/10

    Fingerprint

    Tibet
    cosmic ray showers
    moon
    cosmic rays
    primary cosmic rays
    antiprotons
    geomagnetism
    energy
    confidence
    thresholds
    protons
    shift

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Amenomori, M., Ayabe, S., Chen, D., Cui, W., Danzengluobu, Ding, L. K., ... Zhou, X. X. (2005). An upper limit on cosmic-ray p̄/p flux ratio estimated by the Moon's shadow with the Tibet III air shower array. In 29th International Cosmic Ray Conference, ICRC 2005 (Vol. 6, pp. 45-48). Tata Institute of Fundamental Research.

    An upper limit on cosmic-ray p̄/p flux ratio estimated by the Moon's shadow with the Tibet III air shower array. / Amenomori, M.; Ayabe, S.; Chen, D.; Cui, W.; Danzengluobu; Ding, L. K.; Ding, X. H.; Feng, C. F.; Feng, Z. Y.; Gao, X. Y.; Geng, Q. X.; Guo, H. W.; He, H. H.; He, M.; Ohta, I.; Hotta, N.; Hu, Haibing; Hu, H. B.; Huang, J.; Huang, Q.; Jia, H. Y.; Kajino, F.; Saito, T.; Katayose, Y.; Kato, C.; Kasahara, K.; Labaciren; Le, G. M.; Li, J. Y.; Lu, H.; Lu, S. L.; Meng, X. R.; Mizutani, K.; Mu, J.; Munakata, K.; Nagai, A.; Nanjo, H.; Nishizawa, M.; Ohnishi, M.; Onuma, H.; Ouchi, T.; Ozawa, Shunsuke; Ren, J. R.; Kawata, K.; Zhaxisangzhu; Sasaki, T.; Shibata, M.; Shiomi, A.; Shirai, T.; Sugimoto, H.; Zhang, H. M.; Tateyama, N.; Torii, Shoji; Tsuchiya, H.; Wang, H.; Wang, X.; Wang, Y. G.; Wu, H. R.; Xue, L.; Takita, M.; Yamamoto, Y.; Yan, C. T.; Yang, X. C.; Yasue, S.; Ye, Z. H.; Yu, G. C.; Udo, S.; Yuda, T.; Zhang, J. L.; Zhang, N. J.; Zhang, X. Y.; Zhang, Y.; Zhang, Yi; Sakata, M.; Yuan, A. F.; Tan, Y. H.; Hibino, K.; Zhou, X. X.

    29th International Cosmic Ray Conference, ICRC 2005. Vol. 6 Tata Institute of Fundamental Research, 2005. p. 45-48.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Amenomori, M, Ayabe, S, Chen, D, Cui, W, Danzengluobu, Ding, LK, Ding, XH, Feng, CF, Feng, ZY, Gao, XY, Geng, QX, Guo, HW, He, HH, He, M, Ohta, I, Hotta, N, Hu, H, Hu, HB, Huang, J, Huang, Q, Jia, HY, Kajino, F, Saito, T, Katayose, Y, Kato, C, Kasahara, K, Labaciren, Le, GM, Li, JY, Lu, H, Lu, SL, Meng, XR, Mizutani, K, Mu, J, Munakata, K, Nagai, A, Nanjo, H, Nishizawa, M, Ohnishi, M, Onuma, H, Ouchi, T, Ozawa, S, Ren, JR, Kawata, K, Zhaxisangzhu, Sasaki, T, Shibata, M, Shiomi, A, Shirai, T, Sugimoto, H, Zhang, HM, Tateyama, N, Torii, S, Tsuchiya, H, Wang, H, Wang, X, Wang, YG, Wu, HR, Xue, L, Takita, M, Yamamoto, Y, Yan, CT, Yang, XC, Yasue, S, Ye, ZH, Yu, GC, Udo, S, Yuda, T, Zhang, JL, Zhang, NJ, Zhang, XY, Zhang, Y, Zhang, Y, Sakata, M, Yuan, AF, Tan, YH, Hibino, K & Zhou, XX 2005, An upper limit on cosmic-ray p̄/p flux ratio estimated by the Moon's shadow with the Tibet III air shower array. in 29th International Cosmic Ray Conference, ICRC 2005. vol. 6, Tata Institute of Fundamental Research, pp. 45-48, 29th International Cosmic Ray Conference, ICRC 2005, Pune, 05/8/3.
    Amenomori M, Ayabe S, Chen D, Cui W, Danzengluobu, Ding LK et al. An upper limit on cosmic-ray p̄/p flux ratio estimated by the Moon's shadow with the Tibet III air shower array. In 29th International Cosmic Ray Conference, ICRC 2005. Vol. 6. Tata Institute of Fundamental Research. 2005. p. 45-48
    Amenomori, M. ; Ayabe, S. ; Chen, D. ; Cui, W. ; Danzengluobu ; Ding, L. K. ; Ding, X. H. ; Feng, C. F. ; Feng, Z. Y. ; Gao, X. Y. ; Geng, Q. X. ; Guo, H. W. ; He, H. H. ; He, M. ; Ohta, I. ; Hotta, N. ; Hu, Haibing ; Hu, H. B. ; Huang, J. ; Huang, Q. ; Jia, H. Y. ; Kajino, F. ; Saito, T. ; Katayose, Y. ; Kato, C. ; Kasahara, K. ; Labaciren ; Le, G. M. ; Li, J. Y. ; Lu, H. ; Lu, S. L. ; Meng, X. R. ; Mizutani, K. ; Mu, J. ; Munakata, K. ; Nagai, A. ; Nanjo, H. ; Nishizawa, M. ; Ohnishi, M. ; Onuma, H. ; Ouchi, T. ; Ozawa, Shunsuke ; Ren, J. R. ; Kawata, K. ; Zhaxisangzhu ; Sasaki, T. ; Shibata, M. ; Shiomi, A. ; Shirai, T. ; Sugimoto, H. ; Zhang, H. M. ; Tateyama, N. ; Torii, Shoji ; Tsuchiya, H. ; Wang, H. ; Wang, X. ; Wang, Y. G. ; Wu, H. R. ; Xue, L. ; Takita, M. ; Yamamoto, Y. ; Yan, C. T. ; Yang, X. C. ; Yasue, S. ; Ye, Z. H. ; Yu, G. C. ; Udo, S. ; Yuda, T. ; Zhang, J. L. ; Zhang, N. J. ; Zhang, X. Y. ; Zhang, Y. ; Zhang, Yi ; Sakata, M. ; Yuan, A. F. ; Tan, Y. H. ; Hibino, K. ; Zhou, X. X. / An upper limit on cosmic-ray p̄/p flux ratio estimated by the Moon's shadow with the Tibet III air shower array. 29th International Cosmic Ray Conference, ICRC 2005. Vol. 6 Tata Institute of Fundamental Research, 2005. pp. 45-48
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    abstract = "The Tibet air shower array has been in operation since 1999 as Tibet III (22,050m2) with energy threshold of a few TeV. As primary cosmic rays are shielded by the Moon having the finite size of 0.5 degree in diameter, we observe a deficit in cosmic rays called the Moon's shadow with sufficient statistical significance. The center of the Moon's shadow shifts westwardly due to the geomagnetic field. By analyzing this energy-dependent westward displacement carefully, we set an upper limit of about 5{\%} at 90{\%} confidence level on the cosmic-ray antiproton/proton ratio at multi-TeV energies.",
    author = "M. Amenomori and S. Ayabe and D. Chen and W. Cui and Danzengluobu and Ding, {L. K.} and Ding, {X. H.} and Feng, {C. F.} and Feng, {Z. Y.} and Gao, {X. Y.} and Geng, {Q. X.} and Guo, {H. W.} and He, {H. H.} and M. He and I. Ohta and N. Hotta and Haibing Hu and Hu, {H. B.} and J. Huang and Q. Huang and Jia, {H. Y.} and F. Kajino and T. Saito and Y. Katayose and C. Kato and K. Kasahara and Labaciren and Le, {G. M.} and Li, {J. Y.} and H. Lu and Lu, {S. L.} and Meng, {X. R.} and K. Mizutani and J. Mu and K. Munakata and A. Nagai and H. Nanjo and M. Nishizawa and M. Ohnishi and H. Onuma and T. Ouchi and Shunsuke Ozawa and Ren, {J. R.} and K. Kawata and Zhaxisangzhu and T. Sasaki and M. Shibata and A. Shiomi and T. Shirai and H. Sugimoto and Zhang, {H. M.} and N. Tateyama and Shoji Torii and H. Tsuchiya and H. Wang and X. Wang and Wang, {Y. G.} and Wu, {H. R.} and L. Xue and M. Takita and Y. Yamamoto and Yan, {C. T.} and Yang, {X. C.} and S. Yasue and Ye, {Z. H.} and Yu, {G. C.} and S. Udo and T. Yuda and Zhang, {J. L.} and Zhang, {N. J.} and Zhang, {X. Y.} and Y. Zhang and Yi Zhang and M. Sakata and Yuan, {A. F.} and Tan, {Y. H.} and K. Hibino and Zhou, {X. X.}",
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    T1 - An upper limit on cosmic-ray p̄/p flux ratio estimated by the Moon's shadow with the Tibet III air shower array

    AU - Amenomori, M.

    AU - Ayabe, S.

    AU - Chen, D.

    AU - Cui, W.

    AU - Danzengluobu,

    AU - Ding, L. K.

    AU - Ding, X. H.

    AU - Feng, C. F.

    AU - Feng, Z. Y.

    AU - Gao, X. Y.

    AU - Geng, Q. X.

    AU - Guo, H. W.

    AU - He, H. H.

    AU - He, M.

    AU - Ohta, I.

    AU - Hotta, N.

    AU - Hu, Haibing

    AU - Hu, H. B.

    AU - Huang, J.

    AU - Huang, Q.

    AU - Jia, H. Y.

    AU - Kajino, F.

    AU - Saito, T.

    AU - Katayose, Y.

    AU - Kato, C.

    AU - Kasahara, K.

    AU - Labaciren,

    AU - Le, G. M.

    AU - Li, J. Y.

    AU - Lu, H.

    AU - Lu, S. L.

    AU - Meng, X. R.

    AU - Mizutani, K.

    AU - Mu, J.

    AU - Munakata, K.

    AU - Nagai, A.

    AU - Nanjo, H.

    AU - Nishizawa, M.

    AU - Ohnishi, M.

    AU - Onuma, H.

    AU - Ouchi, T.

    AU - Ozawa, Shunsuke

    AU - Ren, J. R.

    AU - Kawata, K.

    AU - Zhaxisangzhu,

    AU - Sasaki, T.

    AU - Shibata, M.

    AU - Shiomi, A.

    AU - Shirai, T.

    AU - Sugimoto, H.

    AU - Zhang, H. M.

    AU - Tateyama, N.

    AU - Torii, Shoji

    AU - Tsuchiya, H.

    AU - Wang, H.

    AU - Wang, X.

    AU - Wang, Y. G.

    AU - Wu, H. R.

    AU - Xue, L.

    AU - Takita, M.

    AU - Yamamoto, Y.

    AU - Yan, C. T.

    AU - Yang, X. C.

    AU - Yasue, S.

    AU - Ye, Z. H.

    AU - Yu, G. C.

    AU - Udo, S.

    AU - Yuda, T.

    AU - Zhang, J. L.

    AU - Zhang, N. J.

    AU - Zhang, X. Y.

    AU - Zhang, Y.

    AU - Zhang, Yi

    AU - Sakata, M.

    AU - Yuan, A. F.

    AU - Tan, Y. H.

    AU - Hibino, K.

    AU - Zhou, X. X.

    PY - 2005

    Y1 - 2005

    N2 - The Tibet air shower array has been in operation since 1999 as Tibet III (22,050m2) with energy threshold of a few TeV. As primary cosmic rays are shielded by the Moon having the finite size of 0.5 degree in diameter, we observe a deficit in cosmic rays called the Moon's shadow with sufficient statistical significance. The center of the Moon's shadow shifts westwardly due to the geomagnetic field. By analyzing this energy-dependent westward displacement carefully, we set an upper limit of about 5% at 90% confidence level on the cosmic-ray antiproton/proton ratio at multi-TeV energies.

    AB - The Tibet air shower array has been in operation since 1999 as Tibet III (22,050m2) with energy threshold of a few TeV. As primary cosmic rays are shielded by the Moon having the finite size of 0.5 degree in diameter, we observe a deficit in cosmic rays called the Moon's shadow with sufficient statistical significance. The center of the Moon's shadow shifts westwardly due to the geomagnetic field. By analyzing this energy-dependent westward displacement carefully, we set an upper limit of about 5% at 90% confidence level on the cosmic-ray antiproton/proton ratio at multi-TeV energies.

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    UR - http://www.scopus.com/inward/citedby.url?scp=84899006878&partnerID=8YFLogxK

    M3 - Conference contribution

    AN - SCOPUS:84899006878

    VL - 6

    SP - 45

    EP - 48

    BT - 29th International Cosmic Ray Conference, ICRC 2005

    PB - Tata Institute of Fundamental Research

    ER -