Time dependence of loss-cone amplitude measured with the tibet air-shower array

M. Amenomori, X. J. Bi, D. Chen, W. Y. Chen, S. W. Cui, Danzeng Luobu, L. K. Ding, X. H. Ding, C. F. Feng, Zhaoyang Feng, Z. Y. Feng, Q. B. Gou, H. W. Guo, Y. Q. Guo, H. H. He, Z. T. He, K. Hibino, N. Hotta, Haibing Hu, H. B. HuJ. Huang, W. J. Li, H. Y. Jia, L. Jiang, F. Kajino, K. Kasahara, Y. Katayose, C. Kato, K. Kawata, La Baciren, G. M. Le, A. F. Li, C. Liu, J. S. Liu, H. Lu, X. R. Meng, K. Mizutani, K. Munakata, H. Nanjo, M. Nishizawa, M. Ohnish, I. Ohta, Shunsuke Ozawa, X. L. Qian, X. B. Qu, T. Saito, T. Y. Saito, M. Sakata, T. K. Sako, J. Shao, M. Shibata, A. Shiomi, T. Shirai, H. Sugimoto, M. Takita, Y. H. Tan, N. Tateyama, Shoji Torii, H. Tsuchiya, S. Udo, H. Wang, H. R. Wu, L. Xue, Y. Yamamoto, Z. Yang, S. Yasue, A. F. Yuan, T. Yuda, L. M. Zhai, H. M. Zhang, J. L. Zhang, X. Y. Zhang, Y. Zhang, Yi Zhang, Ying Zhang, Zhaxisa Ngzhu, X. X. Zhou

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

4 Citations (Scopus)

Abstract

The galactic cosmic-ray anisotropy at TeV energies has a large-scale deficit region distributed around 150 to 240 degrees in right ascension, which is called "Loss-Cone". The Milagro experiment in the U.S. detected a significant increase in the Loss-Cone amplitude at 6 TeV from July 2000 to July 2007, and argued that it could be due to variations in the heliosphere in relation to solar activities. In this presentation, we report on the time dependence of the Loss-Cone amplitude from November 1999 through December 2008 measured with the Tibet air-shower array. No time dependence was found in the Loss-Cone amplitude at energies of 4.4, 6.2, and 11 TeV. If the increase in the Loss-Cone amplitude Milagro detected were genuine, the same tendency would be seen at sub-TeV energies where the anisotropy is far more sensitive to solar activities. Matsushiro underground muon observation at 0.6 TeV during the corresponding period, however, reported no significant increase of the Loss-Cone amplitude.

Original languageEnglish
Title of host publicationProceedings of the 32nd International Cosmic Ray Conference, ICRC 2011
PublisherInstitute of High Energy Physics
Pages62-65
Number of pages4
Volume1
DOIs
Publication statusPublished - 2011
Event32nd International Cosmic Ray Conference, ICRC 2011 - Beijing
Duration: 2011 Aug 112011 Aug 18

Other

Other32nd International Cosmic Ray Conference, ICRC 2011
CityBeijing
Period11/8/1111/8/18

Fingerprint

Tibet
cosmic ray showers
time dependence
cones
solar activity
anisotropy
heliosphere
energy
muons
tendencies

Keywords

  • Galactic cosmic rays
  • Loss cone
  • Sidereal anisotropy
  • TeV energies
  • Tibet

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Amenomori, M., Bi, X. J., Chen, D., Chen, W. Y., Cui, S. W., Luobu, D., ... Zhou, X. X. (2011). Time dependence of loss-cone amplitude measured with the tibet air-shower array. In Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011 (Vol. 1, pp. 62-65). Institute of High Energy Physics. https://doi.org/10.7529/ICRC2011/V01/0379

Time dependence of loss-cone amplitude measured with the tibet air-shower array. / Amenomori, M.; Bi, X. J.; Chen, D.; Chen, W. Y.; Cui, S. W.; Luobu, Danzeng; Ding, L. K.; Ding, X. H.; Feng, C. F.; Feng, Zhaoyang; Feng, Z. Y.; Gou, Q. B.; Guo, H. W.; Guo, Y. Q.; He, H. H.; He, Z. T.; Hibino, K.; Hotta, N.; Hu, Haibing; Hu, H. B.; Huang, J.; Li, W. J.; Jia, H. Y.; Jiang, L.; Kajino, F.; Kasahara, K.; Katayose, Y.; Kato, C.; Kawata, K.; Baciren, La; Le, G. M.; Li, A. F.; Liu, C.; Liu, J. S.; Lu, H.; Meng, X. R.; Mizutani, K.; Munakata, K.; Nanjo, H.; Nishizawa, M.; Ohnish, M.; Ohta, I.; Ozawa, Shunsuke; Qian, X. L.; Qu, X. B.; Saito, T.; Saito, T. Y.; Sakata, M.; Sako, T. K.; Shao, J.; Shibata, M.; Shiomi, A.; Shirai, T.; Sugimoto, H.; Takita, M.; Tan, Y. H.; Tateyama, N.; Torii, Shoji; Tsuchiya, H.; Udo, S.; Wang, H.; Wu, H. R.; Xue, L.; Yamamoto, Y.; Yang, Z.; Yasue, S.; Yuan, A. F.; Yuda, T.; Zhai, L. M.; Zhang, H. M.; Zhang, J. L.; Zhang, X. Y.; Zhang, Y.; Zhang, Yi; Zhang, Ying; Ngzhu, Zhaxisa; Zhou, X. X.

Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011. Vol. 1 Institute of High Energy Physics, 2011. p. 62-65.

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

Amenomori, M, Bi, XJ, Chen, D, Chen, WY, Cui, SW, Luobu, D, Ding, LK, Ding, XH, Feng, CF, Feng, Z, Feng, ZY, Gou, QB, Guo, HW, Guo, YQ, He, HH, He, ZT, Hibino, K, Hotta, N, Hu, H, Hu, HB, Huang, J, Li, WJ, Jia, HY, Jiang, L, Kajino, F, Kasahara, K, Katayose, Y, Kato, C, Kawata, K, Baciren, L, Le, GM, Li, AF, Liu, C, Liu, JS, Lu, H, Meng, XR, Mizutani, K, Munakata, K, Nanjo, H, Nishizawa, M, Ohnish, M, Ohta, I, Ozawa, S, Qian, XL, Qu, XB, Saito, T, Saito, TY, Sakata, M, Sako, TK, Shao, J, Shibata, M, Shiomi, A, Shirai, T, Sugimoto, H, Takita, M, Tan, YH, Tateyama, N, Torii, S, Tsuchiya, H, Udo, S, Wang, H, Wu, HR, Xue, L, Yamamoto, Y, Yang, Z, Yasue, S, Yuan, AF, Yuda, T, Zhai, LM, Zhang, HM, Zhang, JL, Zhang, XY, Zhang, Y, Zhang, Y, Zhang, Y, Ngzhu, Z & Zhou, XX 2011, Time dependence of loss-cone amplitude measured with the tibet air-shower array. in Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011. vol. 1, Institute of High Energy Physics, pp. 62-65, 32nd International Cosmic Ray Conference, ICRC 2011, Beijing, 11/8/11. https://doi.org/10.7529/ICRC2011/V01/0379
Amenomori M, Bi XJ, Chen D, Chen WY, Cui SW, Luobu D et al. Time dependence of loss-cone amplitude measured with the tibet air-shower array. In Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011. Vol. 1. Institute of High Energy Physics. 2011. p. 62-65 https://doi.org/10.7529/ICRC2011/V01/0379
Amenomori, M. ; Bi, X. J. ; Chen, D. ; Chen, W. Y. ; Cui, S. W. ; Luobu, Danzeng ; Ding, L. K. ; Ding, X. H. ; Feng, C. F. ; Feng, Zhaoyang ; Feng, Z. Y. ; Gou, Q. B. ; Guo, H. W. ; Guo, Y. Q. ; He, H. H. ; He, Z. T. ; Hibino, K. ; Hotta, N. ; Hu, Haibing ; Hu, H. B. ; Huang, J. ; Li, W. J. ; Jia, H. Y. ; Jiang, L. ; Kajino, F. ; Kasahara, K. ; Katayose, Y. ; Kato, C. ; Kawata, K. ; Baciren, La ; Le, G. M. ; Li, A. F. ; Liu, C. ; Liu, J. S. ; Lu, H. ; Meng, X. R. ; Mizutani, K. ; Munakata, K. ; Nanjo, H. ; Nishizawa, M. ; Ohnish, M. ; Ohta, I. ; Ozawa, Shunsuke ; Qian, X. L. ; Qu, X. B. ; Saito, T. ; Saito, T. Y. ; Sakata, M. ; Sako, T. K. ; Shao, J. ; Shibata, M. ; Shiomi, A. ; Shirai, T. ; Sugimoto, H. ; Takita, M. ; Tan, Y. H. ; Tateyama, N. ; Torii, Shoji ; Tsuchiya, H. ; Udo, S. ; Wang, H. ; Wu, H. R. ; Xue, L. ; Yamamoto, Y. ; Yang, Z. ; Yasue, S. ; Yuan, A. F. ; Yuda, T. ; Zhai, L. M. ; Zhang, H. M. ; Zhang, J. L. ; Zhang, X. Y. ; Zhang, Y. ; Zhang, Yi ; Zhang, Ying ; Ngzhu, Zhaxisa ; Zhou, X. X. / Time dependence of loss-cone amplitude measured with the tibet air-shower array. Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011. Vol. 1 Institute of High Energy Physics, 2011. pp. 62-65
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title = "Time dependence of loss-cone amplitude measured with the tibet air-shower array",
abstract = "The galactic cosmic-ray anisotropy at TeV energies has a large-scale deficit region distributed around 150 to 240 degrees in right ascension, which is called {"}Loss-Cone{"}. The Milagro experiment in the U.S. detected a significant increase in the Loss-Cone amplitude at 6 TeV from July 2000 to July 2007, and argued that it could be due to variations in the heliosphere in relation to solar activities. In this presentation, we report on the time dependence of the Loss-Cone amplitude from November 1999 through December 2008 measured with the Tibet air-shower array. No time dependence was found in the Loss-Cone amplitude at energies of 4.4, 6.2, and 11 TeV. If the increase in the Loss-Cone amplitude Milagro detected were genuine, the same tendency would be seen at sub-TeV energies where the anisotropy is far more sensitive to solar activities. Matsushiro underground muon observation at 0.6 TeV during the corresponding period, however, reported no significant increase of the Loss-Cone amplitude.",
keywords = "Galactic cosmic rays, Loss cone, Sidereal anisotropy, TeV energies, Tibet",
author = "M. Amenomori and Bi, {X. J.} and D. Chen and Chen, {W. Y.} and Cui, {S. W.} and Danzeng Luobu and Ding, {L. K.} and Ding, {X. H.} and Feng, {C. F.} and Zhaoyang Feng and Feng, {Z. Y.} and Gou, {Q. B.} and Guo, {H. W.} and Guo, {Y. Q.} and He, {H. H.} and He, {Z. T.} and K. Hibino and N. Hotta and Haibing Hu and Hu, {H. B.} and J. Huang and Li, {W. J.} and Jia, {H. Y.} and L. Jiang and F. Kajino and K. Kasahara and Y. Katayose and C. Kato and K. Kawata and La Baciren and Le, {G. M.} and Li, {A. F.} and C. Liu and Liu, {J. S.} and H. Lu and Meng, {X. R.} and K. Mizutani and K. Munakata and H. Nanjo and M. Nishizawa and M. Ohnish and I. Ohta and Shunsuke Ozawa and Qian, {X. L.} and Qu, {X. B.} and T. Saito and Saito, {T. Y.} and M. Sakata and Sako, {T. K.} and J. Shao and M. Shibata and A. Shiomi and T. Shirai and H. Sugimoto and M. Takita and Tan, {Y. H.} and N. Tateyama and Shoji Torii and H. Tsuchiya and S. Udo and H. Wang and Wu, {H. R.} and L. Xue and Y. Yamamoto and Z. Yang and S. Yasue and Yuan, {A. F.} and T. Yuda and Zhai, {L. M.} and Zhang, {H. M.} and Zhang, {J. L.} and Zhang, {X. Y.} and Y. Zhang and Yi Zhang and Ying Zhang and Zhaxisa Ngzhu and Zhou, {X. X.}",
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doi = "10.7529/ICRC2011/V01/0379",
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T1 - Time dependence of loss-cone amplitude measured with the tibet air-shower array

AU - Amenomori, M.

AU - Bi, X. J.

AU - Chen, D.

AU - Chen, W. Y.

AU - Cui, S. W.

AU - Luobu, Danzeng

AU - Ding, L. K.

AU - Ding, X. H.

AU - Feng, C. F.

AU - Feng, Zhaoyang

AU - Feng, Z. Y.

AU - Gou, Q. B.

AU - Guo, H. W.

AU - Guo, Y. Q.

AU - He, H. H.

AU - He, Z. T.

AU - Hibino, K.

AU - Hotta, N.

AU - Hu, Haibing

AU - Hu, H. B.

AU - Huang, J.

AU - Li, W. J.

AU - Jia, H. Y.

AU - Jiang, L.

AU - Kajino, F.

AU - Kasahara, K.

AU - Katayose, Y.

AU - Kato, C.

AU - Kawata, K.

AU - Baciren, La

AU - Le, G. M.

AU - Li, A. F.

AU - Liu, C.

AU - Liu, J. S.

AU - Lu, H.

AU - Meng, X. R.

AU - Mizutani, K.

AU - Munakata, K.

AU - Nanjo, H.

AU - Nishizawa, M.

AU - Ohnish, M.

AU - Ohta, I.

AU - Ozawa, Shunsuke

AU - Qian, X. L.

AU - Qu, X. B.

AU - Saito, T.

AU - Saito, T. Y.

AU - Sakata, M.

AU - Sako, T. K.

AU - Shao, J.

AU - Shibata, M.

AU - Shiomi, A.

AU - Shirai, T.

AU - Sugimoto, H.

AU - Takita, M.

AU - Tan, Y. H.

AU - Tateyama, N.

AU - Torii, Shoji

AU - Tsuchiya, H.

AU - Udo, S.

AU - Wang, H.

AU - Wu, H. R.

AU - Xue, L.

AU - Yamamoto, Y.

AU - Yang, Z.

AU - Yasue, S.

AU - Yuan, A. F.

AU - Yuda, T.

AU - Zhai, L. M.

AU - Zhang, H. M.

AU - Zhang, J. L.

AU - Zhang, X. Y.

AU - Zhang, Y.

AU - Zhang, Yi

AU - Zhang, Ying

AU - Ngzhu, Zhaxisa

AU - Zhou, X. X.

PY - 2011

Y1 - 2011

N2 - The galactic cosmic-ray anisotropy at TeV energies has a large-scale deficit region distributed around 150 to 240 degrees in right ascension, which is called "Loss-Cone". The Milagro experiment in the U.S. detected a significant increase in the Loss-Cone amplitude at 6 TeV from July 2000 to July 2007, and argued that it could be due to variations in the heliosphere in relation to solar activities. In this presentation, we report on the time dependence of the Loss-Cone amplitude from November 1999 through December 2008 measured with the Tibet air-shower array. No time dependence was found in the Loss-Cone amplitude at energies of 4.4, 6.2, and 11 TeV. If the increase in the Loss-Cone amplitude Milagro detected were genuine, the same tendency would be seen at sub-TeV energies where the anisotropy is far more sensitive to solar activities. Matsushiro underground muon observation at 0.6 TeV during the corresponding period, however, reported no significant increase of the Loss-Cone amplitude.

AB - The galactic cosmic-ray anisotropy at TeV energies has a large-scale deficit region distributed around 150 to 240 degrees in right ascension, which is called "Loss-Cone". The Milagro experiment in the U.S. detected a significant increase in the Loss-Cone amplitude at 6 TeV from July 2000 to July 2007, and argued that it could be due to variations in the heliosphere in relation to solar activities. In this presentation, we report on the time dependence of the Loss-Cone amplitude from November 1999 through December 2008 measured with the Tibet air-shower array. No time dependence was found in the Loss-Cone amplitude at energies of 4.4, 6.2, and 11 TeV. If the increase in the Loss-Cone amplitude Milagro detected were genuine, the same tendency would be seen at sub-TeV energies where the anisotropy is far more sensitive to solar activities. Matsushiro underground muon observation at 0.6 TeV during the corresponding period, however, reported no significant increase of the Loss-Cone amplitude.

KW - Galactic cosmic rays

KW - Loss cone

KW - Sidereal anisotropy

KW - TeV energies

KW - Tibet

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U2 - 10.7529/ICRC2011/V01/0379

DO - 10.7529/ICRC2011/V01/0379

M3 - Conference contribution

AN - SCOPUS:84871281797

VL - 1

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BT - Proceedings of the 32nd International Cosmic Ray Conference, ICRC 2011

PB - Institute of High Energy Physics

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