PoS(ICRC2019)487 3 3 5 3 14 3 3 14 10 5 15 6 3 , 3 16 9 Xu Chen, Y. Y. Guo, H. Wang, J. S. Liu, A. F. Yuan, 3 3 H. B. Hu, 3 T. Ohura, 10 http://pos.sissa.it/ 5 16 Y. Zhang, Y. Katayose, W. Takano, Labaciren, 16 8 13 27 17 J. H. Fang, K. Munakata, T. K. Sako, 3 C. Liu, 14 S. Udo, 12 2 29 Q. B. Gou, and X. X. Zhou W. Y. Chen, Y. Yokoe, 5 5 5 3 Haibing Hu, M. Kozai, M. Ohnishi, B. Liu, X. Y. Zhang, 11 15 6 21 L. K. Ding, , 2 H. Mitsui, K. Kasahara, 3 H. Sugimoto, 5 5 M. Sakata, Qi Gao, 12 26 Z. Yang, 9 25 Y. Ko, H. Tsuchiya, 12 T. L. Chen, 15 4 N. Hotta, 28 Y.-H. Lin, X. Zhang, 10 Zhaxisangzhu, 9 3 3 , Collaboration) T. Saito, F. Kajino, 3 X. R. Meng, M. Nishizawa, A. Shiomi, γ 4 Z. Y. Feng, 24 3 1 S. Torii, 14 3 D. Chen, Danzengluobu, W. Kihara, 3 10 7 Y. Yamamoto, 16 K. Hibino, H.Lu, W. J. Li, 7 5 14 S. P. Zhao 20 H.-B. Jin, J. L. Zhang, X. B. Qu, 3 H. Nanjo, 3 3 X. J. Bi, 23 3 2 M. Shibata, (The AS S. W. Cui, 8 , 5 H. J. Li, Z. T. He, 3 K. Kawata, 3 N. Tateyama, 3 , 8 Zhaoyang Feng, Y.-Q. Lou, 3 , L.Jiang, 16 8 3 19 9 K. Yagisawa, Ying Zhang, X. L. Qian, 8 Y.-W. Bao, 3 H. M. Zhang, J. Shao, 22 1 4 Y. Nakamura, , H. H. He, ∗ 14 Cirennima, W. Liu, S. Kato, 14 3 A. F. Li, Y. H. Tan, 2 5 H. Y. Jia, 15 L. Xue, 18 16 3 C. F. Feng, 3 3 Yi Zhang, S. Ozawa, L. M. Zhai Y. Chen, C. Kato, M. Y. Liu, Y. Q. Guo, Y. Sengoku, H. Nakada, G. M. Le, Copyright owned by the author(s) under the terms of the Creative Commons M. Takita, J. Huang, H. R. Wu, M. Amenomori, c K. Fang, Hadronic interactions and EAS muon multiplicity investigated with the new Tibet hybridmuon experimental data Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). PoS(ICRC2019)487 eV recorded by Tibet-MD array. We 16 to 10 14 250357, 100084, China 100049, China Koganei 184-8795, Japan Sagamihara 252-5210, Japan Utsunomiya University, Utsunomiya 321-8505, Japan National Institute of Informatics, Tokyo 101-8430, Japan 11 Shonan Institute of Technology, Fujisawa 251-8511, Japan Shibaura Institute of Technology, Saitama 337-8570, Japan Japan Atomic Energy Agency, Tokai-mura 319-1195, Japan 21 27 13 29 Department of Physics, Konan University, Kobe 658-8501, Japan University of Chinese Academy of Sciences, Beijing 100049, China Department of Physics, University, Jinan 250100, China 12 6 8 Department of Physics, Hirosaki University, Hirosaki 036-8561, Japan Department of Physics, Shinshu University, Matsumoto 390-8621, Japan 1 Faculty of Engineering, Kanagawa University, Yokohama 221-8686, Japan College of Science, China University of Petroleum, Qingdao, 266555, China 15 Tokyo Metropolitan College of Industrial Technology, Tokyo 116-8523, Japan 10 Physics Department of Science School, Tibet University, 850000, China Department of Physics, Normal University, Shijiazhuang 050016, China College of Industrial Technology, Nihon University, Narashino 275-8576, Japan 24 25 5 7 Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan Faculty of Engineering, Yokohama National University, Yokohama 240-8501, Japan 26 School of Astronomy and Space Science, , Nanjing 210093, China Institute of Modern Physics, SouthWest Jiaotong University, Chengdu 610031, China 16 14 2 9 [email protected] Research Institute for Science and Engineering, Waseda University, Tokyo 169-8555, Japan National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 4 28 Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Department of Mechanical and Electrical Engineering, Shandong Management University, Jinan have carried out detailed Monte CarloQGSJET01c, simulation EPOS-LHC by and using SIBYLL2.1 hadronic CORSIKA interaction (ver.7.35), models. which Theevents includes simulated are air-shower reconstructed with the real detectoriment, configuration and as the all (Tibet-AS+MD) detector hybrid exper- responsesthe are Tibet-AS+MD calculated has using been Geant4 used (ver.the to number 9.5). study of the muons The correlation (Nmuon). data between observedinteraction Here, the model by we air-shower dependence will using size also our (Ne) report new and their hybrid experimental primary result. mass sensitivity and the We have built a new hybridshower detector array system in (Tibet-AS), Tibet, the China, air-shower in core-detectorCherenkov 2014, array muon-detector it (YAC) array consists and of the (Tibet-MD). the underground Incussed Tibet water- in air- this detail paper, by the analyzingshowers muon the (EAS) multiplicity in muon the will components primary be of energy the dis- range of secondary 10 particles of extensive air National Center for Space Weather, China Meteorological Administration, Beijing 100081, China Advanced ICT Research Institute, National Institute of Information and Communication Technology, 17 23 18 Physics Department, Astronomy Department and Tsinghua Center for Astrophysics, Tsinghua-National School of Information Science and Engineering, Shandong Agriculture University, Taian 271018, China 22 Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 20 19 3 Astronomical Observatories of China joint Research Center for Astrophysics, , Beijing E-mail: PoS(ICRC2019)487 Speaker. ∗ 36th International Cosmic Ray Conference -ICRC2019- July 24th - August 1st, 2019 Madison, WI, U.S.A. PoS(ICRC2019)487 L. M. Zhai 1 The collaborative experiment of the Tibet Air Shower Arrays has been conducted under the auspices of the Ministry ofof Science Japan. and Technology of This China workAreas and was from the supported the Ministry Ministry in of of part Foreign Education, byfor Culture, Affairs Sports, a Science Science, Grant-in-Aid Research and for from Technology, by Scientific the Grants-in-Aid is Research Japan supported on by Society Priority the for National thesupported Key Promotion by R&D the of Program Grants Science of from in11803038, China the Japan. 11533007, (No.2016YFE0125500). National 11673041 Natural and This This 11873065). Science work work This FoundationParticle is work of Astrophysics, is China Institute supported (Nos.11603047, of by High the Energy Keyresearch Laboratory Physics, program of of CAS. the This Institute work for is Cosmic supported Ray by Research the (ICRR), joint the University of Tokyo. Hadronic interactions and EAS muon multiplicity investigated Acknowledgments