The large high altitude air shower observatory

X. Bai, B. Y. Bi, X. J. Bi, Z. Cao, S. Z. Chen, Y. Chen, A. Chiavassa, X. H. Cui, Z. G. Dai, D. della Volpe, T. Di Girolamo, Giuseppe Di Sciascio, Y. Z. Fan, J. Giacalone, Y. Q. Guo, H. H. He, T. L. He, M. Heller, D. Huang, Y. F. HuangH. Jia, L. T. Ksenofontov, D. Leahy, F. Li, Z. Li, E. W. Liang, P. Lipari, R. Y. Liu, Y. Liu, S. Liu, X. Ma, O. Martineau-Huynh, D. Martraire, T. Montaruli, D. Ruffolo, Y. V. Stenkin, H. Q. Su, T. Tam, Q. W. Tang, W. W. Tian, P. Vallania, S. Vernetto, C. Vigorito, J. C. Wang, L. Z. Wang, X. Wang, X. Y. Wang, X. J. Wang, Z. X. Wang, D. M. Wei, J. J. Wei, D. Wu, H. R. Wu, X. F. Wu, D. H. Yan, A. Y. Yang, R. Z. Yang, Z. G. Yao, L. Q. Yin, Q. Yuan, Bing Zhang, B. Zhang, L. Zhang, M. F. Zhang, S. S. Zhang, X. Zhang, Yi Zhao, X. X. Zhou, F. R. Zhu, H. Zhu

Research output: Contribution to journalArticlepeer-review


The Large High Altitude Air Shower Observatory (LHAASO) project is a new generation multi-component instrument, to be built at 4410 meters of altitude in the Sichuan province of China, with the aim to study with unprecedented sensitivity the spectrum, the composition and the anisotropy of cosmic rays in the energy range between 1012 and 1018 eV, as well as to act simultaneously as a wide aperture (one stereo-radiant), continuously-operated gamma ray telescope in the energy range between 1011 and 1015 eV. The experiment will be able of continuously surveying the TeV sky for steady and transient sources from 100 GeV to 1 PeV, thus opening for the first time the 100-1000 TeV range to the direct observations of the high energy cosmic ray sources. In addition, the different observables (electronic, muonic and Cherenkov/fluorescence components) that will be measured in LHAASO will allow to investigate origin, acceleration and propagation of the radiation through a measurement of energy spectrum, elemental composition and anisotropy with unprecedented resolution. The remarkable sensitivity of LHAASO in cosmic rays physics and gamma astronomy would play a key-role in the comprehensive general program to explore the High Energy Universe. LHAASO will allow important studies of fundamental physics (such as indirect dark matter search, Lorentz invariance violation, quantum gravity) and solar and heliospheric physics. In this document we introduce the concept of LHAASO and the main science goals, providing an overview of the project.

Original languageEnglish (US)
JournalUnknown Journal
StatePublished - May 7 2019


  • Air showers
  • Cosmic Ray physics
  • EAS arrays
  • Solar-heliospheric physics
  • TeV gamma-ray astronomy

ASJC Scopus subject areas

  • General

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