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Latest Results of Cosmic Ray Energy Spectrum and Composition Measurements From GRAPES-3 Experiment

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Proceedings of the XXIV DAE-BRNS High Energy Physics Symposium, Jatni, India

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 277))

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Abstract

The open questions in cosmic ray physics like their astrophysical origin, acceleration, and propagation in the interstellar medium can be understood by precise measurements of the nuclear composition, and energy spectrum of the primary cosmic rays at the ’kneeâ and the region beyond it. The GRAPES-3 experiment located at Ooty in India is designed with a densely packed array of 400 plastic scintillator detectors and a large area muon detector. It measures cosmic rays from several TeV to over 10 PeV that provide a substantial overlap with direct experiments as well as covers the knee region. The muon multiplicity distribution measured by the large area tracking muon detector associated with the array provides precise measurement of the average nuclear composition of primary cosmic rays. Recently, we have attempted to measure the energy spectrum and composition from sub-TeV to over 10 PeV. The details of this study will be discussed.

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Author information

Authors and Affiliations

  1. The GRAPES-3 Experiment, Cosmic Ray Laboratory, Raj Bhavan, Ooty, 643001, India

    F. Varsi, S. Ahmad, M. Chakraborty, A. Chandra, S. R. Dugad, S. K. Gupta, B. Hariharan, Y. Hayashi, P. Jagadeesan, A. Jain, P. Jain, V. B. Jhansi, S. Kawakami, H. Kojima, S. Mahapatra, P. K. Mohanty, R. Moharana, S. D. Morris, Y. Muraki, P. K. Nayak, A. Oshima, B. Pant, D. Pattanaik, G. Pradhan, P. S. Rakshe, K. Ramesh, B. S. Rao, L. V. Reddy, R. Sahoo, R. Scaria, S. Shibata, K. Tanaka & M. Zuberi

  2. Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400005, India

    M. Chakraborty, S. R. Dugad, S. K. Gupta, B. Hariharan, P. Jagadeesan, A. Jain, V. B. Jhansi, P. K. Mohanty, R. Moharana, S. D. Morris, P. K. Nayak, D. Pattanaik, P. S. Rakshe, K. Ramesh, B. S. Rao, L. V. Reddy & M. Zuberi

  3. Aligarh Muslim University, Aligarh, 202002, India

    S. Ahmad & A. Chandra

  4. Graduate School of Science, Osaka City University, Osaka, 558-8585, Japan

    Y. Hayashi & S. Kawakami

  5. Indian Institute of Technology Kanpur, Kanpur, 208016, India

    F. Varsi & P. Jain

  6. College of Engineering, Chubu University, Kasugai, Aichi, 487-8501, Japan

    H. Kojima, A. Oshima & S. Shibata

  7. Utkal University, Bhubaneswar, India

    S. Mahapatra

  8. Indian Institute of Technology Jodhpur, Jodhpur, 342037, India

    R. Moharana & B. Pant

  9. Institute of Space-Earth Environmental Research, Nagoya University, Nagoya, 464-8601, Japan

    Y. Muraki & R. Scaria

  10. Indian Institute of Technology Indore, Indore, 453552, India

    G. Pradhan

  11. Department of Physics, Indian Institute of Technology Indore, Simrol, Indore, 453552, India

    R. Sahoo

  12. Graduate School of Information Sciences, Hiroshima City University, Hiroshima, 731-3194, Japan

    K. Tanaka

Authors
  1. F. Varsi
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  2. S. Ahmad
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  3. M. Chakraborty
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  4. A. Chandra
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  5. S. R. Dugad
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  6. S. K. Gupta
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  7. B. Hariharan
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  8. Y. Hayashi
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  9. P. Jagadeesan
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  10. A. Jain
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  11. P. Jain
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  12. V. B. Jhansi
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  13. S. Kawakami
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  14. H. Kojima
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  15. S. Mahapatra
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  16. P. K. Mohanty
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  17. R. Moharana
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  18. S. D. Morris
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  19. Y. Muraki
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  20. P. K. Nayak
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  21. A. Oshima
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  22. B. Pant
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  23. D. Pattanaik
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  24. G. Pradhan
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  25. P. S. Rakshe
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  26. K. Ramesh
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  27. B. S. Rao
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  28. L. V. Reddy
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  29. R. Sahoo
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  30. R. Scaria
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  31. S. Shibata
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  32. K. Tanaka
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  33. M. Zuberi
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Corresponding author

Correspondence to F. Varsi .

Editor information

Editors and Affiliations

  1. School of Physical Sciences, National Institute of Science Education and Research, Jatni, India

    Bedangadas Mohanty

  2. School of Physical Sciences, National Institute of Science Education and Research, Jatni, India

    Sanjay Kumar Swain

  3. School of Physical Sciences, National Institute of Science Education and Research, Jatni, India

    Ranbir Singh

  4. School of Physical Sciences, National Institute of Science Education and Research, Jatni, India

    Varchaswi K. S. Kashyap

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© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Varsi, F. et al. (2022). Latest Results of Cosmic Ray Energy Spectrum and Composition Measurements From GRAPES-3 Experiment. In: Mohanty, B., Swain, S.K., Singh, R., Kashyap, V.K.S. (eds) Proceedings of the XXIV DAE-BRNS High Energy Physics Symposium, Jatni, India. Springer Proceedings in Physics, vol 277. Springer, Singapore. https://doi.org/10.1007/978-981-19-2354-8_118

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  • DOI: https://doi.org/10.1007/978-981-19-2354-8_118

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-19-2353-1

  • Online ISBN: 978-981-19-2354-8

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