Proton and Helium spectra obtained by RUNJOB experiment

M. Hareyama, V. A. Derbina, V. I. Galkin, Y. Hirakawa, Y. Horiuchi, M. Ichimura, N. Inoue, E. Kamioka, T. Kobayashi, V. V. Kopenkin, S. Kuramata, A. K. Managadze, H. Matsutani, N. P. Misnikova, R. A. Mukhamedshin, S. Nagasawa, R. Nakano, M. Namiki, M. Nakazawa, H. NanjoS. N. Nazarov, S. Ohata, H. Ohtomo, V. I. Osedlo, D. S. Oshuev, P. A. Publichenko, I. V. Rakobolskaya, T. M. Roganova, C. Saito, G. P. Sazhina, H. Semba, T. Shibata, D. Shuto, H. Sugimoto, R. Suzuki, L. G. Sveshnikova, V. M. Taran, N. Yajima, T. Yamagami, I. V. Yashin, E. A. Zamchalova, G. T. Zatsepin, I. S. Zayarnaya

Research output: Contribution to conferencePaper

5 Citations (Scopus)

Abstract

This report presents the final results of the proton and the helium spectra in the energy range between 10 and 500 TeV/nucleon obtained by RUNJOB experiments as trans-Siverian long duration balloon. A proton with PeV energy was directly detected in 1995 campaign. This is the first detection of proton event more than 1015 eV in direct observation. Our proton spectrum is in good agreement with other results such as JACEE and SOKOL, but the intensity of the helium component is nearly half that obtained by them, while it agrees with MUBEE. The slopes of the spectra of these two elements in RUNJOB are almost parallel with power index of 2.7?2.8 in the energy range 10?500 TeV/nucleon. These results suggests simply acceleration and propagation mechanism of cosmic rays depending on particle rigidity.

Original languageEnglish
Pages17-20
Number of pages4
Publication statusPublished - 2005 Jan 1
Externally publishedYes
Event29th International Cosmic Ray Conference, ICRC 2005 - Pune, India
Duration: 2005 Aug 32005 Aug 10

Conference

Conference29th International Cosmic Ray Conference, ICRC 2005
CountryIndia
CityPune
Period05/8/305/8/10

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Proton and Helium spectra obtained by RUNJOB experiment'. Together they form a unique fingerprint.

  • Cite this

    Hareyama, M., Derbina, V. A., Galkin, V. I., Hirakawa, Y., Horiuchi, Y., Ichimura, M., Inoue, N., Kamioka, E., Kobayashi, T., Kopenkin, V. V., Kuramata, S., Managadze, A. K., Matsutani, H., Misnikova, N. P., Mukhamedshin, R. A., Nagasawa, S., Nakano, R., Namiki, M., Nakazawa, M., ... Zayarnaya, I. S. (2005). Proton and Helium spectra obtained by RUNJOB experiment. 17-20. Paper presented at 29th International Cosmic Ray Conference, ICRC 2005, Pune, India.