corner
corner
APS » Journals » Phys. Rev. D » Volume 66 » Issue 5
< Previous Article | Next Article >

Phys. Rev. D 66, 052004 (2002) [9 pages]

Atmospheric gamma-ray observation with the BETS detector for calibrating atmospheric neutrino flux calculations

Download: PDF (415 kB) Buy this article Export: BibTeX or EndNote (RIS)

K. Kasahara1,*, E. Mochizuki1, S. Torii2, T. Tamura2, N. Tateyama2, K. Yoshida2, T. Yamagami3, Y. Saito3, J. Nishimura3, H. Murakami4, T. Kobayashi5, Y. Komori6, M. Honda7, T. Ohuchi7, S. Midorikawa8, and T. Yuda9
1Shibaura Institute of Technology, Saitama, Japan
2Faculty of Engineering, Kanagawa University, Yokohama, Japan
3Institute of Space and Astronautical Science, Sagamihara, Japan
4Department of Physics, Rikkyo University, Toshima-ku, Japan
5Department of Physics, Aoyama Gakuin University, Setagaya-ku, Japan
6Kanagawa Prefectural College, Kanagawa, Japan
7Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Japan
8Information Department, Aomori University, Aomori, Japan
9Solar-Terrestrial Environment Laboratory, Nagoya University, Aichi, Japan

Received 24 June 2002; published 30 September 2002

We observed atmospheric gamma rays around 10 GeV at balloon altitudes (15–25 km) and at a mountain (2770 m a.s.l). The observed results were compared with Monte Carlo calculations to find that an interaction model (Lund FRITIOF1.6) used in an old neutrino flux calculation was not good enough for describing the observed values. Instead, we found that two other nuclear interaction models, Lund FRITIOF7.02 and DPMJET3.03, gave much better agreement with the observations. Our data will serve for examining nuclear interaction models and for deriving a reliable absolute atmospheric neutrino flux in the GeV region.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.66.052004
DOI:
10.1103/PhysRevD.66.052004
PACS:
13.85.Tp, 96.40.Tv

*Email address: kasahara@icrr.u-tokyo.ac.jp

 
< Previous Article | Next Article >