Cosmic-ray spectra of primary protons and high altitude muons deconvolved from observed atmospheric gamma rays

  title={Cosmic-ray spectra of primary protons and high altitude muons deconvolved from observed atmospheric gamma rays},
  author={K. Yoshida and R. Ohmori and Tooru Kobayashi and Yoshiko Komori and Y. Sato and Jun. Nishimura},
  journal={Physical Review D},
We have observed atmospheric gamma rays from 30 GeV to 8 TeV, using emulsion chambers at balloon altitudes, accumulating the largest total exposure in this energy range to date, S{omega}T{approx}6.66 m{sup 2} sr day. At very high altitudes, with residual overburden only a few g cm{sup -2}, atmospheric gamma rays are mainly produced by a single interaction of primary cosmic rays with overlying atmospheric nuclei. Thus, we can use these gamma rays to study the spectrum of primary cosmic rays and… 
Observations of High Energy Cosmic-Ray Electrons from 30 GeV to 3 TeV with Emulsion Chambers
We have performed a series of cosmic-ray electron observations using balloon-borne emulsion chambers since 1968. While we previously reported the results from subsets of the exposures, the final
Cosmic-ray electron spectrum above 100 GeV from PPB-BETS experiment in Antarctica
Cosmic-ray electrons have been observed in the energy region from 10 GeV to 1 TeV with the PPB-BETS by a long duration balloon flight using a Polar Patrol Balloon (PPB) in Antarctica. The observation
Primary cosmic ray mass composition seen through gamma rays detected by passive balloon-borne emulsion chambers
The gamma rays detected by passive balloon-borne emulsion chamber s in the stratosphere allow indirect testing of the conclusions based on the analysis of the primary particle tracks. Here we show
On the cosmological propagation of high energy particles in magnetic fields
In the present work the connection between high energy particles and cosmic magnetic fields is explored. Particularly, the focus lies on the propagation of ultra-high energy cosmic rays (UHECRs) and
Measurement of the Charge Ratio of Atmospheric Muons at the Compact Muon Solenoid in Events with Momenta Between 5 GeV/c and 1 TeV/c
of Dissertation Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy MEASUREMENT OF THE CHARGE RATIO OF
Directional sensitivity of MuSTAnG muon telescope
We investigate directional sensitivity of MuSTAnG muon telescope by deriving the distribution of secondary muons, which create the counting rate of telescope, by asymptotic directions of primary


This report deals with proposed new waiting restrictions and amendments to current waiting restrictions to take account of changing circumstances.
Aaron Beck’s cognitive therapy model has been used repeatedly to treat depression and anxiety. The case presented here is a 34-year-old female law student with an adjustment disorder with mixed
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