The absolute cosmic ray muon spectrum at sea level

1971 ◽  
Vol 36 (4) ◽  
pp. 425-427 ◽  
Author(s):  
O.C. Allkofer ◽  
K. Carstensen ◽  
W.D. Dau
Keyword(s):  
Sea Level ◽  
Cosmic Ray ◽  
Muon Spectrum ◽  
The Absolute

Sea level muon spectrum from pion and kaon spectra in the atmosphere

1976 ◽  
Vol 54 (18) ◽  
pp. 1880-1883 ◽  
Author(s):  
Deba Prasad Bhattacharyya
Keyword(s):  
Diffusion Equation ◽  
Sea Level ◽  
Satellite Data ◽  
Cosmic Ray ◽  
Muon Spectrum ◽  
Momentum Range ◽  
Type Distribution ◽  
Muon Momentum ◽  
Muon Intensity

The pion and kaon spectra in the top of the atmosphere have been derived from the satellite data of cosmic ray nucleons by using the Bose-type distribution of secondary mesons produced in the inclusive reactions p + p → π− + X and p + p → K− + X. The derived pion and kaon spectra follow the relations of the form π(Eπ) dEπ = 0.184Eπ−2.6 dEπ and K(Ek) dEk = 0.036 Ek−2.6 dEk. With the help of the diffusion equation for pions and kaons in the atmosphere, the sea level muon spectrum has been derived and the results have been compared with the magnetic spectrograph data of Allkofer, Carstensen, and Dau in the muon momentum range 15–1000 GeV/c. The sea level muon intensity arising from kaon parentage increases with energy.

The rate of energy loss of high-energy cosmic ray muons

1963 ◽  
Vol 275 (1362) ◽  
pp. 391-410 ◽  
Keyword(s):  
Energy Spectrum ◽  
Energy Loss ◽  
Sea Level ◽  
Cosmic Ray ◽  
Nuclear Interaction ◽  
High Energy ◽  
Level Energy ◽  
Muon Spectrum ◽  
The Third ◽  
Muon Mass

The rate of energy loss of muons is examined by com paring the observed depth-intensity relation with that predicted from a knowledge of the sea-level energy spectrum of cosmic ray muons. The evidence for each of the parameters entering into the analysis is assessed and estimates are made of the sea-level muon spectrum up to 10000 GeV and the depth-intensity relation down to 7000 m.w.e. The effect of range-straggling on the underground intensities is considered and shown to be important at depths below 1000 m.w.e. Following previous workers the energy loss relation is written as -d E /d x =1.88+0.077 in E ' m / mc 2 + b E MeV g -1 cm 2 , where E ' m is the maximum transferrable energy in a /i-e collision and m is the muon mass. The first two terms give the contribution from ionization (and excitation) loss and the third term is the combined contribution from pair production, bremsstrahlung and nuclear interaction. The best estimate of the coefficient b from the present work is b = (3.95 + 0.25) x 10 -6 g -1 cm 2 over the energy range 500 to 10000 GeV, which is close to the theoretical value of 4.0 x 10 -6 g -1 cm 2 . It is concluded that there is no evidence for any marked anomaly in the energy loss processes for muons of energies up to 10000 GeV.

scholarly journals Muon “depth-intensity” relation measured by the LVD underground experiment and cosmic-ray muon spectrum at sea level

1998 ◽  
Vol 58 (9) ◽  
Author(s):  
M. Aglietta ◽  
B. Alpat ◽  
E. D. Alyea ◽  
P. Antonioli ◽  
G. Badino ◽  
...  
Keyword(s):  
Sea Level ◽  
Cosmic Ray ◽  
Muon Spectrum ◽  
Underground Experiment

The absolute cosmic ray flux at sea level

1975 ◽  
Vol 1 (6) ◽  
pp. L51-L52 ◽  
Author(s):  
O C Allkofer ◽  
K Carstensen ◽  
W D Dau ◽  
H Jokisch
Keyword(s):  
Sea Level ◽  
Cosmic Ray ◽  
The Absolute ◽  
Cosmic Ray Flux

scholarly journals Sea Level Muon Spectrum and Muon Charge Ratio derived from CERN Results for Nucleon?Nucleus Inelastic Interactions

1979 ◽  
Vol 32 (4) ◽  
pp. 369 ◽  
Author(s):  
DP Bhattacharyya ◽  
RK Roychoudhury
Keyword(s):  
Sea Level ◽  
Cross Section ◽  
Pion Production ◽  
Cosmic Ray ◽  
Inelastic Collisions ◽  
Charge Ratio ◽  
Muon Spectrum ◽  
Inelastic Interactions ◽  
The Cross ◽  
Energy Moments

The sea level cosmic ray spectrum and muon charge ratio have been estimated by using the energy moments of the cross section for proton-air inelastic collisions. These energy moments have been determined by interpolation from CERN results for proton-nucleus inelastic interactions in pion production. The derived results are compared with previous work.

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