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The Spectra of Cosmic Pions and Nucleons at Low and High Geomagnetic Latitudes at the Top of the Atmosphere
Author(s) -
Bhattacharyya D. P.,
Mukherjee Maitri,
Basu D.
Publication year - 1975
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19754870302
Subject(s) - pion , physics , cosmic ray , nucleon , spectral line , muon , geomagnetic latitude , earth's magnetic field , atmosphere (unit) , latitude , cosmic cancer database , range (aeronautics) , nuclear physics , atmospheric sciences , astrophysics , astronomy , magnetic field , meteorology , materials science , quantum mechanics , composite material
The spectra of cosmic pions and nucleons at an atmospheric depth of 100 g cm −2 have been derived from sea level muon spectra at low and high latitudes. The derived spectra of pions and nucleons at low and high latitudes follow the relations N ( E π) dE π = 0.23 E π −2.68 dE π and N ( E p ) dE p = 2.98 E p −2.68dE p per cm 2 sec str GeV in the energy range 15–1200 GeV. Below 15 GeV it is found that the exponent of the energy spectrum is very much dependent upon the incident energy and latitude of the location. The major difference between low and high latitude pion spectra can be explained in terms of geomagnetic effects.