Atmospheric effects of the cosmic-ray mu-meson component
نویسندگان
چکیده
منابع مشابه
Threshold meson production and cosmic ray transport
An interesting accident of nature is that the peak of the cosmic ray spectrum, for both protons and heavier nuclei, occurs near the pion production threshold. The Boltzmann transport equation contains a term which is the cosmic ray flux multiplied by the cross section. Therefore when considering pion and kaon production from proton-proton reactions, small cross sections at low energy can be as ...
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Cosmic Rays (CR) travel at speeds essentially indistinguishable from the speed of light. However whilst travelling through magnetic fields, both regular and turbulent, they are delayed behind the light since they are usually charged particles and their paths are not linear. Those delays can be so long that they are an impediment to correctly identifying sources which may be variable in time. Fu...
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Measurements of the intensity of primary cosmic-ray protons reported in the last two years suggest a lower normalization than some earlier measurements. Here we comment on the measurements, compare them to the assumptions made in two independent calculations of atmospheric neutrinos and discuss the possible consequences for interpretation of measurements of atmospheric neutrinos. In a series of...
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We have used data from the Cosmic Ray Subsystem on the Voyager spacecraft to measure the spectra of He, C, N, 0, and Ne with 4-124 MeV per nucleon (for 0) during solar minimum conditions near the end of 1977. By subtracting both a low-energy interplanetary component and the high-energy galactic component we have determined the energy spectra of the "anomalous" cosmic-ray species He, N, 0, and N...
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ژورنال
عنوان ژورنال: Solnechno-Zemnaya Fizika
سال: 2018
ISSN: 2412-4737
DOI: 10.12737/szf-43201810