Titlebook: High Energy Cosmic Rays; Todor Stanev Book 2021Latest edition Springer Nature Switzerland AG 2021 Astroparticle Physics.Multi-messenger as

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Cosmic Ray Showerstrack belonging to a charged particle was observed to split into two tracks. The observations of showers led to the development of the electromagnetic cascade theory in the 1930s with the participation of many of the famous physicists of the time.

IRS

High Energy Neutrino and Gamma-Ray Astronomydetected the neutrinos from SN1987a and continuously monitors the emission of solar neutrinos in different energy ranges. Davis and Koshiba received the 2002 Nobel prize in physics for these observations.

FEAT

The French Competition Authority (FCA) has a general competence to ensure that economic operators comply with competition rules, regardless of the economic sector (i.e. the rules apply to all production, distribution and service activities).

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Cosmic Ray InteractionsThis book is not a book on high energy physics and particle interactions. We have, however, to give the reader some information on the structure of matter and the interactions between its building blocks, because these are necessary for the understanding of the phenomena of cosmic ray acceleration, propagation in the Universe, and detection.