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The Density spectrum of the penetrating component of the extensive air showers

The Density spectrum of the penetrating component of the extensive air showers

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Published by Hungarian Academy of Sciences, Central Research Institute for Physics in Budapest .
Written in English

    Subjects:
  • Cosmic ray showers.

  • Edition Notes

    Cover title.

    Statement[by] B. Betev [and others].
    SeriesKFKI 27
    ContributionsBetev, B.
    Classifications
    LC ClassificationsQC1 .M23 1969, no. 27
    The Physical Object
    Pagination3 p.
    ID Numbers
    Open LibraryOL5763844M
    LC Control Number71278777

    Extensive Air Showers (EAS) by multiple production of particles in cascading interactions and the muonic component contributes only to few percent in the single shower. However, at lower primary energies, which are domi-nating due to the steeply falling primary spectrum, or in case of very inclined showers the electromagnetic shower. spectrum of the extreme blazar 1ES + with HAWC Thomas Weisgarber. Cosmic Ray Indirect - CRI7 The muon component of extensive air showers above 10^ eV measured with the Pierre Auger Observatory Federico Sánchez. Working Group Report on the Combined Analysis of Muon Density Measurements from Eight Leading Air Shower Experiments.

    Bruno Benedetto Rossi (/ ˈ r ɒ s i /; Italian: ; 13 April – 21 November ) was an Italian experimental made major contributions to particle physics and the study of cosmic rays.A graduate of the University of Bologna, he became interested in cosmic study them, he invented an improved electronic coincidence circuit, and travelled to Eritrea to conduct. Detect Particles in Extensive Air Showers from Cherenkov light created in 60m x 80 m x 8m pond containing filtered water Reconstruct shower direction to ~° from the time different PMTs are hit Hz trigger rate mostly due to Extensive Air Showers created by cosmic rays Field of view is ~2 sr and the average duty factor is >90% 8 meters.

    High penetrating power, in combination with the coefficient of absorption of the substance at moderate energies (tens and hundreds of GeV), which is directly proportional to the density of the substance, makes the penetrating component of cosmic rays a very convenient tool for underground geophysical and engineering exploration (Figure 10). arXivv1 [] 15 Oct Characterisation of the electromagnetic component in ultra-high energy inclined air showers I. Valin˜oa,∗, J. Alvarez-Mun˜izb, M. Rotha, R.A. Vazquez b, E. Zas aKarlsruhe Institute of Technology, POB , D Karlsruhe, Germany bInstituto Galego de F´ısica de Altas Enerx´ıas and Departamento de F´ısica de Part´ıculas.


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The Density spectrum of the penetrating component of the extensive air showers Download PDF EPUB FB2

Abstract. While the density spectrum of air showers is well established for energies above 10 13 ev, doubt has recently been cast upon the customary procedure of identifying the energy spectrum of the shower-initiating particles calculated from this density distribution with the primary cosmic-ray spectrum.

These two distributions would differ if the mechanism of energy transfer to the Cited by: 3. The density spectrum of the penetrating component of the extensive air showers By B. Betev, N. Bogdanova, T. Stanev and György Válas Get PDF (3 MB).

Using a large multiplate cloud chamber containing absorbers of 43 radiation lengths and 24 density detectors, characteristics of the electron- photon component of energy above 1 Bev in extensive air showers (EAS) were studied at sea level.

The size N of the selected shower extended from 2 x 10 4 to 5 x 10 6. Results were compared with data. SAO/NASA Astrophysics Data System (ADS) Title: The density spectrum of the penetrating component of extensive air showers Authors: Betev, B., Bogdanova, N., Stanev, T., & Válas, G.

Journal: High Energy Interactions, Extensive Air Showers. Proceedings of the 11th International Conference on Cosmic Rays, held in Budapest, 25 August - 4 September, The density spectrum of the penetrating component of extensive air showers was measured and the results compared with the expected spectrum folding the derived number spectrum, measuring the density spectrum of extensive air showers, into the lateral distribution of muons.

The energy spectra of charged and neutral hadrons in extensive air Author: A. Pavaresh. The lateral distribution of the muon component of extensive air showers, and the variation in the total number of muons with shower size, have been studied for showers of sizes between 3 × Ultrahigh energy cosmic rays carry information about their sources and the intervening medium apart from providing a beam of particles for studying certain features of high energy interactions currently inaccessible at man-made accelerators.

They can at present be studied only via the extensive air showers (EAS's) they generate while passing through the Earth's atmosphere, since their. was the identification of the prompt muon component in the atmospheric muon spectrum, an issue that is not yet settled and bounds on muon-poor HAS were established [12].

The non-observation of horizontal or upcoming air showers by the fluorescence technique gave a. Extensive Cosmic-ray Air Showers In particular, the fact that the expression (2) can always be made to express given experimental data by choosing an appropriate value of y does not imply that the only incorrectness lies in the assumption of constant y and that it can be removed by taking y to be a weak function of the density.

The present work is an attempt specifically to test the. that the spread of the penetrating component was practically the same as for the soft component.

Succeeding experiments from another source (Eidus, Alymova et al.Vernov et al.Eidus, Blinova et ai. ), however, showed that the extent of air showers was much greater than predicted by Mol&, and could not be explained by any.

spectrum. The CR spectrum is multiplied by E 0. (The gure is given with the permission of IceCube collaboration.) material (air). In addition we also found the energy region in which the penetrating com-ponent appears.

A new component arise threshold way. In this article we identify the key elements that govern the propagation of muons from the production in extensive air showers to ground.

We describe. Particle interactions in the atmosphere.- III. The intensities of the components.- Summary and conclusion.- General references.- Penetrating Showers.- I. Introduction.- II. Attenuation and interaction mean free path of the shower particles.- III.

Meson production in penetrating showers.- IV. Discussion and interpretation.- V. Summary. Fomin's research works with citations and reads, including: No muon excess in extensive air showers at – PeV primary energy: EAS–MSU results.

Cosmic Rays is a two-part book that first elucidates the discovery, nature, and particles produced by cosmic rays. This part also looks into the primary cosmic radiation; radio waves from the galaxy; extensive air showers; origin of cosmic rays; and other cosmic radiations.

Part 2 consists of reprinted papers involving cosmic rays. 3 EXTENSIVE AIR SHOWERS nitrogen in the atmosphere. The resulting uorescence light by the following deexication can be used to obtain a calorimetric measurement of the shower.

Figure A sketch of some possible interactions which lead to the hadronic, electro-magnetic and muonic component of an air shower. Cosmic rays are high-energy protons and atomic nuclei which move through space at nearly the speed of originate from the sun, from outside of the solar system, and from distant galaxies.

They were discovered by Victor Hess in in balloon experiments. Direct measurement of cosmic rays, especially at lower energies, has become possible since the launch of the first satellites in. measurement of the penetrating component of EASs, consisted of energetic muons.

As a matter of fact, beyond a particular energy threshold, the muon content produced by gamma-ray-induced air showers is significantly siz-able and can be measured with dedicated instruments. In the UHE region the muons produced in EASs play.

2 Characteristics of Cosmic Ray Spectrum 3 Extensive Air Showers 4 Observation of Highest Energy Cosmic Rays 5 Mass composition density n = cm 3, cross ˘90 % of E 0 in EM component =)Estimator of primary energy.

Thomas Ehrhardt Astroparticle Seminar 06/28/ 14 / Air showers are initiated by primary CRs, through the interaction with a nucleus in the atmosphere. In addition to the hadronic component the decays of short-lived hadrons lead to a shower of particles: photons, electrons, and positrons constitute the electromagnetic (EM) component; muons and neutrinos constitute the penetrating component.

Extensive air shower Hadronic component Thermal neutron EN-detector RPC a b s t r a c t We on a measurement of thermal neutrons, generated by the hadronic of extensive airshowers(EAS),by meansofasmallarrayofEN-detectorsdevelopedfor thePRISMAproject(PRImary Spectrum Measurement Array), novel devices based on a compound alloy of ZnS(Ag) and 6LiF.Book: ISBN: OCLC Number: The intensities of the components.- Summary and conclusion.- General references.- Penetrating Showers.- I.

Introduction.- II. Attenuation and interaction mean free path of the shower particles.- c) The time distribution.- II. Experimental results.- a) The density spectrum.- b.showers and an outlook of the results that can be obtained in future studies of the inclined data set.

1. Introduction The study of very inclined air showers, at zenith angles, provides an opportunity to examine aspects of extensive air showers that complement and extend the studies possible in .