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1996 Fiscal Year Final Research Report Summary

Parallel and Distributed Simulation of Cosmic Ray Phenomena and Data Analysis System

Research Project

Project/Area Number 06640414
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionKanagawa University

Principal Investigator

KASAHARA Katsuaki  Kanagawa Univ.Facul.of Eng.Associate Prof., 工学部, 助教授 (00013425)

Co-Investigator(Kenkyū-buntansha) HIBINO Kinya  Kanagawa Univ.Facul.of Eng.Lecturer, 工学部, 講師 (80260991)
Project Period (FY) 1994 – 1996
Keywordscosmic ray / Monte-Carlo / Atmospheric Neutrino / air shower / GZK cutoff
Research Abstract

One of the aims of the project is to port a code, Cosmos, developed on a main frame to the UNIX environment, to enhance the reliability and to facilitate its use to researchers in a wide area.
It is generally difficult to get high performance of Monte-Carlo simulations of cascade phenomena by using vector processors. It is also our aim to perform high speed computation not with a dedicated parallel processor but with distributed processing by ordinary workstations.
Cosmos is a versatile code for simulating and investigating the propagation of cosmic rays in the atmosphere such as the anomaly observed in atmospheric neutrinos by the Kamioka group as well as air showers in the Greisen-Zatsepin-Kuzmin cutoff region. To be able to get reliable results in such high energies, we incorporated the Landau-Pomeranchuk-Migdal effect, magnetic bremstrahlung and pair creation accurately.
The Cosmos code has been accepted by many researchers including Japan, China, USA,Canada, Brazil, India, a few countries in Europa. Cosmos has been applied to the above mentioned neutrino observation, observation of anti-protons, primary electrons, air showers at mountains such as in Tibet, Cerenkov light, Telescope Array project, etc.
Cosmos home page has been established in
http : //cpsun4.b6.kanagawa-u.ac.jp/-kasahara/
and the mailing list is aslo available.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] K.kasahara: "Introduction to Cosmos and Some Kelevauce to Uitra High Energy Cosmic Ray Air Shauers" Proc.of 24th Iut.Cosmic Ray Conf. Romc. 1. 399-402 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.kasahara: "The LPH and geomaghetic effects on the dwelopmeut of air showers in the GZK autoff vegion" Proc.of Iut.Sympo. on Extremely High Euergg Cosuic Rays. 221-230 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Kasahara: "Introduction to Cosmos and Some Relevance to Ultra High Energy Cosmic Ray Air Showers" Proc.of 24th Int.Cosmic Ray Conf.Roma. vol.1. 399-402 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Kasahara: "The LPM and geomagnetic effects on the development of air showers in the GZK cutoff region" Energy Cosmic Rays, Edited by Nagano. 221-230 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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