AMS (Alpha Magnetic Spectrometer) experiment for antimatter, dark matter search on international space station alpha
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چکیده
منابع مشابه
The Alpha Magnetic Spectrometer (AMS): search for antimatter and dark matter on the International Space Station
The disappearance of cosmological antimatter and the pervasive presence of dark matter are two of the greatest puzzles in the current understanding of the universe. The Big Bang model assumes that, at its very beginning, half of the universe was made out of antimatter. The validity of this model is based on three key experimental observations: the recession of galaxies (Hubble expansion), the h...
متن کاملSearch for Antimatter in Space with the Alpha Magnetic Spectrometer
The Alpha Magnetic Spectrometer (AMS) is a state of the art particle physics experiment for the extraterrestrial study of antimatter, matter and missing matter. AMS successfully completed the precursor STS91 Discovery flight (June 2nd-12th, 1998), completing 152 orbits at ±52 of latitude and about 400 km of height, collecting more than 100 million CR events. In this paper we report on the first...
متن کاملElectron and positron fluxes in primary cosmic rays measured with the alpha magnetic spectrometer on the international space station.
Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron flux in the range 0.5 to 700 GeV and the positron flux in the range 0.5 to 500 GeV are presented. The electron flux and the positron flux each require a description beyond a single power-law spectrum. Both the electron flux and the positron flux change their behavior a...
متن کاملNew limits on dark matter annihilation from Alpha Magnetic Spectrometer cosmic ray positron data.
The Alpha Magnetic Spectrometer experiment onboard the International Space Station has recently provided cosmic ray electron and positron data with unprecedented precision in the range from 0.5 to 350 GeV. The observed rise in the positron fraction at energies above 10 GeV remains unexplained, with proposed solutions ranging from local pulsars to TeV-scale dark matter. Here, we make use of this...
متن کاملAn indirect dark matter search with diffuse gamma rays from the Galactic Centre: prospects for the Alpha Magnetic Spectrometer
A. Jacholkowska , G. Lamanna, E. Nuss, J. Bolmont, C. Adloff, J. Alcaraz, R. Battiston, P. Brun, W.J. Burger, V. Choutko , G.Coignet, A. Falvard, E. Fiandrini, L. Girard, C. Goy, K. Jedamzik, R. Kossakowski, G. Moultaka, S. Natale, J. Pochon, M. Pohl, S. Rosier-Lees, M. Sapinski, I. Sevilla Noarbe, and JP. Vialle, Laboratoire de Physique Théorique et Astroparticules, UMR5207-UM2/IN2P3-CNRS, Pla...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1997
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(97)00132-1