Positrons and electrons in primary cosmic rays as measured in the PAMELA experiment

• The PAMELA experiment is being carried out on board the Russian satellite Resurs DK1 placed in the near-earth near-polar orbit on June 15, 2006. The apparatus comprising a silicon-strip magnetic spectrometer and an electromagnetic calorimeter allows measurement of electron and positron fluxes in cosmic rays in a wide energy interval from ∼100 MeV to hundreds of GeV. The high-energy electron and positron separation technique is discussed and the data on positron-to-electron ratio in primary cosmic rays up to E ≃ 10 GeV from the 2006 - 2007 measurements are reported in this work.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

Electromagnetic calorimeter

Energy interval

High-energy electron

Magnetic spectrometers

Near-Earth

Polar orbit

Primary cosmic rays

Separation techniques

Publication and Content Type

ref (subject category)

art (subject category)