Astronomy and Astrophysics – Astrophysics
Scientific paper
1995-05-30
Phys.Rev.Lett. 75 (1995) 390-393
Astronomy and Astrophysics
Astrophysics
14 pages, 3 figures, tarred-compressed-uuencoded-postscript file; heatprl_preprint.tar_z (227 kbytes); Physical Review Letters
Scientific paper
We present a new measurement of the cosmic-ray positron fraction e+/(e+ + e-) obtained from the first balloon flight of the High Energy Antimatter Telescope (HEAT). Using a magnet spectrometer combined with a transition radiation detector, an electromagnetic calorimeter, and time-of-flight counters we have achieved a high degree of background rejection. Our results do not indicate a major contribution to the positron flux from primary sources. In particular, we see no evidence for the significant rise in the positron fraction at energies above ~10 GeV previously reported.
No associations
LandOfFree
Cosmic Ray Positrons at High Energies: A New Measurement does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Cosmic Ray Positrons at High Energies: A New Measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic Ray Positrons at High Energies: A New Measurement will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-315520