Cosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01

2007307 citationsJournal Articlehybrid Open Access

Authors

M. Aguilar · Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas

J. Alcaraz Maestre · Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas

J. Allaby · European Organization for Nuclear Research

B. Alpat · University of Perugia

G. Ambrosi · University of Perugia

H. Anderhub · Board of the Swiss Federal Institutes of Technology

L. Ao

Abstract

A measurement of the cosmic ray positron fraction e+/(e++e−) in the energy range of 1–30 GeV is presented. The measurement is based on data taken by the AMS-01 experiment during its 10 day Space Shuttle flight in June 1998. A proton background suppression on the order of 106 is reached by identifying converted bremsstrahlung photons emitted from positrons.

Topics & Keywords

Dark Matter and Cosmic Phenomena Astrophysics and Cosmic Phenomena Solar and Space Plasma Dynamics

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Physics Letters B

Volume 646, Issue 4, pp. 145-154

DOI: 10.1016/j.physletb.2007.01.024

Field-Weighted Citation Impact: 85.30