Nine years of cosmic rays investigation by the PAMELA experiment
2015 (English)In: Proceedings of Science, Proceedings of Science (PoS) , 2015Conference paper (Refereed)
The PAMELA cosmic ray detector was launched on June 15th of 2006 on board the Russian Resurs-DK1 satellite and during nine years of continuous data-taking it has ob- served very interesting features in cosmic rays, namely in the fluxes of protons, helium and electrons. Its discoveries might change our basic vision of the mechanisms of pro- duction, acceleration and propagation of cosmic rays in the Galaxy. Moreover, PAMELA measurements of cosmic antiproton and positron fluxes and positron-to-all-electron ratio have been setting strong constraints to the nature of Dark Matter. Measurements of boron, carbon, lithium and beryllium (together with the isotopic fraction) will also shed new light on the elemental composition of the cosmic radiation. Search for signatures of more exotic processes (such as the ones involving Strange Quark Matter) is also pursued. Furthermore, the instrument is still functional allowing a constant monitoring of the solar activity during its maximum and a detailed and prolonged study of the solar modulation, improving the comprehension of the heliosphere mechanisms. PAMELA is also measur- ing the radiation environment around the Earth, and it detected for the first time the presence of an antiproton radiation belt surrounding our planet. In this highlight paper PAMELA main results will be reviewed.
Place, publisher, year, edition, pages
Proceedings of Science (PoS) , 2015.
IdentifiersURN: urn:nbn:se:kth:diva-194736ScopusID: 2-s2.0-84988696698OAI: oai:DiVA.org:kth-194736DiVA: diva2:1047448
34th International Cosmic Ray Conference, ICRC 2015, 30 July 2015 through 6 August 2015
QC 201611172016-11-172016-10-312016-11-17Bibliographically approved