- Roberta Sparvoli (ROMA2)
Matteo Martucci (ROMA2)
For nearly ten years, from 2006 to 2016, PAMELA (a Payload for Antimatter-Matter Exploration and Light-nuclei Astrophysics) has been making high-precision measurements of the charged component of the cosmic radiation opening a new era of precision studies in cosmic-ray physics. The measured antiparticle component of the cosmic radiation shows features that can be interpreted in terms of dark...
169. Solar modulation of the helium nuclei during the period from 2006 to 2014 with the PAMELA space experiment
Nadir Marcelli (ROMA2)
Precision measurements of the Z = 2 component in the cosmic radiation provide crucial information about the origin and propagation of the second most abundant hadronic species in cosmic rays inside the Galaxy. Moreover, the solar modulation of light-nuclei like helium can be compared to the widely studied modulation of protons, to spot possible dependencies on charge and mass; such nuclei...
161. New solar modulation modeling of the galactic proton measured by the AMS02 and PAMELA experiments
Emanuele Fiandrini (PG)
The flux of Galactic Cosmic Rays near Earth is not representative of the Local Interstellar Spectrum at energies below ~30 GeV due to a variety of physical processes arising in their propagation through the heliosphere. The changes in the GCR intensities and energy spectra are related to the solar activity, and are referred to as CR solar modulation. A thorough understanding of solar effects...
151. Observation of the Energy Dependence of Primary and Secondary Cosmic Rays with the AMS Detector on the International Space Station
Valerio Formato (PG)
Precision study of cosmic nuclei provides detailed knowledge on the origin and propagation of cosmic rays. AMS is a multi-purpose high energy particle detector designed to measure and identify cosmic ray nuclei with unprecedented precision. It is able to provide precision studies of nuclei simultaneously to multi-TeV energies. In 7 years on the Space Station, AMS has collected more than 120...
152. Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station
Francesco Nozzoli (TIFP)
The fluxes and flux ratios of charged elementary particles in cosmic rays are presented in the absolute rigidity range from 1 to 1000 GV. In the absolute rigidity range ∼60 to ∼500 GV, the antiproton, proton, and positron fluxes are found to have nearly identical rigidity dependence and the electron flux exhibits different rigidity dependence. Below 60 GV, the antiproton-to-proton,...
156. Precision Measurement of the Monthly Cosmic Ray Fluxes with the Alpha Magnetic Spectrometer on the ISS
maura graziani (KIT, Karlsruher Institut für Technologie)
The precision measurements of the monthly cosmic ray fluxes with Alpha Magnetic Spectrometer on the International Space Station are presented. Individual electron, positron, proton and helium spectra have been measured for each Bartel's rotation period (27 days) in the time range from May 2011 to May 2017. This period covers the ascending phase of solar cycle # 24 together with the reversal of...