Time dependence of the helium flux measured by PAMELA

Panico, Beatrice; Campana, D.; Osteria, G.; Barbarino, G. C; Adriani, Oscar; Bongi, Massimo; Spillantini, P.; Mori, N.; Papini, P.; Vannuccini, E.; Bazilevskaya, G. A; Kvashnin, A. N; Stozhkov, Y. I; Bellotti, R.; Monaco, A.; Bruno, A.; Cafagna, Francesco; Boezio, Mirko; Bonvicini, V.; Mocchiutti, E.; Vacchi, A.; Zampa, G.; Zampa, N.; Bogomolov, E. A; Krutkov, S. Y; Vasilyev, G. I; Carlson, P.; Pearce, M.; Casolino, M.; Castellini, Guido; Marcelli, Laura; De Santis, C.; Mergé, M.; Picozza, P.; Sparvoli, R.; Munini, Riccardo; Galper, A. M; Karelin, A. V; Koldashov, S. V; Koldobskiy, S.; Yurkin, Y. T; Malakhov, V.; Leonov, A.; Mayorov, A. G; Mikhailov, V. V; Voronov, S. A; Martucci, M.; Menn, W.; Simon, M.; Ricci, Marco; Ricciarini, Sergio B.

doi:10.22323/1.314.0021

Volume 314 - The European Physical Society Conference on High Energy Physics (EPS-HEP2017) - Astroparticle Physics (Parallel Session). Conveners: Teresa Montaruli; Simona Murgia; Pasquale Serpico. Scientific Secretary: Michele Doro.

Time dependence of the helium flux measured by PAMELA

B. Panico*, D. Campana, G. Osteria, G.C. Barbarino, O. Adriani, M. Bongi, P. Spillantini, N. Mori, P. Papini, E. Vannuccini, G.A. Bazilevskaya, A.N. Kvashnin, Y.I. Stozhkov, R. Bellotti, A. Monaco, A. Bruno, F. Cafagna, M. Boezio, V. Bonvicini, E. Mocchiutti, A. Vacchi, G. Zampa, N. Zampa, E.A. Bogomolov, S.Y. Krutkov, G.I. Vasilyev, P. Carlson, M. Pearce, M. Casolino, G. Castellini, L. Marcelli, C. De Santis, M. Mergé, P. Picozza, R. Sparvoli, R. Munini, A.M. Galper, A.V. Karelin, S.V. Koldashov, S. Koldobskiy, Y.T. Yurkin, V. Malakhov, A. Leonov, A.G. Mayorov, V.V. Mikhailov, S.A. Voronov, M. Martucci, W. Menn, M. Simon, M. Ricci and S.B. Ricciariniet al. (click to show)

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Pre-published on: November 05, 2017

Published on: March 20, 2018

Abstract

The energy spectra of galactic cosmic rays carry fundamental information regarding their origin and propagation, but, near Earth,
cosmic rays are significantly affected by the solar magnetic field which changes over time. The time dependence of proton and electron spectra
were measured from July 2006 to December 2009 by PAMELA experiment, that is a ballooon-borne experiment collecting data since 15 June 2006.
These studies allowed to obtain a more complete description of the cosmic radiation,
providing fundamental information about the transport and modulation of cosmic rays inside the heliosphere. In this talk the study of the
time dependence of the cosmic-ray protons and helium nuclei from the unusual 23rd solar minimum through the following period of solar maximum activity is presented.

DOI: https://doi.org/10.22323/1.314.0021

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