Propagation of cosmic rays in the AMS-02 era

Abstract

In this work we use the newly reported Boron-to-Carbon ratio (B/C) from AMS-02 and the time-dependent proton fluxes from PAMELA and AMS-02 to constrain the source and propagation parameters of cosmic rays in the Milky Way. A linear correlation of the solar modulation parameter with solar activities is assumed to account for the time-varying cosmic ray fluxes. A comprehensive set of propagation models, with/without reacceleration or convection, have been discussed and compared. We find that only the models with reacceleration can self-consistently fit both the proton and B/C data. The rigidity dependence slope of the diffusion coefficient, $\delta$, is found to be about $0.38-0.50$ for the diffusion-reacceleration models. The plain diffusion and diffusion-convection models fit the data poorly. We compare different model predictions of the positron and antiproton fluxes with the data. We find that the diffusion-reacceleration models over-produce low energy positrons, while non-reacceleration models give better fit to the data. As for antiprotons, reacceleration models tend to under-predict low energy antiproton fluxes, unless a phenomenological modification of the velocity-dependence of the diffusion coefficient is applied. Our results suggest that there could be important differences of the propagation for nuclei and leptons, in either the Milky Way or the solar heliosphere.

17 pages, 12 figures and 3 tables; published in Phys. Rev. D

References in corpus (13)

• Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
• Discrepant hardening observed in cosmic-ray elemental spectra
• Parameterization of Gamma, e^+/- and Neutrino Spectra Produced by p-p Interaction in Astronomical Environment
• Galactic secondary positron flux at the Earth
• Origin of the Cosmic Ray Spectral Hardening
• Cosmic Ray Electrons, Positrons and the Synchrotron emission of the Galaxy: consistent analysis and implications
• Quantitative study of the AMS-02 electron/positron spectra: implications for the pulsar and dark matter properties
• What Does The PAMELA Antiproton Spectrum Tell Us About Dark Matter?
• Galactic cosmic-ray propagation in the light of AMS-02: I. Analysis of protons, helium, and antiprotons
• Low energy cosmic ray positron fraction explained by charge-sign dependent solar modulation
• A Markov Chain Monte Carlo for Galactic Cosmic Ray physics: I. Method and results for the Leaky Box Model
• The boron-to-carbon abundance ratio and Galactic propagation of cosmic radiation
• Systematic study of the uncertainties in fitting the cosmic positron data by AMS-02

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