Jul 12 – 23, 2021
Online
Europe/Berlin timezone

Cosmic Ray Helium spectrum measured by the DAMPE experiment

Jul 14, 2021, 6:00 PM
1h 30m
06

06

Talk CRD | Cosmic Ray Direct Discussion

Speaker

Dr Margherita Di Santo (Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L’Aquila, Italy )

Description

DAMPE (DArk Matter Particle Explorer) is a Space mission project promoted by the Chinese Academy of Sciences (CAS), in collaboration with Universities and Institutes from China, Italy and Switzerland. The satellite hosting the DAMPE detector has been successfully launched on December 17th, 2015, and is currently collecting data in a stable way. The main goals of the mission are: indirect search of Dark Matter, looking for signatures in the electron and photon spectra with energies up to 10 TeV; high energy gamma-ray astronomy; analysis of the flux and composition of primary Cosmic Rays (CR) in the energy range from few tens of GeV up to hundreds of TeV. In this work we present the latest result on the CR Helium spectrum measured by DAMPE and discuss the observed features in the light of the current models about the origin, acceleration and propagation of galactic Cosmic Rays. The outcome is validated through independent analyses performed inside the DAMPE Collaboration, which give consistent results within the overall uncertainties.

Keywords

Cosmic Rays, CR Direct detection, CR Helium flux, Space experiments

Collaboration DAMPE
Subcategory Experimental Results

Primary author

Dr Margherita Di Santo (Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L’Aquila, Italy )

Co-authors

Dr Antonio Surdo (Istituto Nazionale di Fisica Nucleare (INFN) - Sezione di Lecce, I-73100, Lecce, Italy) Pengxiong Ma (Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China) Chuan Yue (Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China) Dr Yapeng Zhang (Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China) For the DAMPE Collaboration

Presentation materials