摘要
A method of identifying positron/electron species from the cosmic rays was studied in the DArk Matter Particle Explorer(DAMPE)experiment.As there is no onboard magnet on the satellite,the different features imposed by the geomagnetic field on these two species were exploited for the particle identification.Application of this method to the simulation of on-orbit electrons/positrons/protons and the real flight data proves that separately measuring the CR positrons/electrons with DAMPE is feasible,though limited by the field of view for the present observation data.Further analysis on the positron flux with this method can be expected in the future.
基金
supported by the Outstanding Youth Science Foundation of NSFC(Grant No.12022503)
the Joint Funds of the National Natural Science Foundation of China(Grant Nos.U1738208,U1738139,U1738135 and U1738207)
the National Natural Science Foundation of China(Grant Nos.11673021,11705197,11773085 and 11851302)
the National Key Research and Development Program of China(Grant No.2016YFA0400200)
Youth Innovation Promotion Association CAS(Grant No.2021450)。
