“…Since the AMS02 measurements cover a complex polarity reversal period in Heliospheric magnetic field (HMF) for which the solar effect is difficult to model, we only deal with the AMS02 data [21][22][23][24][25][26] (including p, He, C, p/p, Li/C, Be/C, B/C) with energies larger than 20 GeV. On the contrary, no cut is performed on the PAMELA data [28][29][30][31] (including p, He, C, p/p, 2 H/ 4 He, 3 He/ 4 He, B/C), since the PAMELA data was collected during a solar minimum period from 2006 to 2008, and the solar modulation during this period is simpler and easier to describe. We also employ the low-energy B/C and C data measured by ACE-CRIS [54] during the same observational time of PAMELA.…”