title: Dynamic properties of the energy loss of multi-MeV charged particles traveling in two-component warm dense plasmas.
abstract: The energy loss of multi-MeV charged particles moving in two-component warm dense plasmas (WDPs) is studied theoretically beyond the random-phase approximation. The short-range correlations between particles are taken into account via dynamic local field corrections (DLFC) in a Mermin dielectric function for two-component plasmas. The mean ionization states are obtained by employing the detailed configuration accounting model. The Yukawa-type effective potential is used to derive the DLFC. Numerically, the DLFC are obtained via self-consistent iterative operations. We find that the DLFC are significant around the maximum of the stopping power. Furthermore, by using the two-component extended Mermin dielectric function model including the DLFC, the energy loss of a proton with an initial energy of ∼15 MeV passing through a WDP of beryllium with an electronic density around the solid value n_{e}≈3×10^{23}cm^{-3} and with temperature around ∼40 eV is estimated numerically. The numerical result is reasonably consistent with the experimental observations [A. B. Zylsta et al., Phys. Rev. Lett. 111, 215002 (2013)PRLTAO0031-900710.1103/PhysRevLett.111.215002]. Our results show that the partial ionization and the dynamic properties should be of importance for the stopping of charged particles moving in the WDP.
authors.affiliation: Center for Fusion Energy Science and Technology, CAEP, P.O. Box 8009, Beijing 100088, China.|Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China.
authors.forename: Zhen-Guo
authors.initials: ZG
authors.lastname: Fu
authors.affiliation: Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Center for Fusion Energy Science and Technology, CAEP, P.O. Box 8009, Beijing 100088, China.|Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China.
authors.forename: Meng-Lei
authors.initials: ML
authors.lastname: Li
authors.affiliation: Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China.
authors.forename: Da-Fang
authors.initials: DF
authors.lastname: Li
authors.affiliation: HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Kang
authors.affiliation: Center for Fusion Energy Science and Technology, CAEP, P.O. Box 8009, Beijing 100088, China.|Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China.|HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China.|Center for Compression Science, CAEP, Mianyang 621900, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Zhang