Theoretical investigations of L-shellΔn=1(2s→31)and 2(2s→41)as well as K-shellΔn=1(1s→21)electronion resonant recombination for both the ground state(2s^(2)^(1)S0)and the long-lived metastable state(2s2p^(3)P0)of...Theoretical investigations of L-shellΔn=1(2s→31)and 2(2s→41)as well as K-shellΔn=1(1s→21)electronion resonant recombination for both the ground state(2s^(2)^(1)S0)and the long-lived metastable state(2s2p^(3)P0)of Be-like Si^(10+)are performed.The calculations include not only the dominant dielectronic recombination(DR),but also highorder trielectronic(TR)and quadruelectronic recombination(QR)processes.Level-by-level calculations are performed for resonance energies and resonance strengths using the relativistic configuration interaction method.The theoretical rate coefficients are presented and compared with the experimental results measured at the heavy-ion storage ring TSR.When considering fractional populations of 93%and 7%for the ground state 2s^(2)^(1)S0 and the metastable state 2s2p^(3)P0,the present rate coefficients agree well with the experimental measurements.The contributions of TR are important,which is about 9.26%to the total rate coefficient of L-shell recombination.The plasma rate coefficients are also calculated,and an analytical formula is presented for convenient modeling of as trophy sical and fusion plasmas.展开更多
基金Project supported by the National Key Research and Development Program of China(Grant No.2022YFA1602500)the National Natural Science Foundation of China(Grant Nos.12064041,11874051,12104373,12374384,and 12464036)+2 种基金Central Leading Local Science and Technology Development Fund Projects(Grant No.23ZYQA293)funds for Innovative Fundamental Research Group Project of Gansu Province(Grant No.20JR5RA541)Research and Innovation Project of Gansu University of Political Science and Law(Grant No.GZF2025XQN18)。
文摘Theoretical investigations of L-shellΔn=1(2s→31)and 2(2s→41)as well as K-shellΔn=1(1s→21)electronion resonant recombination for both the ground state(2s^(2)^(1)S0)and the long-lived metastable state(2s2p^(3)P0)of Be-like Si^(10+)are performed.The calculations include not only the dominant dielectronic recombination(DR),but also highorder trielectronic(TR)and quadruelectronic recombination(QR)processes.Level-by-level calculations are performed for resonance energies and resonance strengths using the relativistic configuration interaction method.The theoretical rate coefficients are presented and compared with the experimental results measured at the heavy-ion storage ring TSR.When considering fractional populations of 93%and 7%for the ground state 2s^(2)^(1)S0 and the metastable state 2s2p^(3)P0,the present rate coefficients agree well with the experimental measurements.The contributions of TR are important,which is about 9.26%to the total rate coefficient of L-shell recombination.The plasma rate coefficients are also calculated,and an analytical formula is presented for convenient modeling of as trophy sical and fusion plasmas.
