Many-Body Theory for Positronium-Atom Interactions.
Many-Body Theory for Positronium-Atom Interactions.
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正电子原子相互作用的多体理论。
DOI:
10.1103/physrevlett.120.183402
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发表时间:
2018
影响因子:
8.6
通讯作者:
Green DG
中科院分区:
文献类型:
--
作者:
Green DG
A many-body-theory approach has been developed to study positronium-atom interactions. As first applications, we calculate the elastic scattering and momentum-transfer cross sections and the pickoff annihilation ratefor Ps collisions with He and Ne. For He the cross section is in agreement with previous coupled-state calculations, while comparison with experiment for both atoms highlights discrepancies between various sets of measured data. In contrast, the calculated(0.13 and 0.26 for He and Ne, respectively) are in excellent agreement with the measured values.
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8.6
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