Atomic core-polarization effects in metastable hadronic helium atoms.
Atomic core-polarization effects in metastable hadronic helium atoms.
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DOI：
10.1103/physreva.45.7782
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发表时间：
1992-06
期刊：
影响因子：
--
通讯作者：
Yamazaki;Ohtsuki
中科院分区：
文献类型：
--
作者：
Yamazaki;Ohtsuki
A theoretical consideration is presented concerning the atomic core-polarization effect on the {ital E}1 transitions of large-{ital l} circular orbitals in hadronic helium atoms ({ital e}{sup {minus}}{ital X{minus}}He{sup 2+}), where the {ital e}{sup {minus}} occupies the 1{ital s} orbital and the negative hadron ({ital X}{sup {minus}}) occupies a large-{ital l} circular orbital. The first-order mixing of the 2{ital p} electron configuration due to the repulsive {ital e}{sup {minus}-}{ital X{minus}} interaction gives rise to a substantial suppression ({similar to}1/3) of the {ital E}1 transitions, compared with a single-particle estimate, since the slowly moving particle ({ital X}{sup {minus}}) polarizes the electron cloud in the opposite direction. Recently discovered metastable states of antiprotonic helium atoms are discussed.
A theoretical consideration is presented concerning the atomic core-polarization effect on the {ital E}1 transitions of large-{ital l} circular orbitals in hadronic helium atoms ({ital e}{sup {minus}}{ital X{minus}}He{sup 2+}), where the {ital e}{sup {minus}} occupies the 1{ital s} orbital and the negative hadron ({ital X}{sup {minus}}) occupies a large-{ital l} circular orbital. The first-order mixing of the 2{ital p} electron configuration due to the repulsive {ital e}{sup {minus}-}{ital X{minus}} interaction gives rise to a substantial suppression ({similar to}1/3) of the {ital E}1 transitions, compared with a single-particle estimate, since the slowly moving particle ({ital X}{sup {minus}}) polarizes the electron cloud in the opposite direction. Recently discovered metastable states of antiprotonic helium atoms are discussed.