Induced long-range dipole-field-enhanced antihydrogen formation in the (p)over-bar+Ps(n=2)→e-+(H)over-bar(n ≤ 2) reaction -: art. no. 063401
Induced long-range dipole-field-enhanced antihydrogen formation in the (p)over-bar+Ps(n=2)→e-+(H)over-bar(n ≤ 2) reaction -: art. no. 063401
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DOI：
10.1103/physrevlett.88.063401
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发表时间：
2002-02-11
影响因子：
8.6
通讯作者：
Papp, Z
中科院分区：
文献类型：
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作者：
Hu, CY;Caballero, D;Papp, Z
我们报告了高精度的计算，通过求解Ps（n = 2）和(H) / bar （n = 3）阈值之间的修正Faddeev方程，正确地包括重排通道，其中涉及6个和8个开放通道。我们发现99%的反氢是在R（n = 2）中形成的。在Ps（n = 2）阈值之上，S、P和D部分波在最大值附近贡献了近1400pi a(0)(2)。我们发现的证据表明，诱导的远程偶极子势是负责如此大的H形成截面。讨论了利用这种共振合成低能量(H)过棒的可能性。
We report high-precision calculations that correctly include the rearrangement channels by solving the modified Faddeev equations for energies between the Ps(n = 2) and (H) over bar (n = 3) thresholds, which involve six and eight open channels. We find that 99% of the antihydrogen is formed in R(n = 2). Just above the Ps(n = 2) threshold the S, P, and D partial waves contribute nearly 1400pi a(0)(2) near the maximum. We find evidence that the induced long-range dipole potential is responsible for such a large H formation cross section. The possibility of utilizing this resonance to synthesize low-energy (H) over bar is discussed.