Universal Physics of 2+1 Particles with Non-Zero Angular Momentum
Universal Physics of 2+1 Particles with Non-Zero Angular Momentum
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DOI：
10.1007/s00601-011-0229-6
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发表时间：
2011-03
期刊：
影响因子：
1.6
通讯作者：
Shimpei Endo;P. Naidon;Masahito Ueda
中科院分区：
文献类型：
--
作者：
Shimpei Endo;P. Naidon;Masahito Ueda
研究了任意散射角动量下粒子与含有相同粒子的二聚体之间散射的零能普适性质。为此，我们导出了一个积分方程，它将Skorniakov-Ter-Martrosian方程推广到角动量为非零时的情形。当粒子之间的质量比不同时，我们发现了不同的散射共振，这可以归因于在碰撞阈值处出现通用三聚体和Efimov三聚体。
The zero-energy universal properties of scattering between a particle and a dimer that involves an identical particle are investigated for arbitrary scattering angular momenta. For this purpose, we derive an integral equation that generalises the Skorniakov–Ter-Martirosian equation to the case of non-zero angular momentum. As the mass ratio between the particles is varied, we find various scattering resonances that can be attributed to the appearance of universal trimers and Efimov trimers at the collisional threshold.