Kcotδ poles and their interconnection with bound and virtual levelsстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Местоположение издательства:Road Town, United Kingdom
Первая страница:750
Последняя страница:754
Аннотация:The general behavior of the kcotδ-pole trajectories at negative energy is investigated in the two-body model with a Yukawa-type potential. It is shown that dynamical singularities, pole and zero (kcotδ pole) trajectories of the partial scattering amplitude, intersect at points (triple crossings) that are mirror-symmetric with respect to the zero-momentum axis. An explanation is given for the rarity of the kcotδ-pole phenomenon, which is known for the doublet nd system.