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Binding energies and structures of Ca-He 2 weakly bound triatomic complexes

AuthorsLópez Durán, David; Rodríguez-Cantano, Rocío ; González-Lezana, Tomás ; Delgado Barrio, Gerardo ; Villarreal, Pablo ; Gianturco, Franco Antonio
Keywords[PACS] Bond strengths, dissociation energies
[PACS] Stereochemistry
[PACS] General molecular conformation and symmetry
[PACS] High-precision calculations for few-electron (or few-body) atomic systems
Issue Date1-Aug-2012
PublisherAmerican Physical Society
CitationPhysical review A 86: 022501 (2012)
AbstractBound states of 40Ca-nHe 2, n=3,4, triatomic complexes are investigated. The potential-energy surface, represented as the addition of atomic-pair interactions, is that recently used to study these systems by Gou and Li, Phys. Rev. APLRAAN1050-294710.1103/PhysRevA.85.012510 85, 012510 (2012). The results obtained from three different methods, in fair agreement, profoundly disagree with those reported in the reference above. In addition, we address the feasibility of two Ca-He interactions existing in the literature by analyzing the characteristics of their ground and excited vibrorotational states. To this end, simulated absorption spectra in the region of microwaves are also presented and discussed. © 2012 American Physical Society.
Identifiersdoi: 10.1103/PhysRevA.86.022501
issn: 1050-2947
Appears in Collections:(CFMAC-IFF) Artículos
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