LARGE ATOMIC and NUCLEAR THREE-BODY SYSTEMS: SCATTERING and BINDING
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
30/04/2009
|
Resumo |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The universal character of non-relativistic large three-body bosonic systems is addressed, with focus on highly interesting situations that occur in low-energy nuclear and atomic physics. Investigations on the trajectory of the first excited Efimov state, in are normalized zero-range three-body model for a system with two bound and one virtual two-body sub systems, are reported. The approach is applied to n-n-(18)C, where the n-n virtual energy and the three-body ground state are kept fixed. It is shown that the real part of the elastics wave phase-shift (delta(R)(0)) presents a zero, or a pole in k cot delta(R)(0), when the system has an Efimov excited or virtual state. A brief discussion is given on the relevance of the approach for ultracold atom physics with tunable scattering lengths. |
Formato |
998-1004 |
Identificador |
Modern Physics Letters A. Singapore: World Scientific Publ Co Pte Ltd, v. 24, n. 11-13, p. 998-1004, 2009. 0217-7323 http://hdl.handle.net/11449/24284 WOS:000266039300045 |
Idioma(s) |
eng |
Publicador |
World Scientific Publ Co Pte Ltd |
Relação |
Modern Physics Letters A |
Direitos |
closedAccess |
Palavras-Chave | #Few-body systems #halo features #wave equations and bound-states #Bose-Einstein condensation |
Tipo |
info:eu-repo/semantics/article |