Energy attraction and width repulsion due to external mixing and an application to 8Be

Autor:	Peter von Brentano
Rok vydání:	1992
Předmět:	Physics Nuclear and High Energy Physics symbols.namesake Quantum electrodynamics Diagonal symbols Hamiltonian (quantum mechanics) Attraction
Zdroj:	Nuclear Physics A. 550:143-149
ISSN:	0375-9474
DOI:	10.1016/0375-9474(92)91135-c
Popis:	It is shown that the effective hamiltonian of a system of two unbound states with only one open reaction channel can be decomposed in a natural and unique way into a diagonal “unperturbed” effective hamiltonian and an off-diagonal interaction, which is either real or imaginary. Due to the imaginary interaction the complex energies of the “perturbed” hamiltonian exhibit energy attraction and width repulsion as compared to the energies of the “unperturbed” hamiltonian. An application to a doublet in 8 Be is given.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::329e2a0ea347e61177688518db215661 https://doi.org/10.1016/0375-9474(92)91135-c Zobrazit plný text záznamu