Separable expansions for virtual states and resonances

Journal Article · Fri Apr 01 04:00:00 EST 1983 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.27.1826· OSTI ID:5906449

Adhikari, S K; Fonseca, A C; Tomio, L

Finite rank expansions for two- and three-body t matrices are analytically continued to the unphysical sheet of the complex energy plane associated with the lowest two-body scattering threshold in order to obtain the position and residue of the virtual state and resonance poles. The present method is applied to study the /sup 1/S/sub 0/ virtual state of two nucleons, the Efimov virtual states of three identical bosons, and the doublet virtual state of three nucleons.

• Research Organization: Departamento de Fisica, Universidade Federal de Pernambuco, 50.000 Recife, Pe, Brazil
• OSTI ID: 5906449
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 27:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXCITATION FUNCTIONS
FUNCTIONS
HEAVY ION REACTIONS
INELASTIC SCATTERING
ISOTOPES
LIGHT NUCLEI
MAGNESIUM 24
MAGNESIUM 24 TARGET
MAGNESIUM ISOTOPES
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEI
OXYGEN 16 REACTIONS
PARITY
PARTICLE PROPERTIES
RESONANCE
SCATTERING
SPIN
STABLE ISOTOPES
TARGETS