Virtual state of the three nucleon system

Journal Article · Thu Mar 01 04:00:00 EST 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.19.579· OSTI ID:6134294

Girard, B A; Fuda, M G

The existence of a virtual state of the three nucleon system is established on the basis of three different analyses. Values for its pole position and residue in the doublet, s-wave, n-d elastic scattering amplitude, are obtained from a fit to the experimental data, from partial wave dispersion relations, and from an exact three-particle, separable potential calculation. The calculations indicate that these parameters are determined mainly by the one-nucleon exchange mechanism and the doublet scattering length a/sub 2/. For a/sub 2/ = 0.65 fm our best calculation gives an energy of 0.482 MeV below the elastic threshold, on the second Riemann sheet, and a residue parameter C/sub v//sup 2/ = 0.0504, where C/sub v//sup 2/ is defined in analogy to the triton asymptotic normalization parameter.

• Research Organization: Department of Physics and Astronomy, State University of New York at Buffalo, Amherst, New York 14260
• OSTI ID: 6134294
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 19:3; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
BARYON-BARYON INTERACTIONS
BARYONS
CHARGED PARTICLES
DISPERSION RELATIONS
ELASTIC SCATTERING
ELEMENTARY PARTICLES
ENERGY LEVELS
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MANY-BODY PROBLEM
NEUTRON-DEUTERON INTERACTIONS
NUCLEON-DEUTERON INTERACTIONS
NUCLEONS
PARTIAL WAVES
PARTICLE INTERACTIONS
S WAVES
SCATTERING
SCATTERING AMPLITUDES
THREE-BODY PROBLEM
TRITONS
UNITARITY
VIRTUAL STATES