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Title: Analytical structure of the S matrix for the coupled channel problem d + t leftrightarrow n +. alpha. and the interpretation of the J sup. pi. =3/2 sup + resonance in sup 5 He

Abstract

Using a resonance coupled channel model that provides a good description of the experimental data on the reaction {ital d}+{ital t}{leftrightarrow}{ital n}+{alpha} and {ital d}-{ital t} elastic scattering in the region of the resonance {sup 5}He(3/2{sup +}), we find the disposition of the {ital S}-matrix poles on the different Riemann sheets. An investigation of the motion of the poles with variation of the coupling strengths reveals the structure of the resonant state. The role of scattering and confined channels in the formation of the physical resonance is considered with the use of the probability sum rule for the confined channel. We demonstrate that the resonance {sup 5}He(3/2{sup +}) proves to be a coupled channel pole associated predominantly with the {ital d}-{ital t} system.

Authors:
 [1];  [2];  [3]
  1. Institute of Theoretical and Experimental Physics, Moscow, 117259 (USSR)
  2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico (USA)
  3. Kurchatov Atomic Energy Institute, Moscow, 123182 (USSR)
Publication Date:
OSTI Identifier:
5098851
Resource Type:
Journal Article
Journal Name:
Physical Review, C (Nuclear Physics); (United States)
Additional Journal Information:
Journal Volume: 44:4; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DEUTERON REACTIONS; ELASTIC SCATTERING; ONE-NUCLEON TRANSFER REACTIONS; HELIUM 4 TARGET; NEUTRON REACTIONS; HELIUM 5; RESONANCE; TRITIUM TARGET; COUPLED CHANNEL THEORY; R MATRIX; S MATRIX; SUM RULES; ALPHA DECAY RADIOISOTOPES; BARYON REACTIONS; CHARGED-PARTICLE REACTIONS; DIRECT REACTIONS; EQUATIONS; EVEN-ODD NUCLEI; HADRON REACTIONS; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; MATRICES; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; RADIOISOTOPES; SCATTERING; TARGETS; TRANSFER REACTIONS; 653003* - Nuclear Theory- Nuclear Reactions & Scattering

Citation Formats

Bogdanova, L N, Hale, G M, and Markushin, V E. Analytical structure of the S matrix for the coupled channel problem d + t leftrightarrow n +. alpha. and the interpretation of the J sup. pi. =3/2 sup + resonance in sup 5 He. United States: N. p., 1991. Web. doi:10.1103/PhysRevC.44.1289.
Bogdanova, L N, Hale, G M, & Markushin, V E. Analytical structure of the S matrix for the coupled channel problem d + t leftrightarrow n +. alpha. and the interpretation of the J sup. pi. =3/2 sup + resonance in sup 5 He. United States. doi:10.1103/PhysRevC.44.1289.
Bogdanova, L N, Hale, G M, and Markushin, V E. Tue . "Analytical structure of the S matrix for the coupled channel problem d + t leftrightarrow n +. alpha. and the interpretation of the J sup. pi. =3/2 sup + resonance in sup 5 He". United States. doi:10.1103/PhysRevC.44.1289.
@article{osti_5098851,
title = {Analytical structure of the S matrix for the coupled channel problem d + t leftrightarrow n +. alpha. and the interpretation of the J sup. pi. =3/2 sup + resonance in sup 5 He},
author = {Bogdanova, L N and Hale, G M and Markushin, V E},
abstractNote = {Using a resonance coupled channel model that provides a good description of the experimental data on the reaction {ital d}+{ital t}{leftrightarrow}{ital n}+{alpha} and {ital d}-{ital t} elastic scattering in the region of the resonance {sup 5}He(3/2{sup +}), we find the disposition of the {ital S}-matrix poles on the different Riemann sheets. An investigation of the motion of the poles with variation of the coupling strengths reveals the structure of the resonant state. The role of scattering and confined channels in the formation of the physical resonance is considered with the use of the probability sum rule for the confined channel. We demonstrate that the resonance {sup 5}He(3/2{sup +}) proves to be a coupled channel pole associated predominantly with the {ital d}-{ital t} system.},
doi = {10.1103/PhysRevC.44.1289},
journal = {Physical Review, C (Nuclear Physics); (United States)},
issn = {0556-2813},
number = ,
volume = 44:4,
place = {United States},
year = {1991},
month = {10}
}