S -matrix poles and phase shifts for N. Delta. scattering

Journal Article · Wed Apr 01 04:00:00 EST 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.45.R1424· OSTI ID:7235226

Hoshizaki, N ^[1]

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1. Department of Nuclear Engineering, Kyoto University, Kyoto 606 (Japan)

Threshold behavior of {ital S}-wave phase shifts is studied for {ital N}{Delta} scattering with a nearby {ital S}-matrix pole. The phase {delta}{sub {ital N}{Delta}} for {ital pp}({sup 1}{ital D}{sub 2}){r arrow}{ital D}{Delta}({sup 5}{ital S}{sub 2}) obtained by experiments for {ital pp}{r arrow}{ital np}{pi}{sup +} are explained on the basis of the pole of unstable bound state type or broad dibaryon, ({ital M}=2144 MeV, {ital I}=1, {ital J}{sup {ital P}}=2{sup +}), by taking into account instability of the {Delta}, {ital NN} final-state interaction for {ital N}{Delta}{r arrow}{ital np}{pi}{sup +} and a factor {ital i} due to {ital p}-wave pion emission. This pole explains also the {sup 1}{ital D}{sub 2} phase parameters for {ital pp}{r arrow}{ital pp} around 2144 MeV in {radical}{ital s} .

• OSTI ID: 7235226
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 45:4; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

662410 -- Properties of Baryons & Baryon Resonances-- (1992-)
663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BARYONS
DATA
DELTA BARYONS
DIBARYONS
ELEMENTARY PARTICLES
FERMIONS
FINAL-STATE INTERACTIONS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INELASTIC SCATTERING
INFORMATION
INTERACTIONS
MATRICES
N BARYONS
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUMERICAL DATA
PARTIAL WAVES
PARTICLE INTERACTIONS
PHASE SHIFT
S MATRIX
S WAVES
SCATTERING
THEORETICAL DATA