Published December 1979 | Version v1
Journal article Metadata-only

Partial-wave analysis of the K-p→Λπ+π- reaction in the range of Λ (1520) resonance

Creators

  • 1. Gosudarstvennyj Komitet po Ispol'zovaniyu Atomnoj Ehnergii SSSR, Serpukhov. Inst. Fiziki Vysokikh Ehnergij
  • 2. Joint Inst. for Nuclear Research, Dubna (USSR)
  • 3. Vsesoyuznyj Nauchno-Issledovatel'skij Inst. Fiziko-Tekhnicheskikh i Radiotekhnicheskikh Izmerenij, Moscow (USSR)

Description

The partial-wave analysis of the K-p→Λπ+π- reaction in the Λ(1520)-resonance range is carried out taking into account the triangular diagram. The partial decay widths of the Λ(1520) resonance in the channels of Λ(1520)→Σ(1385)π and Λ(1520)→Λππ have been obtained. The angle of the SU(3)-singlet mixing with the isoscalar component of the octet (J)sup(P)=(3/2)sup(-) is estimated. The allowed values of the mixing angle 13 deg <=THETA<=35 deg are consistent with the SU(3) predictions. The upper limit on the ππ-scattering S-wave length a00 is calculated. The value a00<=0.21 (h/2π/μsub(π)c) is at 95% confidence level

Additional details

Additional titles

Original title (Russian)
Парциально-волновой анализ реакции К

Publishing Information

Journal Title
Yad. Fiz.
Journal Volume
30
Journal Issue
12
Series
Yad. Fiz.
Journal Page Range
1534-1547
ISSN
0044-0027

INIS

Country of Publication
Russian Federation
Country of Input or Organization
USSR
INIS RN
11542719
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
AMPLITUDES; CROSS SECTIONS; FEYNMAN DIAGRAM; ISOBAR MODEL; KAON MINUS-PROTON INTERACTIONS; LAMBDA-1520 RESONANCES; MEV RANGE 100-1000; MIXING RATIO; PIONS MINUS; PIONS PLUS; S WAVES; SIGMA-1385 RESONANCES; SU-3 GROUPS
Descriptors DEC
ANTIMATTER; ANTIMESONS; ANTIPARTICLES; BARYON RESONANCES; BARYONS; BOSONS; DIAGRAMS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRON-HADRON INTERACTIONS; HADRONS; INFORMATION; INTERACTIONS; KAON-NUCLEON INTERACTIONS; KAON-PROTON INTERACTIONS; LIE GROUPS; MATHEMATICAL MODELS; MATTER; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; MESONS; MEV RANGE; PARTIAL WAVES; PARTICLE INTERACTIONS; PARTICLE MODELS; PIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; RESONANCE PARTICLES; SU GROUPS; SYMMETRY GROUPS; Y*RESONANCES

Optional Information

Notes
For English translation see the journal Soviet Journal of Nuclear Physics (USA).