Mesonic and nonmesonic absorption of kaon in nuclear matter and {Lambda}(1405) doorway process

Journal Article · Tue Dec 28 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3542001· OSTI ID:21511385

Sekihara, T ^[1]; Yamagata-Sekihara, J ^[2]; Jido, D ^[3]; Kanada-En'yo, Y ^[1]

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1. Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)
2. Departamento de Fisica Teorica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigacion de Paterna, Aptdo. 22085, 46071 Valencia (Spain)
3. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)

The mesonic and nonmesonic absorptions of kaon into nuclear systems are investigated from a viewpoint of {Lambda}(1405) doorway process. Using a one-meson exchange model in the calculation of the nonmesonic {Lambda}(1405)N{yields}YN transition and using the chiral unitary approach for the description of the {Lambda}(1405), we obtain the nonmesonic transition ratio {Gamma}{sub {Lambda}N}/{Gamma}{sub {Sigma}}{sup 0}{sub N{approx_equal}}1.2 which is almost independent of the nucleon density, and find the total nonmesonic decay width of the {Lambda}(1405) in uniform nuclear matter to be 22 MeV at the normal density. We also calculate the absorption for stopped K{sup -} in nuclear matter, and find that the ''formation rate'' of {Lambda}(1405) is important for the density dependence and the absolute value of the absorption potential of kaon in nuclear matter.

• OSTI ID: 21511385
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1322; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ABSORPTION
ATOMS
BARYONS
BOSON-EXCHANGE MODELS
BOSONS
CHIRALITY
COMPUTERIZED SIMULATION
DECAY
DENSITY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONIC ATOMS
HADRONS
HYPERONS
KAONS
KAONS MINUS
LAMBDA BARYONS
LAMBDA-1405 BARYONS
MATHEMATICAL MODELS
MATTER
MESIC ATOMS
MESONS
MEV RANGE
MEV RANGE 10-100
NUCLEAR MATTER
NUCLEONS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PERIPHERAL MODELS
PHYSICAL PROPERTIES
PSEUDOSCALAR MESONS
SIMULATION
SORPTION
STRANGE MESONS
STRANGE PARTICLES
SYMMETRY