Associated strangeness production in the pp{yields}pK{sup +}K{sup -}p and pp{yields}pK{sup +{pi}0{Sigma}0} reactions

Journal Article · Sun Aug 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.025210· OSTI ID:21419466

Jujun, Xie ^[1]; Wilkin, Colin ^[2]

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1. Instituto de Fisica Corpuscular (IFIC), Centro Mixto CSIC-Universidad de Valencia, Institutos de Investigacion de Paterna, Aptd. 22085, E-46071 Valencia (Spain)
2. Physics and Astronomy Department, UCL, London WC1E 6BT (United Kingdom)

The total and differential cross sections for associated strangeness production in the pp{yields}pK{sup +}K{sup -}p and pp{yields}pK{sup +{pi}0{Sigma}0} reactions have been studied in a unified approach using an effective Lagrangian model. It is assumed that both the K{sup -}p and {pi}{sup 0{Sigma}0} final states originate from the decay of the {Lambda}(1405) that was formed in the production chain pp{yields}p(N*(1535){yields}K{sup +{Lambda}}(1405)). The available experimental data are well reproduced, especially the ratio of the two total cross sections, which is much less sensitive to the particular model of the entrance channel. The significant coupling of the N*(1535) to {Lambda}(1405)K is further evidence for large ss-bar components in the quark wave function of the N*(1535).

• OSTI ID: 21419466
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 82, Issue 2; Other Information: DOI: 10.1103/PhysRevC.82.025210; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COUPLING
DIFFERENTIAL CROSS SECTIONS
KAONS MINUS
KAONS PLUS
LAGRANGIAN FUNCTION
LAMBDA-1405 BARYONS
N-1535 BARYONS
PARTICLE DECAY
PARTICLE PRODUCTION
PIONS
PIONS NEUTRAL
PROTON-PROTON INTERACTIONS
QUARKS
SIGMA NEUTRAL PARTICLES
STRANGENESS
TOTAL CROSS SECTIONS
WAVE FUNCTIONS
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CROSS SECTIONS
DECAY
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INTERACTIONS
KAONS
LAMBDA BARYONS
MESONS
N BARYONS
N*BARYONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PROTON-NUCLEON INTERACTIONS
PSEUDOSCALAR MESONS
SIGMA BARYONS
SIGMA PARTICLES
STRANGE MESONS
STRANGE PARTICLES