Inclusive study of strange-particle production in pp interactions at 405 GeV/c

Journal Article · Sun Jul 01 04:00:00 EDT 1979 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.20.37· OSTI ID:6128146

Kichimi, H; Fukawa, M; Kabe, S; Ochiai, F; Sugahara, R; Suzuki, A; Yoshimura, Y; Takahashi, K; Okusawa, T; Tanahashi, K; Teranaka, M; Kusumoto, O; Konishi, T; Okabe, H; Yokota, J

We have studied inclusive K/sup 0//sub S/, ..lambda.., and Lambda-bar production and strange-resonance production in the reactions pp ..-->.. (K/sup 0//sub S/, ..lambda.., or Lambda-bar) + ..pi../sup + -/ + anything at 405 GeV/c. The observed cross sections are 7.43 +- 0.45 mb for K/sup 0//sub S/, 4.01 +- 0.35 mb for ..lambda.., and 0.63 +- 0.12 mb for Lambda-bar. From the analyses of the effective-mass distributions for the (K/sup 0//sub S/..pi../sup + -/), (..lambda pi../sup + -/), and (Lambda-bar..pi../sup + -/) systems, the resonance production cross sections are determined as 4.1 +- 1.0 mb for K/sup asterisk/+(890), 3.6 +- 1.0 mb for K/sup asterisk/-(890), 3.4 +- 1.7 mb for K/sup asterisk/ +- (1420), 0.67 +- 0.12 mb for ..sigma../sup +/(1385), 0.45 +- 0.09 mb for ..sigma../sup -/(1385), and 0.25 +- 0.08 mb for Sigma-bar/sup + -/(1385). The inclusive total and differential cross sections are discussed in comparison with data at lower energies. The direct production cross sections for pseudoscalar, vector, and tensor K mesons are estimated to be 2.3 +- 1.2, 3.4 +- 1.0, and 1.7 +- 0.8 mb, respectively. Direct pseudoscalar-K-meson production accounts for less than one-third of the total inclusive kaon production. Evidence of vector-meson dominance in inclusive meson production at high energy is indicated.

• Research Organization: KEK, National Laboratory for High Energy Physics, Oho-machi, Tsukuba-gun, Ibaraki-ken, 300-32, Japan
• OSTI ID: 6128146
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 20:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIBARYONS
ANTIHYPERONS
ANTILAMBDA PARTICLES
ANTIMATTER
ANTIPARTICLES
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
BUBBLE CHAMBERS
COMPOSITE MODELS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 100-1000
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INCLUSIVE INTERACTIONS
INTERACTIONS
KAONS
KAONS NEUTRAL
KAONS NEUTRAL SHORT-LIVED
LAMBDA PARTICLES
MASS SPECTRA
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON RESONANCES
MESONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PIONS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
PSEUDOSCALAR MESONS
QUARK MODEL
RADIATION DETECTORS
RESONANCE PARTICLES
SPECTRA
STRANGE PARTICLES
TOTAL CROSS SECTIONS
VECTOR DOMINANCE MODEL
VECTOR MESONS