Inclusive measurements of hyperon production at the CERN Intersecting Storage Rings
Thesis/Dissertation
·
OSTI ID:5596104
Measurements have been made of the inclusive reactions: pp..-->..LAMBDA/sup 0/+x, and pp..-->..anti LAMBDA/sup 0/+x, pp..-->..exactly equal to/sup -/+x, pp..-->..SIGMA+-(1385)+x) at equivalent laboratory moments of 1500 GeV/c (..sqrt..s=53 GeV) and 2100 GeV/c (..sqrt..s=62 GeV) at the CERN Intersecting Storage Rings (ISR). An estimate of the total LAMBDA/sup 0/ and anti LAMBDA/sup 0/ inclusive cross sections is presented. The measured data are extrapolated to x = 0 using ..sqrt..s = 44 GeV CERN Intersecting Storage Ring results. The cross sections for LAMBDA/sup 0/ and anti LAMBDA/sup 0/ are found to be 4.42 +- 0.18 mb and 1.17 +- 0.40 mb at 1500 GeV/c and 4.72 +- 0.18 mb. and 1.37 +- 0.48 mb at 2100 GeV/c respectively. The total exactly equal to /sup -/ inclusive cross section in the region x > 0.4 is found to be. In addition, results are presented of searches for reactions: pp ..-->..(LAMBDA/sup 0/ anti LAMBDA/sup 0/) +x and pp..-->..(LAMBDA/sup 0/LAMBDA/sup 0/)+x. Pair production of LAMBDA/sup 0/ anti LAMBDA/sup 0/ with x > 0.6 is measured to be 1.7 +-/0.2..mu..b, while LAMBDA/sup 0/LAMBDA/sup 0/ cross section in the same x range is less than 1.0 +- 0.1 ..mu..b.
- Research Organization:
- California Univ., Los Angeles (USA)
- OSTI ID:
- 5596104
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BARYONS
CROSS SECTIONS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
LAMBDA PARTICLES
MULTIPLICITY
NUCLEON-NUCLEON INTERACTIONS
NUMERICAL DATA
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
SIGMA PARTICLES
STORAGE RINGS
STRANGE PARTICLES
TEV RANGE
XI PARTICLES
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BARYONS
CROSS SECTIONS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
LAMBDA PARTICLES
MULTIPLICITY
NUCLEON-NUCLEON INTERACTIONS
NUMERICAL DATA
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
SIGMA PARTICLES
STORAGE RINGS
STRANGE PARTICLES
TEV RANGE
XI PARTICLES