Charged-hadron production in e/sup +/e/sup -/ collisions at PEP with the TPC
We have studied hadron production in e/sup +/e/sup -/ annihilation at 29 GeV center of mass energy. We have measured the particle fractions and particle separated differential cross sections using the PEP-4 (Time Projection Chamber) detector. The particles were identified by measuring their ionization energy loss (dE/dx). The pion fraction decreases from above 90% at 400 MeV/c to 55% at 6 GeV/c. Our results for kaon production require that a large number of kaons are produced by strange quarks pulled from the vacuum. We have also measured R, the ratio of the total hadronic cross section to the mu pair cross section. Our value for R is 3.7 with an uncertainty of 10%. This value is in agreement with the results of other experiments and with the predictions of the quark-parton model.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5836536
- Report Number(s):
- LBL-16116; ON: DE83015944
- Country of Publication:
- United States
- Language:
- English
Similar Records
Charged hadron production in e/sup +/e/sup -/ collisions at PEP with the TPC
Total and inclusive hadron production by e/sup +/e/sup -/ annihilation at. sqrt. S = 5. 2, 6. 5 and 29. 0 GeV
Total and inclusive hadron production by e/sup +/e/sup -/ annihilation at. sqrt. = 5. 2, 6. 5, and 29. 0 GeV
Thesis/Dissertation
·
Fri Dec 31 23:00:00 EST 1982
·
OSTI ID:6445894
Total and inclusive hadron production by e/sup +/e/sup -/ annihilation at. sqrt. S = 5. 2, 6. 5 and 29. 0 GeV
Technical Report
·
Thu Jul 01 00:00:00 EDT 1982
·
OSTI ID:6447857
Total and inclusive hadron production by e/sup +/e/sup -/ annihilation at. sqrt. = 5. 2, 6. 5, and 29. 0 GeV
Thesis/Dissertation
·
Thu Dec 31 23:00:00 EST 1981
·
OSTI ID:5171152
Related Subjects
645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
COMPOSITE MODELS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY LOSSES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 10-100
HADRONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
KAONS
LEPTON-LEPTON INTERACTIONS
LOSSES
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESONS
MUON PAIRS
NUMERICAL DATA
PAIR PRODUCTION
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTON MODEL
PEP STORAGE RINGS
PIONS
PROJECTION SPARK CHAMBERS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
SPARK CHAMBERS
STORAGE RINGS
STRANGE PARTICLES
TOTAL CROSS SECTIONS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
COMPOSITE MODELS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY LOSSES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 10-100
HADRONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
KAONS
LEPTON-LEPTON INTERACTIONS
LOSSES
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESONS
MUON PAIRS
NUMERICAL DATA
PAIR PRODUCTION
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTON MODEL
PEP STORAGE RINGS
PIONS
PROJECTION SPARK CHAMBERS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
SPARK CHAMBERS
STORAGE RINGS
STRANGE PARTICLES
TOTAL CROSS SECTIONS