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Resonant and non-resonant hadron production in the upsilon region

Thesis/Dissertation ·
OSTI ID:6741535

Measurements of the total cross-section for the reaction e/sup +/e/sup -/ ..-->.. hadrons in the center-of-mass energy range from 9.4 GeV to 11.6 GeV are reported. the data were taken with the CLEO detector at the Cornell Electron Storage Ring (CESR). The ratio of the continuum cross-section to the muon pair production cross-section is found to be 3.77 +/- 0.06 +/- 0.24, at a mean energy of 10.50 GeV, below the upsilon(4S) resonance. Data taken above upsilon(4S) indicate a step in the ratio of cross-sections of 0.34 +/- 0.09 +/- 0.11, consistent with production of a new quark of charge -1/3. Measured masses and leptonic widths of the narrow resonances upsilon(1S), upsilon(2S), upsilon(3S), and upsilon(4S) are presented. The data are compared with potential model calculations. Results for measurements of inclusive properties of hadronic production at the upsilon(1S), upsilon(2S), upsilon(3S), and non-resonant continuum are also given.

Research Organization:
Cornell Univ., Ithaca, NY (USA)
OSTI ID:
6741535
Country of Publication:
United States
Language:
English

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Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CESR STORAGE RING
CROSS SECTIONS
DATA
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 01-10
GEV RANGE 10-100
HADRONS
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTONIC DECAY
MESON RESONANCES
MESONS
MUON PAIRS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTICLE WIDTHS
RESONANCE PARTICLES
STORAGE RINGS
UPSILON RESONANCES
WEAK INTERACTIONS
WEAK PARTICLE DECAY