Measurement of inclusive eta production in e/sup +/e/sup -/ interactions near charm threshold

Conference · Fri Aug 01 00:00:00 EDT 1980

OSTI ID:5071117

Porter, F C

The inclusive cross section for eta production in e/sup +/e/sup -/ interactions near charm threshold was measured by use of the Crystal Ball detector at SPEAR. By comparison of the inclusive eta production above and below charm threshold the following limits were obtained: R(e/sup +/e/sup -/ ..-->.. F anti FX)BR(F ..-->.. eta x) < 0.3 (90% C.L., E/sub cm/ < 4.5 GeV); BR(D ..-->.. eta x) < 0.13 (90% C.L., averaged over charged and neutral D components of the psi''). 4 figures, 1 table.

• Research Organization: Stanford Linear Accelerator Center, CA (USA); California Inst. of Tech., Pasadena (USA)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 5071117
• Report Number(s): SLAC-PUB-2593; CALT-68-792; CONF-800724-38; TRN: 80-018171
• Resource Relation: Conference: 20. international conference on high energy physics, Madison, WI, USA, 17 Jul 1980
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D-1865 RESONANCES
HADRONIC PARTICLE DECAY
ELECTRON-POSITRON INTERACTIONS
CROSS SECTIONS
ETA MESONS
PARTICLE PRODUCTION
F-2030 RESONANCES
BRANCHING RATIO
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
INCLUSIVE INTERACTIONS
MULTIWIRE PROPORTIONAL CHAMBERS
NAI DETECTORS
SPARK CHAMBERS
BOSONS
CHARM PARTICLES
CHARMED MESON RESONANCES
D RESONANCES
DATA
DECAY
ELEMENTARY PARTICLES
FUNCTIONS
GAS TRACK DETECTORS
HADRONS
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MEASURING INSTRUMENTS
MESON RESONANCES
MESONS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
POSTULATED PARTICLES
PROPORTIONAL COUNTERS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
RESONANCE PARTICLES
SCINTILLATION COUNTERS
SOLID SCINTILLATION DETECTORS
645101* - High Energy Physics- Particle Interactions &amp; Properties-Experimental- Electromagnetic Interactions &amp; Properties