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

Journal Article · Sun Feb 01 04:00:00 EST 1981 · AIP Conf. Proc.; (United States)

OSTI ID:6333020

Porter, F C

We have measured the inclusive cross section for eta production in e/sup +/e/sup -/ interactions near charm threshold using the Crystal Ball detector at SPEAR. By comparing the inclusive eta production above and below charm threshold we obtain the limits: R(e/sup +/e/sup -/..-->..FFX) BR(F..-->..etax)<0.3 (90% C.L., E/sub c.m./<4.5 GeV); BR(D..-->..etax)<0.13 (90% C.L., averaged over charged and neutral D components of the psi'').

• Research Organization: (Representing the Crystal Ball Collaboration) Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305
• OSTI ID: 6333020
• Report Number(s): CONF-800724-
• Journal Information: AIP Conf. Proc.; (United States), Journal Name: AIP Conf. Proc.; (United States) Vol. 68:1; ISSN APCPC
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Weak Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CROSS SECTIONS
DATA
DECAY
ELECTRODYNAMICS
ELECTROMAGNETIC RADIATION
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
ETA MESONS
EXPERIMENTAL DATA
FIELD THEORIES
GAMMA RADIATION
GEV RANGE
GEV RANGE 01-10
HADRONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
IONIZING RADIATIONS
LEPTON-LEPTON INTERACTIONS
MASS SPECTRA
MESONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
RADIATIONS
SPEAR
SPECTRA
STORAGE RINGS
THRESHOLD ENERGY