Energy Scan for Narrow States in Annihilation at Center-of-mass Energies Between 29.90-{GeV} and 31.46-{GeV}
Nov, 19794 pages
Published in:
- Phys.Lett.B 88 (1979) 199-202
- Published: 1979
Report number:
- DESY-79-75
Experiments:
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Abstract: (Elsevier)
A fine energy scan has been performed to search for narrow states in e + e − annihilation at c.m. energies between 29.90 and 31.46 GeV. No such state has been observed. The 90% confidence upper limit on the leptonic decay width times the hadronic decay branching ratio is Γ ee B h <1.6 keV.- ELECTRON POSITRON: ANNIHILATION
- ANNIHILATION: ELECTRON POSITRON
- ELECTRON POSITRON: COLLIDING BEAMS
- COLLIDING BEAMS: ELECTRON POSITRON
- HADRON: ELECTROPRODUCTION
- ELECTROPRODUCTION: HADRON
- SEARCH FOR: NARROW RESONANCE
- NARROW RESONANCE: SEARCH FOR
- TOTAL CROSS SECTION: RATIO
- RATIO: TOTAL CROSS SECTION
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