Published May 1988
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Measurement of the reaction e+e- → η π + π - in the center of mass energy interval 1350-2400 MeV
Description
The e+e- → η π + π - reaction has been measured in the center of mass energy interval 1350-2400 MeV by the magnetic detector DM2 at the Orsay storage ring DCI. Under the hypothesis of only one large resonance the cross section is not fit in a satisfactory way. The branching ratio τ - → η π - π 0 ν τ = (0.13 ± 0.02)% is deduced via CVC from the above measurement
Availability note (English)
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21034350.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 15 p.
- Report number
- LAL--88-11
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 21034350
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANNIHILATION; CVC THEORY; DCI ORSAY STORAGE RING; ELECTRON-POSITRON INTERACTIONS; GEV RANGE 01-10; PHASE SHIFT; PHOTOPRODUCTION; SCINTILLATION COUNTERS
- Descriptors DEC
- BASIC INTERACTIONS; ELECTROMAGNETIC INTERACTIONS; ENERGY RANGE; GEV RANGE; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MEASURING INSTRUMENTS; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; RADIATION DETECTORS; STORAGE RINGS
Optional Information
- Collaborations
- DM2 Collaboration.