Published May 1981
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Exclusive final states from photon-photon collisions at SPEAR
Description
Studies of exclusive final states produced by the two-photon process have been made at SPEAR by the Mark II and by the Crystal Ball Collaborations. Measurements of π+π- and π0π0 production in the mass region 500 MeV/c2 < m/sub ππ/ < 2000 MeV/c2 are presented. These data include strong signals from the well-known f(1270) meson. The A2(1310) has been observed via its π0 eta decay mode and its partial width to γγ has been determined. A measurement of the cross section for the reaction γγ → π+π-π+π- is reported. This channel is found to be small just above the four pion threshold, but exhibits a large enhancement near the rho0rho0 threshold
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS., PC A02/MF A01.Files
12637018.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 22 p.
- Report number
- SLAC-PUB--2745
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 12637018
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CROSS SECTIONS; EXCLUSIVE INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE 01-10; MEV RANGE 100-1000; PHOTON-PHOTON INTERACTIONS; PHOTOPRODUCTION; PIONS MINUS; PIONS NEUTRAL; PIONS PLUS
- Descriptors DEC
- ANTIMATTER; ANTIMESONS; ANTIPARTICLES; BASIC INTERACTIONS; BOSONS; DATA; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HADRONS; INFORMATION; INTERACTIONS; MATTER; MESONS; MEV RANGE; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS