Study of multiple pion production reactions at the VEPP-2M storage ring using a cryogenic magnetic detector
The cross sections for the processes e/sup +/e/sup -/..--> pi../sup +/..pi../sup -/..pi../sup +/..pi../sup -/ and e/sup +/e/sup -/..--> pi../sup +/..pi../sup -/..pi../sup +/..pi../sup -/..pi../sup 0/ have been measured in the energy range 2E = 1019--1403 MeV with the cryogenic magnetic detector (CMD) at the VEPP-2M electron-positron storage ring. The limit B(phi..--> pi../sup +/..pi../sup -/..pi../sup +/..pi../sup -/..pi../sup 0/)<1.5 x 10/sup -4/ has been obtained at the 95% confidence level. At the energy 2E = 1403 MeV, the cross section sigma = 0.26 +- 0.12 nb for the reaction e/sup +/e/sup -/..--> pi../sup +/..pi../sup -/..pi../sup +/..pi../sup -/..pi../sup 0/..pi../sup 0/ has been measured, and a limit sigma<45 pb on the cross section for e/sup +/e/sup -/..--> pi../sup +/..pi../sup -/..pi../sup +/..pi../sup -/..pi../sup +/..pi../sup -/ has been obtained at the 95% confidence level.
- Research Organization:
- Institute of Nuclear Physics, Siberian Division, USSR Academy of Sciences
- OSTI ID:
- 6920511
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Vol. 47:2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Searching for the process e{sup +}e{sup -} {yields} K{sup +}K{sup -}{pi}{sup 0} in experiments with the spherical neutral detector at VEPP-2M
Measurement of cross sections for processes involving e{sup +}e{sup -} annihilation to hadrons at the VEPP-2M collider
Related Subjects
ELECTRON-POSITRON INTERACTIONS
MULTIPLE PRODUCTION
CROSS SECTIONS
GEV RANGE 01-10
PIONS MINUS
PIONS NEUTRAL
PIONS PLUS
BOSONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
HADRONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MESONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PIONS
PSEUDOSCALAR MESONS
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties