Observation of the isospin-nonconserving decay eta'. -->. 3. pi. /sup 0/

Journal Article · Fri Jun 01 04:00:00 EDT 1984 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6130597

Binon, F; Gouanere, M; Donskov, S V; Duteil, P; Inyakin, A V; Kakauridze, D B; Kachanov, V A; Kulik, A V; Lagnaux, J P; Lednev, A A; Mikhailov, Y V; Mouthuy, T; Possoz, A; Prokoshkin, Y D; Rodnov, Y V; Sadovskii, S A; Sin'govskii, A V; Sillou, D; Stroot, J P; Sugonyaev, V P ; Khaustov, G V; Shagin, P M

The rare decay eta'(958)..-->..3..pi../sup 0/, which does not conserve isospin, has been observed in an experiment carried out in the 70-GeV accelerator at the Institute of High Energy Physics. For detection of the six ..gamma.. rays representing the final decay products we used the GAMS-2000 hodoscopic spectrometer. The partial width of the decay is found to be BR(eta'..-->..3..pi../sup 0/) = (1.6 +- 0.4)x10/sup -3/. Estimates of the masses of the u and d quarks are obtained.

• Research Organization: Joint Experiment of the Institute of High Energy Physics, Serpukhov, USSR, and the European Organization for Nuclear Research (CERN), Geneva, Switzerland
• OSTI ID: 6130597
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 39:6; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
DATA
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
ETA-958 RESONANCES
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONIC PARTICLE DECAY
HADRONS
INFORMATION
INTERACTIONS
ISOSPIN
MASS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PARTICLE WIDTHS
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
PIONS NEUTRAL
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARKS
RESONANCE PARTICLES