Observation of the neutral r(2510) meson with spin J = 6

Journal Article · Tue Nov 01 04:00:00 EST 1983 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6650272

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

Meson states formed in ..pi../sup -/p collisions at 38 GeV/c and decaying to two ..pi../sup 0/ mesons are studied in the mass range up to 3 GeV/c/sup 2/. The experiment was performed with high statistics (200 events/nb) at the 70 GeV IHEP accelerator. The hodoscope spectrometer GAMS-2000 was used for detection of photons from the decay M /sup 0/..--> pi../sup 0/..pi../sup 0/..-->..4..gamma.. in the reaction ..pi../sup -/p..-->..M /sup 0/n. A new ..pi pi.. resonance was observed with mass 2510 +- 30 MeV/c/sup 2/ and width GAMMA = 240 +- 60 MeV/c/sup 2/. The quantum numbers of the observed r(2510) meson have been determined: J /sup P/C = 6/sup + +/. The cross section for production of f, h, and r mesons has an exponential dependence on spin approx.exp(-0.9J).

• Research Organization: IHEP-Brussels-Annecy Collaboration Joint Experiment of the Institute for High Energy Physics, Serpukov, USSR, and the European Organization for Nuclear Research, Geneva, Switzerland
• OSTI ID: 6650272
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 38:5; 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
ANGULAR MOMENTUM
BOSONS
CROSS SECTIONS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONIC PARTICLE DECAY
HADRONS
INTERACTIONS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-MESON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NEUTRAL PARTICLES
PARITY
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTICLES
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PION INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
SPIN