Study of D(1285)- and E(1420)-meson production in exclusive interactions by negatively charged pions and kaons at 32. 5 GeV/c

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

OSTI ID:6297777

Bityukov, S I; Viktorov, V A; Golovkin, S V; Gritsuk, M V; Dzhelyadin, R I; Dorofeev, V A; Zaitsev, A M; Kakauridze, D B; Kachanov, V A; Konstantinov, A S; Konstantinov, V F; Kubarovskii, V P; Kulik, A V; Kurshetsov, V F; Landsberg, L G; Lapin, V V; Mukhin, V A; Novozhilov, Y B; Obraztsov, V F; Solyanik, V I

D(1285)- and E(1420)-meson production in ..pi../sup -/- and K/sup -/-meson charge-exchange reactions at 32.5 GeV/c are studied. The D(1285) production cross section is found to be sigma(..pi../sup -/p..-->..D(1285)n) = 4.3 +- 1.3 ..mu..b and the ratio sigma(..pi../sup -/p..-->..E(1420)n)/sigma(..pi../sup -/p..-->..D(1285)n)<0.05 is found at the 90% confidence level. These data lead to the limit on the mixing angle for the axial-meson nonet Vertical BardeltaVertical Bar<13/sup 0/(delta = 0 corresponds to ideal mixing), which means that the E(1420) meson consists mainly of strange quarks. The E(1420)-meson signal is observed in the reaction K/sup -/p..-->..K/sup +/K/sup -/..pi../sup 0/Y. The large value sigma(K/sup -/p..-->..E(1420)Y)/sigma(..pi../sup -/p..-->..E(1420)n)>10 confirms this conclusion about the quark content of the E meson.

• Research Organization: Institute of High Energy Physics, Serpukhov
• OSTI ID: 6297777
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 39:5; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645104* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
CONFIGURATION MIXING
CROSS SECTIONS
D-1285 RESONANCES
DATA
E-1422 RESONANCES
ELEMENTARY PARTICLES
ENERGY RANGE
EXCLUSIVE INTERACTIONS
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
KAON MINUS-PROTON INTERACTIONS
KAON-NUCLEON INTERACTIONS
KAON-PROTON INTERACTIONS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NEUTRONS
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
RESONANCE PARTICLES