Search for new short-lived particles in collisions between 60 GeV/c. pi. /sup -/ mesons and emulsion nuclei

Journal Article · Mon Sep 05 00:00:00 EDT 1977 · JETP Lett. (USSR) (Engl. Transl.); (United States)

OSTI ID:7276463

Bannik, B P; Bobodzhanov, I; Leskin, V A; Mukhtarov, A; Salomov, D A; Sun Dzin-Yan, G Y; Tolstov, K D; Koshmukhamedov, R A; Kushvaktova, A A; Shabratova, G S; El'-Nagi, A

We investigated the vicinities of approx.10 000 stars from interactions of ..pi../sup -/ mesons with emulsion nuclei at a momentum 60 GeV/c. We found one event that can be interpreted as a leptonic decay of a new particle. Under resonable assumptions concerning the decay mode, the effective mass of the particle is approx. 2.4 GeV and its lifetime is approx.10/sup -14/ sec.

• Research Organization: Joint Institute for Nuclear Research; Physicotechnical Institute of the Tadzhik Academy of Sciences
• OSTI ID: 7276463
• Journal Information: JETP Lett. (USSR) (Engl. Transl.); (United States), Vol. 26:5
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
MESON RESONANCES
PARTICLE PRODUCTION
NUCLEAR EMULSIONS
PION MINUS REACTIONS
CHARM PARTICLES
EFFECTIVE MASS
GEV RANGE 10-100
LEPTONIC DECAY
LIFETIME
BASIC INTERACTIONS
BOSONS
CHARGED-PARTICLE REACTIONS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
HADRON REACTIONS
HADRONS
INTERACTIONS
MASS
MESON REACTIONS
MESONS
NUCLEAR REACTIONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PION REACTIONS
POSTULATED PARTICLES
RESONANCE PARTICLES
WEAK INTERACTIONS
WEAK PARTICLE DECAY
645104* - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Meson-Induced Interactions- (-1987)