Mesic hyperfragments produced in the interactions of π^- mesons at 17.2 GeV/c with the nuclei of ionographic emulsions

Journal Article · Sat Jun 01 00:00:00 EDT 1963 · Physics Letters

DOI:https://doi.org/10.1016/S0375-9601(63)80040-7· OSTI ID:4685075

Baumann, G.; Braun, H.; Cüer, P.

Thirty-five of the 168 hyperfragments produced in Ilford G5 emulsion exposed to 17.2-Bev/c mesons ( pi ^-) exhibited mesic decay. The different decay modes and their binding energies were calculated. The distributions of the hyperfragments as functions of track length, charge, and number of branches were similar to those obtained in interactions of 25-Bev protons and of 1.5-Bev/c K ^-. Maxima in the list two distributions occurred for Z = 2 and 3, are spectively. Several of the hyperfragments had charge Z > Z, and the existence of the He⁶ hyperfragment was apparently confirmed. The event /sub LAMBDA /B¹² yields C¹² + pi ^- gave C¹² in the ground state. a study of the angular distribution of the hyperfragments ruled out an evaporation mechanism for their production.

• Research Organization: Centre de Recherches Nucleaires, Strasbourg
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-029617
• OSTI ID: 4685075
• Journal Information: Physics Letters, Journal Name: Physics Letters Journal Issue: 1 Vol. 5; ISSN 0031-9163
• Publisher: Elsevier
• Country of Publication: Country unknown/Code not available
• Language: French

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BINDING ENERGY
BORON 12
CARBON 12
DECAY
DISTRIBUTION
ELECTRIC CHARGES
EVAPORATION MODEL
HELIUM 6
HYPERFRAGMENTS
INTERACTIONS
IONS
KAONS
LAMBDA PARTICLES
MESONS
MOMENTUM
NUCLEAR EMULSIONS
NUCLEI
PARTICLE MODELS
PARTICLE TRACKS
PIONS
PRODUCTION
PROTONS