Decays of the ψ' (3684) to other charmonium states [Thesis]

Technical Report · Mon Oct 01 00:00:00 EDT 1979

DOI:https://doi.org/10.2172/5459914· OSTI ID:5459914

Himel, Thomas Michael ^[1]

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1. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Stanford Univ., CA (United States)

We report on an experimental study of the decays of the ψ' (3684) to other charmonium states. The decays of 10⁶ ψ' (3684)'s were observed with the SLAC-LBL Mark II detector at the e⁺e^- storage ring SPEAR. Branching ratios have been measured for ψ' (3684) decays to yx where the x decays to yψ (3095) or to hadrons. an upper limit of 0.13% is set on the branching ratio for ψ' → yx(3455) → yyψ(3095); this is a factor of 6 less than the branching ratio measured by a previous less sensitive experiment. we investigate the decay ψ' → yη_c, η_c → hadrons. The decay ψ' → π⁰ψ, which violates isospin conservation, is observed with a branching ratio of (0.15±0.06)%.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: EY-76-C-03-0515
• OSTI ID: 5459914
• Report Number(s): SLAC--223; SLAC-R--223
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
CHARMONIUM
DATA
DATA FORMS
DECAY
ELEMENTARY PARTICLES
ENERGY LEVELS
EXPERIMENTAL DATA
GRAPHS
HADRONIC PARTICLE DECAY
HADRONS
INFORMATION
MESON RESONANCES
MESONS
MONTE CARLO METHOD
NUMERICAL DATA
PARTICLE DECAY
PSI RESONANCES
PSI-3695 RESONANCES
RESONANCE PARTICLES
VECTOR MESONS