Hunt for the 1/sup 1/P/sub 1/ bound state of charmonium

Technical Report · Mon Feb 01 00:00:00 EST 1982

DOI:https://doi.org/10.2172/5165717· OSTI ID:5165717

Porter, F C

Using the Crystal Ball detector at SPEAR, we have looked for evidence of the isospin-violating decay psi' ..-->.. ..pi../sup 01/P/sub 1/, where /sup 1/P/sub 1/ is the predicted spin-singlet p-wave bound state of charmonium. For a /sup 1/P/sub 1/ state at the predicted mass (approx. 3520 MeV), we obtain the 95% confidence level limits: BR(psi' ..-->.. ..pi../sup 01/P/sub 1/) < 0.55%, BR(psi' ..-->.. ..pi../sup 01/P/sub 1/)BR(/sup 1/P/sub 1/ ..-->.. ..gamma..n/sub c/ < 0.14%. These limits are compared with simple theoretical predictions.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States); California Inst. of Tech., Pasadena (USA). Dept. of Physics
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 5165717
• Report Number(s): SLAC-PUB-2881; CONF-820143-1; CALT-68-899; ON: DE82009520; TRN: 82-016932
• Resource Relation: Conference: 17. Recontre de Moriond workshop on new flavours, Les Arcs, France, 24 Jan 1982
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARMONIUM
BOUND STATE
PSI RESONANCES
PARTICLE DECAY
ELECTRON-POSITRON INTERACTIONS
ENERGY LEVELS
ISOSPIN
MASS SPECTRA
P WAVES
PHOTONS
PIONS
RADIATIVE DECAY
SPEAR
BOSONS
DECAY
ELECTROMAGNETIC PARTICLE DECAY
ELEMENTARY PARTICLES
HADRONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MASSLESS PARTICLES
MESON RESONANCES
MESONS
PARTIAL WAVES
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PSEUDOSCALAR MESONS
QUARKONIUM
RESONANCE PARTICLES
SPECTRA
STORAGE RINGS
VECTOR MESONS
WEAK PARTICLE DECAY
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