Published October 6, 1980 | Version v1
Journal article Metadata-only

Observation of an eta/sub c/ candidate state with mass 2978 +- 9 MeV

Creators

  • 1. Physics Department, California Institute of Technology, Pasadena, California 91125

Description

An eta/sub c/ candidate state has been observed with a mass M=2978 +- 9 MeV and a natural line width GAMMA<20 MeV (90% confidence level) using the Crystal Ball NaI(Tl) detector at SPEAR. Radiative transitions to this state are observed from psi'(3684) and J/psi(3095) in the inclusive photon spectra. The branching fraction to this state from the psi' is (0.43 +- 0.08 +- 0.18)%, where the errors are statistical and systematic, respectively. In addition, evidence is presented for the decay of this new state into etaπ+π- and an upper limit is presented on the decay into π0K+K-

Additional details

Publishing Information

Journal Title
Phys. Rev. Lett.
Journal Volume
45
Journal Issue
14
Series
Phys. Rev. Lett.
Journal Page Range
1150-1153
ISSN
0031-9007

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
12587083
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BRANCHING RATIO; CHARMED MESON RESONANCES; EXPERIMENTAL DATA; PARTICLE IDENTIFICATION; PARTICLE WIDTHS; PSI-3105 RESONANCES; PSI-3695 RESONANCES; RADIATIVE DECAY; REST MASS
Descriptors DEC
BOSONS; DATA; DECAY; ELECTROMAGNETIC PARTICLE DECAY; ELEMENTARY PARTICLES; HADRONS; INFORMATION; MASS; MESON RESONANCES; MESONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE PROPERTIES; PSI RESONANCES; RESONANCE PARTICLES; WEAK PARTICLE DECAY