Investigation of the hadronic and radiative decays of neutral D-star mesons produced at the 4. 028 GeV electron-positron resonance
Thesis/Dissertation
·
OSTI ID:5585254
The Crystal Ball detector at the colliding-beam ring SPEAR has been used to study the pionic and radiative decays of the neutral charm meson D/sup *0/ in e/sup +/e/sup -/ annihilations at ..sqrt..s = 4.028 GeV. Measurements were made of several D/sup *0/ parameters. The D/sup 0/ mass was found to be m(D/sup 0/) = 1865.3 +/- 1.0 +/- 2.0 MeV, the D/sup *0/ - D/sup 0/ mass difference was found to be ..delta..m = 140.0 +/- 0.5 +- 1.5 MeV, and the D/sup *0/ branching ratio to pions was measured to be BR(D/sup *0/ ..-->.. ..pi../sup 0/D/sup 0/) = 53.1 +/- 3.4 +/- 9.1%. Additionally, some information was obtained on charm meson production cross-sections and combined production-and-decay angular distributions.
- Research Organization:
- Princeton Univ., NJ (USA)
- OSTI ID:
- 5585254
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESONS
CROSS SECTIONS
D MESONS
DATA
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
HADRONS
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MASS
MASS DIFFERENCE
MASSLESS PARTICLES
MESONS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PHOTONS
PIONS
PSEUDOSCALAR MESONS
RADIATIVE DECAY
REST MASS
SPEAR
STORAGE RINGS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESONS
CROSS SECTIONS
D MESONS
DATA
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
HADRONS
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MASS
MASS DIFFERENCE
MASSLESS PARTICLES
MESONS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PHOTONS
PIONS
PSEUDOSCALAR MESONS
RADIATIVE DECAY
REST MASS
SPEAR
STORAGE RINGS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY