Measurement of the branching ratio of UPSILON(3S). --> pi. /sup +/. pi. /sup -/UPSILON(1S)
Journal Article
·
· Phys. Rev. Lett.; (United States)
The branching ratio of UPSILON(3S)..--> pi../sup +/..pi../sup -/UPSILON(1S) has been measured to be (4.9 +- 0.9 +- 0.5)%. The di-pion invariant-mass distribution for this decay is flatter than that for the decays UPSILON(2S)..--> pi../sup +/..pi../sup -/UPSILON(1S) and psi'..--> pi../sup +/..pi../sup -/psi.
- Research Organization:
- Rutgers University, New Brunswick, New Jersey 08854
- OSTI ID:
- 6768785
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 49:9; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BOSONS
BOUND STATE
BRANCHING RATIO
DECAY
DISTRIBUTION
ELEMENTARY PARTICLES
FIELD THEORIES
HADRONIC PARTICLE DECAY
HADRONS
INTERACTIONS
MASS SPECTRA
MESON RESONANCES
MESONS
PAIR PRODUCTION
PARTICLE DECAY
PCAC THEORY
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
RESONANCE PARTICLES
SPECTRA
UPSILON RESONANCES
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BOSONS
BOUND STATE
BRANCHING RATIO
DECAY
DISTRIBUTION
ELEMENTARY PARTICLES
FIELD THEORIES
HADRONIC PARTICLE DECAY
HADRONS
INTERACTIONS
MASS SPECTRA
MESON RESONANCES
MESONS
PAIR PRODUCTION
PARTICLE DECAY
PCAC THEORY
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
RESONANCE PARTICLES
SPECTRA
UPSILON RESONANCES