Spin tests of intermediate resonances in doubly radiative quarkonium decays

Journal Article · Mon Apr 01 04:00:00 EST 1991 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.43.2171· OSTI ID:5655541

Banerjee, S ^[1]

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1. Department of Physics and Institute of Nuclear and Particle Physics, University of Virginia, Charlottesville, Virginia 22901 (US)

Expressions for angular distributions of final particles in doubly radiative decays of quarkonium states are obtained from the helicity formalism. Cases considered are decay products of interfering resonances of closely spaced masses and resonances produced by transversely polarized leptons. In completion of an earlier work, the distribution for decay products of an intermediate resonance {chi} of spin 3 is also quoted to prove that the spin {ital s}{sub {chi}} of {chi} can be unambiguously determined for {ital s}{sub {chi}}{ge}3.

• OSTI ID: 5655541
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 43:7; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
DECAY
DENSITY MATRIX
DISTRIBUTION
ELEMENTARY PARTICLES
FERMIONS
HELICITY
LEPTONS
MASS
MATRICES
PARTICLE DECAY
PARTICLE PROPERTIES
POLARIZATION
QUARKONIUM
RADIATIVE DECAY
RESONANCE
SPIN