Two-photon decay of the pseudoscalar glueball

Journal Article · Mon Feb 01 04:00:00 EST 1982 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.25.792· OSTI ID:5521447

Senba, K; Tanimoto, M

We derive two sum rules for the amplitudes for two-photon decays of the pseudoscalar mesons including a glueball. The two-photon decay width of the pseudoscalar glueball can be estimated with inputs of GAMMA(..pi -->..2..gamma..), GAMMA(eta..-->..2..gamma..), and GAMMA(eta'..-->..2..gamma..), assuming Ward identities and two other conditions to be useful. If the E(1440) seen in the radiative decay of J/psi is the pseudoscalar glueball, then we obtain GAMMA(E..-->..2..gamma..) = 10 +- 26 keV, where the large error comes mainly from the experimental ambiguity of GAMMA(eta'..-->..2..gamma..).

• Research Organization: Department of Physics, Ehime University, Matsuyama, Japan 790
• OSTI ID: 5521447
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 25:3; ISSN PRVDA
• 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
ALGEBRAIC CURRENTS
AXIAL-VECTOR CURRENTS
BOSONS
CURRENTS
DECAY
ELECTROMAGNETIC PARTICLE DECAY
ELEMENTARY PARTICLES
EQUATIONS
GLUONS
HADRONS
MASSLESS PARTICLES
MATRIX ELEMENTS
MESONS
PARTICLE DECAY
PHOTONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
RADIATIVE DECAY
SUM RULES
WARD IDENTITY
WEAK PARTICLE DECAY