Radiative meson decays in a quark-oscillator model

Journal Article · Sat Dec 01 04:00:00 EST 1973 · Phys. Rev., D, v. 8, no. 11, pp. 3875-3881

DOI:https://doi.org/10.1103/PhysRevD.8.3875· OSTI ID:4305962

Berger, S B; Feld, B T

One- and two-photon decays of meson resonances are calculated in a quark- osccillator model using a nonrelativistic interaction Hamiltonian and vector dominance. Harmonic-oscillator wave functions are assumed for l = 0 and l = l resonances (e.g., pi , p and A/sub 2/, f, respectively). The calculations in general are sensitive to the value of the well-width parameter a/sup 2/. Good agreement with experiment is obtained for decays of low-lying states (such as pi /sup o/ and n) and for the decay A/sub 2//sup P yields pi /sup plus or minus / + gamma ( GAMMA (predicted) = 0.4-0.6 MeV!. The calculated width for the decay f(1260) yields gamma gamma is less than that predicted by Kunzst et al, on the basis of a phenomenological Lagrangian by a factor of 3 or more. (auth)

• Research Organization: Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-027883
• OSTI ID: 4305962
• Journal Information: Phys. Rev., D, v. 8, no. 11, pp. 3875-3881, Journal Name: Phys. Rev., D, v. 8, no. 11, pp. 3875-3881; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

*MESON RESONANCES-- DECAY
*QUARK MODEL-- DECAY
*SCALAR MESONS-- DECAY
*VECTOR MESONS-- DECAY
HARMONIC OSCILLATOR MODELS
N64220* --Physics (High Energy)--Particle Interactions & Properties (Theoretical)--Electromagnetic
PARTICLE WIDTHS
PHOTONS
WAVE FUNCTIONS QUARK MODEL