Quark loop model of radiative meson decays

1979 ◽  
Vol 2 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Norma M. Chase ◽  
Michael T. Vaughn
Keyword(s):  
Loop Model ◽  
Quark Loop ◽  
Meson Decays ◽  
Radiative Meson Decays

Radiative Meson Decays in a Quark-Oscillator Model

1973 ◽  
Vol 8 (11) ◽  
pp. 3875-3881 ◽  
Author(s):  
Steven B. Berger ◽  
Bernard T. Feld
Keyword(s):  
Oscillator Model ◽  
Meson Decays ◽  
Radiative Meson Decays

Radiative decays of mesons in a quark loop model

1971 ◽  
Vol 1 (1) ◽  
pp. 30-32 ◽  
Author(s):  
A. Esteve ◽  
J. León ◽  
A. Tiemblo
Keyword(s):  
Radiative Decays ◽  
Loop Model ◽  
Quark Loop

scholarly journals MESON PVV INTERACTIONS ARE DETERMINED BY QUARK LOOPS

1999 ◽  
Vol 14 (27) ◽  
pp. 4331-4345 ◽  
Author(s):  
R. DELBOURGO ◽  
DONGSHENG LIU ◽  
M. D. SCADRON
Keyword(s):  
External Momentum ◽  
Coupling Constants ◽  
P Wave ◽  
Wave State ◽  
Mixing Angles ◽  
Meson Decays ◽  
Three Body ◽  
Radiative Meson Decays ◽  
Quark Loops

We show that all abnormal parity three-body meson interactions can be adequately described by quark loops, evaluated at zero external momentum, with couplings determined by U(Nf) symmetry. We focus primarily on radiative meson decays which involve one pseudoscalar. The agreement with experiment for nonrare decays is surprisingly good and requires very few parameters, namely the coupling constants gπqq and gρqq and some mixing angles. This agreement extends to some three-body decays that are dominated by pion pairs in a P-wave state.

scholarly journals X0-η Mixing and Radiative Meson Decays

1968 ◽  
Vol 39 (3) ◽  
pp. 696-701 ◽  
Author(s):  
Akira Kanazawa ◽  
Tetsuro Sakuma
Keyword(s):  
Meson Decays ◽  
Radiative Meson Decays

Symmetry breaking in radiative meson decays

1970 ◽  
Vol 68 (3) ◽  
pp. 459-468 ◽  
Author(s):  
D. F. Greenberg
Keyword(s):  
Symmetry Breaking ◽  
Meson Decays ◽  
Radiative Meson Decays

scholarly journals Erratum to: Radiative decays of mesons in a quark-loop model

1971 ◽  
Vol 1 (4) ◽  
pp. 174-174
Author(s):  
A. Esteve ◽  
J. León ◽  
A. Tiemblo
Keyword(s):  
Radiative Decays ◽  
Loop Model ◽  
Quark Loop

Radiative pion decay in a simple quark loop model

1976 ◽  
Vol 54 (2) ◽  
pp. 158-163 ◽  
Author(s):  
L. Resnick ◽  
J. H. Kim
Keyword(s):  
Basic Assumption ◽  
Dimensional Regularization ◽  
Weak Decay ◽  
Coupling Constants ◽  
Pion Decay ◽  
Loop Model ◽  
Quark Loop ◽  
Quark Masses ◽  
The One ◽  
The Masses

The weak decay of pions into leptons and into leptons plus photon is examined in a simple model at the one loop level. A basic assumption made is that there is more than one pair of quarks to which the pion couples and the masses and coupling constants are such that all amplitudes are finite. The amplitudes are defined by means of dimensional regularization and gauge invariance is rigorously maintained throughout. The experimental lifetimes for charged and neutral pion decay give one constraint among the quark masses and the parameter γ, the ratio of structure dependent axial to vector form factor, gives a second. Quark masses can be found to satisfy either condition, but no solution exists for both constraints simultaneously.

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