Theory and phenomenology of radiative meson decays

1977 ◽  
Vol 55 (15) ◽  
pp. 1301-1309 ◽  
Author(s):  
P. J. O'Donnell
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Radiative Decays ◽  
Meson Decays ◽  
Vector Dominance ◽  
Radiative Meson Decays

The experimental data on the radiative decays of mesons (not involving charm) are reviewed. The consistency of these data with SU(3) symmetry, vector dominance, and the quark model is discussed.

e+ e- ANNIHILATION INTO $\overline{N}N$ PAIRS

2003 ◽  
Vol 18 (02n06) ◽  
pp. 370-373 ◽  
Author(s):  
Y. YAN ◽  
C. KOBDAJ ◽  
W. UCHAI ◽  
AMAND FAESSLER ◽  
T. GUTSCHE ◽  
...  
Keyword(s):  
Experimental Data ◽  
Vector Meson ◽  
Quark Model ◽  
Step Process ◽  
Meson Decays ◽  
Quantum Numbers ◽  
One Step ◽  
The One

The reactions of electron-position annihilation into nucleon-antinucleon pairs have been studied in a nonperturbative quark model. The work suggests that the two-step process, in which the primary [Formula: see text] pair forms first a meson and then the meson decays into baryon pair, is dominant over the one-step process in which the primary [Formula: see text] pair is directly dressed by two additional [Formula: see text] pairs to form a baryon pair. The experimental data indicates that there exists a vector meson with quantum numbers IG(JPC) = 0-(1--) and a mass around 2 GeV.

Vector dominance and radiative meson decays

1987 ◽  
Vol 184 (4) ◽  
pp. 348-352 ◽  
Author(s):  
J.W. Durso
Keyword(s):  
Meson Decays ◽  
Vector Dominance ◽  
Radiative Meson Decays

HYPERON RADIATIVE DECAYS

1995 ◽  
Vol 10 (27) ◽  
pp. 3817-3876 ◽  
Author(s):  
J. LACH ◽  
P. ŻENCZYKOWSKI
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Convincing Evidence ◽  
Radiative Decays ◽  
Theoretical Part ◽  
Hadron Level ◽  
Theoretical Status ◽  
Hyperon Decays ◽  
Quark Level ◽  
Composite Nature

We review the experimental and theoretical status of weak radiative hyperon decays. Our discussion centers on a controversy over the validity of Hara’s theorem, which was originally expected to be respected by these decays. After presenting the hadron level theorem we describe experiments that have provided convincing evidence against its applicability to these decays. In the theoretical part we juxtapose the hadron level and quark level approaches and discuss the violation of Hara’s theorem in the latter. We review quark model phenomenology, which offers a promising description of experimental data. Measurements that should be made to settle the theoretical controversy are pinpointed. The importance of radiative hyperon decays in understanding the nonlocal composite nature of hadrons is stressed.

scholarly journals Quark Triangle Diagrams and Radiative Meson Decays

1997 ◽  
Vol 50 (1) ◽  
pp. 155
Author(s):  
N. R. Jones ◽  
Dongsheng Liu
Keyword(s):  
Experimental Data ◽  
Heavy Meson ◽  
Coupling Constants ◽  
Experimental Confirmation ◽  
Light Meson ◽  
Meson Decay ◽  
Triangle Diagram ◽  
Meson Decays ◽  
Data Yield ◽  
Radiative Meson Decays

The radiative meson decays V→ Pγ and P →γγ are analysed using the quark triangle diagram. Experimental data yield well determined estimates of the universal quark–antiquark–meson couplings gvqq′ and gpqq′ for the light meson sector. Also predictions for the ratios of neutral to charged heavy meson decay coupling constants are given and await experimental confirmation.

scholarly journals Light-cone quark model predictions for radiative meson decays

1997 ◽  
Vol 618 (3) ◽  
pp. 291-316 ◽  
Author(s):  
Ho-Meoyng Choi ◽  
Chueng-Ryong Ji
Keyword(s):  
Quark Model ◽  
Light Cone ◽  
Meson Decays ◽  
Model Predictions ◽  
Radiative Meson Decays

AN EXTENDED VECTOR DOMINANCE MODEL : ITS IMPLICATIONS ON MESON DECAYS AND e+ e- ANNIHILATION INTO HADRONS

1971 ◽  
Vol 32 (C3) ◽  
pp. C3-93-C3-97
Author(s):  
A. BRAMÓN ◽  
M. GRECO
Keyword(s):  
Dominance Model ◽  
Meson Decays ◽  
Vector Dominance

Recent experimental data and the size of the quark in the constituent quark model

2002 ◽  
Vol 25 (2) ◽  
pp. 277-286
Author(s):  
S. Bondarenko ◽  
E. Levin ◽  
J. Nuiri
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Recent Experimental Data

scholarly journals Exclusive Weak Radiative Decays of B Mesons in the Covariant Oscillator Quark Model

1999 ◽  
Vol 101 (5) ◽  
pp. 1083-1091 ◽  
Author(s):  
R. Mohanta ◽  
A. K. Giri ◽  
M. P. Khanna ◽  
M. Ishida ◽  
S. Ishida
Keyword(s):  
Quark Model ◽  
B Mesons ◽  
Radiative 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

scholarly journals FINAL STATE INTERACTIONS IN B → ππK AND $B\to K\overline{K}K$ DECAYS

2007 ◽  
Vol 22 (02n03) ◽  
pp. 645-648
Author(s):  
L. LEŚNIAK ◽  
R. KAMIŃSKI ◽  
B. EL-BENNICH ◽  
B. LOISEAU ◽  
A. FURMAN
Keyword(s):  
Experimental Data ◽  
Theoretical Model ◽  
Unitary Representation ◽  
B Meson ◽  
Final State ◽  
B Meson Decays ◽  
Meson Decays ◽  
Neutral B Meson ◽  
Final State Interactions

Analysis of charged and neutral B meson decays into π+π-K, K+K-K and [Formula: see text] is performed using a unitary representation of the ππ and [Formula: see text] final state interactions. Comparison of the theoretical model with the experimental data of the Belle and BaBar Collaborations indicates that charming penguin contributions are necessary to describe the B → f0(980) K and B → ρ(770)0 K decays.

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