Radiative Decay of Vector Mesons in an Algebraic Model for Hadrons

1973 ◽  
Vol 8 (1) ◽  
pp. 207-214
Author(s):  
A. Böhm ◽  
Jan S. Nilsson
Keyword(s):  
Radiative Decay ◽  
Algebraic Model ◽  
Vector Mesons

scholarly journals Radiative decay intoγPof the low lying axial-vector mesons

2008 ◽  
Vol 77 (3) ◽  
Author(s):  
H. Nagahiro ◽  
L. Roca ◽  
E. Oset
Keyword(s):  
Radiative Decay ◽  
Axial Vector ◽  
Vector Mesons

Vacuum Structure, Chiral Symmetry Breaking and Radiative Decays of Vector Mesons

1997 ◽  
Vol 06 (01) ◽  
pp. 121-134
Author(s):  
A. R. Panda ◽  
K. C. Roy
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Radiative Decay ◽  
Constituent Quark ◽  
Chiral Symmetry Breaking ◽  
Vector Mesons ◽  
Model Calculations ◽  
Vacuum Structure ◽  
Quark Field ◽  
Decay Widths

The radiative decay widths of vector mesons were considered in a model involving chiral symmetry breaking through a nontrivial vacuum structure where the pion and kaon being treating consistently yield the constituent quark wave functions, approximately the same as that obtained from the gap equations and thus in a way determine the constituent quark field operators. Like its earlier success to some low energy hadronic phenomena, here also the model calculations of radiative decay widths of mesons are in reasonable agreements with other theoretical estimations as well as experimental measurements.

scholarly journals Radiative decay of the J(psi) and other vector mesons in SU(4)

1975 ◽  
Author(s):  
A. Bohm ◽  
M. Hossain ◽  
B. A. Kagali ◽  
P. Moylan ◽  
R. B. Teese ◽  
...  
Keyword(s):  
Radiative Decay ◽  
Vector Mesons

scholarly journals Dalitz Decays of Unflavored Mesons in the Poincaré Covariant Quark Model

2019 ◽  
Vol 64 (6) ◽  
pp. 451 ◽  
Author(s):  
V. Yu. Haurysh ◽  
V. V. Andreev
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Decay Constant ◽  
Radiative Decay ◽  
Vector Mesons ◽  
Mixing Angles ◽  
Decay Constants ◽  
S Quarks ◽  
Point Form ◽  
Covariant Quark Model

The procedure for obtaining the radiative decay constants of pseudoscalar and vector unflavored mesons in the point-form of PiQM is presented. Based on the obtained earlier parameters of the model for light (u, d, s) quarks, we obtain the remaining parameters from the experiments on the V → Py and P → Vy decays. As a result, the mixing angles for pseudoscalar and vector mesons and the behavior of the V → Pℓ+ℓ− decay constant are obtained in agreement with modern experimental data.

scholarly journals Decays of light mesons in the relativistic quark model

2019 ◽  
Vol 55 (3) ◽  
pp. 325-337
Author(s):  
V. Yu. Haurysh ◽  
V. V. Andreev
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Radiative Decay ◽  
Form Factors ◽  
Integral Representations ◽  
Relativistic Quark Model ◽  
Vector Mesons ◽  
Resonance Effects ◽  
Decay Constants ◽  
Oscillator Wave Function

In the framework of the relativistic quark model based on the point form of the Poincaré-invariant quantum mechanics, the parameters were fixed using the integral representations of the lepton decay constants of pseudoscalar and vector mesons containing u-, d- and s-quarks. As a result of numerical calculations using the oscillator wave function, the basic parameters of the model are obtained using the pseudoscalar density constant and current quark masses. The analysis showed that the obtained calculation results in the framework of the model and the experimental data on the lepton decays of hadrons agree well with each other. As a result, the calculation method is generalized to the case of hadronic transitions with γ-quantum emission and a subsequent calculation of the integral representations of radiative decay constants of pseudoscalar and vector mesons. The obtained values of the anomalous magnetic moments are compared with the baryon data. As a test of the model, the authors studied the behavior of the form-factors of radiative decays of vector mesons with a subsequent comparison to the modern experimental data in the q < 0.5 GeV range where the resonance effects are insignificant. As a result, self-consistent descriptions of lepton and radiative transitions were obtained within the framework of the model proposed by the authors.

Leptonic decays of vector mesons in a power-law potential model of independent quarks

2014 ◽  
Vol 29 (13) ◽  
pp. 1450067 ◽  
Author(s):  
S. N. Jena ◽  
P. K. Nanda ◽  
S. Sahoo ◽  
P. Panda
Keyword(s):  
Power Law ◽  
Radiative Decay ◽  
Potential Model ◽  
Transition Probability ◽  
Leptonic Decay ◽  
Model Parameters ◽  
Vector Mesons ◽  
Leptonic Decays ◽  
Momentum Distribution Function ◽  
Decay Widths

A relativistic power-law potential model of independent quarks is used to study the leptonic decays of neutral vector mesons. Here, the transition probability amplitude for leptonic decay of meson is determined from the momentum distribution function which is found from the assumption of a strong correlation existing between the momenta of quark and antiquark inside the meson. The model parameters are first determined from the application of the model to study the ground state spectra of ρ, ω, ϕ, ψ and ϒ mesons together with the radiative decay widths of mesons. The same model with no adjustable parameters is then used to evaluate the leptonic decay widths and the electromagnetic decay constants for the vector mesons ρ, ω, ϕ, ψ and ϒ. The calculated results are in remarkable agreement with the corresponding experimental values.

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