scholarly journals On the radiative decays of light vector and axial-vector mesons

2008 ◽  
Vol 813 (1-2) ◽  
pp. 96-170 ◽  
Author(s):  
M.F.M. Lutz ◽  
S. Leupold
Keyword(s):  
Axial Vector ◽  
Radiative Decays ◽  
Vector Mesons ◽  
Light Vector

scholarly journals Hidden gauge formalism for the radiative decays of axial-vector mesons

2009 ◽  
Vol 79 (1) ◽  
Author(s):  
H. Nagahiro ◽  
L. Roca ◽  
A. Hosaka ◽  
E. Oset
Keyword(s):  
Axial Vector ◽  
Radiative Decays ◽  
Vector Mesons

scholarly journals Radiative decays of light vector mesons

2000 ◽  
Vol 675 (1-2) ◽  
pp. 213-216 ◽  
Author(s):  
M.N Achasov ◽  
S.E Baru ◽  
K.I Beloborodov ◽  
A.V Berdyugin ◽  
A.V Bozhenok ◽  
...  
Keyword(s):  
Radiative Decays ◽  
Vector Mesons ◽  
Light Vector

scholarly journals Quantum loops in radiative decays of the a1 and b1 axial-vector mesons

2007 ◽  
Vol 658 (1-3) ◽  
pp. 17-26 ◽  
Author(s):  
L. Roca ◽  
A. Hosaka ◽  
E. Oset
Keyword(s):  
Axial Vector ◽  
Radiative Decays ◽  
Vector Mesons

scholarly journals Radially excited axial-vector mesons in the extended Nambu–Jona-Lasinio model

2014 ◽  
Vol 29 (24) ◽  
pp. 1450125 ◽  
Author(s):  
A. V. Vishneva ◽  
M. K. Volkov
Keyword(s):  
Experimental Data ◽  
Excited State ◽  
Mass Spectrum ◽  
Excited States ◽  
Axial Vector ◽  
Form Factors ◽  
Radiative Decays ◽  
Vector Mesons ◽  
Polynomial Type ◽  
Quark Momentum

The first radial excitations of axial-vector mesons are considered in the framework of the extended U(3) × U(3) Nambu–Jona-Lasinio model. We calculate the mass spectrum of a1, f1 and also strange axial-vector mesons. For description of radially excited states, we used the form factors of polynomial type of the second order in transverse quark momentum. For the ground- and excited-state mesons consisting of light quarks we have calculated the widths of a number of strong and radiative decays. We got satisfactory agreement with experimental data for the ground states. A set of predictions for the excited states of mesons is given.

RADIATIVE DECAYS OF EQUAL MASS VECTOR MESONS IN A BETHE–SALPETER EQUATION FRAMEWORK

2012 ◽  
Vol 21 (10) ◽  
pp. 1250084 ◽  
Author(s):  
ELIAS MENGESHA ◽  
SHASHANK BHATNAGAR
Keyword(s):  
Form Factors ◽  
Equal Mass ◽  
Radiative Decays ◽  
Vector Mesons ◽  
Quark Loop ◽  
Factors Associated ◽  
Pseudoscalar Mesons ◽  
Light Vector ◽  
Decay Widths ◽  
Radiative Meson Decays

In this work, we have employed Bethe–Salpeter equation (BSE) under Covariant Instantaneous Ansatz (CIA) to study radiative decays of light vector mesons through the process: h→h'γ, taking h and h' as equal mass light vector and pseudoscalar mesons, respectively. The decay widths calculated for these processes are in reasonable agreement with data. The motivation for this work was our intention to resolve the problems involved in calculations of triangle quark-loop diagrams which appear in processes such as radiative meson decays, meson form factors, strong decays of mesons, etc., in BSE under CIA, which give rise to complexities in amplitudes (as pointed out earlier in Ref. 1) due to the presence of the time-like momentum components in Gaussian factors associated with the vertex functions of the participating hadrons. In this work we try to highlight this problem and then demonstrate a mathematical procedure which might lead to calculations of such processes in BSE under CIA.

Electroproduction of two-light vector mesons from collinearly improved BFKL kernel

2008 ◽  
Author(s):  
Alessandro Papa ◽  
Francesco Caporale ◽  
Augustin Sabio Vera
Keyword(s):  
Vector Mesons ◽  
Light Vector ◽  
Bfkl Kernel
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