Radiative decay widths of mesons beyond static approximation in a relativistic potential model

2002 ◽  
Vol 699 (3-4) ◽  
pp. 649-664 ◽  
Author(s):  
S.N. Jena ◽  
P. Panda ◽  
T.C. Tripathy
Keyword(s):  
Radiative Decay ◽  
Potential Model ◽  
Static Approximation ◽  
Decay Widths ◽  
Relativistic Potential

Chiral particle/Photon emission from heavy-light mesons

2014 ◽  
Vol 29 ◽  
pp. 1460239
Author(s):  
Takayuki Matsuki ◽  
Kohichi Seo
Keyword(s):  
Radiative Decay ◽  
Potential Model ◽  
Lorentz Invariance ◽  
Photon Emission ◽  
Wave Functions ◽  
Relativistic Wave ◽  
Decay Widths ◽  
Light Mesons ◽  
Relativistic Potential

Partial decay widths of the heavy-light mesons, D, Ds, B, and Bs, emitting one chiral particle (π or K) or photon γ are evaluated in the framework of a relativistic potential model. Decay amplitudes are calculated by keeping the Lorentz invariance as far as possible and use has been made of the Lorentz-boosted relativistic wave functions of the heavy-light mesons. One of predictions of our calculation is very narrow widths of a few keV for yet undiscovered Bs(0+, 1+) mesons corresponding to 2S+1LJ = 3P0 and "3P1" assuming their masses to be 5617 and 5682 MeV, respectively, as calculated in our former paper. Sizable radiative decay widths of D* or [Formula: see text] are obtained by including the 1st order corrections in 1/mQ expansion, in the unit of keV; Γ(D*0 → D0 + γ) = 9.8, Γ (D*+ → D+ + γ) = 0.71, [Formula: see text] and large radiative decay widths of DsJ are obtained compared with non-relativistic results.

RADIATIVE DECAY OF LIGHT AND HEAVY MESONS IN AN INDEPENDENT QUARK MODEL

2001 ◽  
Vol 16 (27) ◽  
pp. 1785-1794 ◽  
Author(s):  
HAKAN ÇIFTCI ◽  
HÜSEYIN KORU
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Ground State ◽  
Radiative Decay ◽  
Potential Model ◽  
Magnetic Moments ◽  
Heavy Mesons ◽  
Decay Widths ◽  
Relativistic Potential

In this paper we have calculated transition magnetic moments and radiative decay widths of light and heavy mesons using a relativistic potential model of independent quarks with its parameters determined from a fit to the mass of ground state mesons in the strange, charm and bottom flavor sectors. The results are in agreement with the experimental data.

M1 TRANSITIONS OF MESONS IN A POTENTIAL MODEL OF INDEPENDENT QUARKS

2010 ◽  
Vol 25 (10) ◽  
pp. 2063-2086 ◽  
Author(s):  
S. N. JENA ◽  
M. K. MUNI ◽  
H. R. PATTNAIK ◽  
K. P. SAHU
Keyword(s):  
Ground State ◽  
Potential Model ◽  
Decay Rates ◽  
Momentum Dependence ◽  
Model Calculations ◽  
Static Approximation ◽  
Heavy Mesons ◽  
Decay Widths ◽  
Light Mesons ◽  
Relativistic Potential

The decay widths for M1 transitions of mesons are calculated in a relativistic potential model of independent quarks with its parameters determined from a fit to the mass splittings of the ground state mesons in the strange, charm and bottom flavor sector. A more realistic calculation of the decay widths is performed beyond static approximation incorporating some momentum dependence due to recoil of the daughter meson. The model accounts well for the observed decay widths of light mesons and predicts decay rates of heavy mesons which are comparable with those of other model calculations.

Retraction: Leptonic decay widths of vector mesons in a relativistic potential model

2014 ◽  
Vol 92 (5) ◽  
pp. 458-458
Author(s):  
S.N. Jena ◽  
R.N. Mishra ◽  
P.K. Nanda ◽  
S. Sahoo
Keyword(s):  
Potential Model ◽  
Leptonic Decay ◽  
Vector Mesons ◽  
Decay Widths ◽  
Relativistic Potential

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.

An independent-quark model calculation for radiative decay widths of mesons in static and beyond static approximation

2010 ◽  
Vol 88 (7) ◽  
pp. 517-527 ◽  
Author(s):  
S. N. Jena ◽  
H. H. Muni ◽  
P. K. Mohapatra ◽  
P. Panda
Keyword(s):  
Radiative Decay ◽  
Photon Emission ◽  
Decay Rates ◽  
Static Approximation ◽  
Radiative Transitions ◽  
Model Predictions ◽  
Decay Widths ◽  
Experimental Values ◽  
Conventional Picture ◽  
Good Agreement

We perform a static calculation of decay widths for radiative transitions of mesons within the conventional picture of photon emission by a confined quark and (or) antiquark. As the calculation based on the moderate momentum transfer allows some amount of uncertainty to creep into the model predictions, we further apply the model for a more realistic calculation beyond the static approximation, taking into account some momentum-dependent effects due to the recoil of the daughter meson. The results obtained for the decay widths of radiative transitions of light mesons are improved and are in good agreement with the experimental values. The predictions on the decay rates of heavy mesons are also affected and are comparable with those of other model predictions.

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