Abstract
In the relativistic quark model formulated in the infinite momentum frame a self-consistent description has been obtained for a pion, {omega}- and {rho}-mesons, K- and K{sup *}-mesons. The role of the relativistic effects in the description of radiative, leptonic and semileptonic decays of heavy quarkonia is studied. The relativistic effects are shown to lead to noticeable suppression of the {psi} {yields} {eta}{sub c}{gamma} decay width predicted in nonrelativistic approximation; however the discrepancy with the experimental data still remains. Predictions are obtained for amplitudes of D {yields} {mu}{nu}, D{sub s} {yields} {mu}{nu}, B {yields} {mu}{nu}, D {yields} {pi}e{nu} and D {yields} Ke{nu} decays. The relativistic effects are shown to lead to strong supperssion of coupling constants of D {yields} {mu}{nu}, D{sub s} {yields} {mu}{nu}, B {yields} {mu}{nu} decays. The prediction obtained for the coupling constant F{sub D} = 230-270 MeV is close to the boundary of available experimental restriction. 46 refs.; 2 figs.; 5 tabs.
Citation Formats
Aznauryan, I G, Esajbegyan, S V, Oganessyan, K A, and Ter-Isaakyan, N L.
Mesons in relativistic quark model.
USSR: N. p.,
1989.
Web.
Aznauryan, I G, Esajbegyan, S V, Oganessyan, K A, & Ter-Isaakyan, N L.
Mesons in relativistic quark model.
USSR.
Aznauryan, I G, Esajbegyan, S V, Oganessyan, K A, and Ter-Isaakyan, N L.
1989.
"Mesons in relativistic quark model."
USSR.
@misc{etde_10118466,
title = {Mesons in relativistic quark model}
author = {Aznauryan, I G, Esajbegyan, S V, Oganessyan, K A, and Ter-Isaakyan, N L}
abstractNote = {In the relativistic quark model formulated in the infinite momentum frame a self-consistent description has been obtained for a pion, {omega}- and {rho}-mesons, K- and K{sup *}-mesons. The role of the relativistic effects in the description of radiative, leptonic and semileptonic decays of heavy quarkonia is studied. The relativistic effects are shown to lead to noticeable suppression of the {psi} {yields} {eta}{sub c}{gamma} decay width predicted in nonrelativistic approximation; however the discrepancy with the experimental data still remains. Predictions are obtained for amplitudes of D {yields} {mu}{nu}, D{sub s} {yields} {mu}{nu}, B {yields} {mu}{nu}, D {yields} {pi}e{nu} and D {yields} Ke{nu} decays. The relativistic effects are shown to lead to strong supperssion of coupling constants of D {yields} {mu}{nu}, D{sub s} {yields} {mu}{nu}, B {yields} {mu}{nu} decays. The prediction obtained for the coupling constant F{sub D} = 230-270 MeV is close to the boundary of available experimental restriction. 46 refs.; 2 figs.; 5 tabs.}
place = {USSR}
year = {1989}
month = {Dec}
}
title = {Mesons in relativistic quark model}
author = {Aznauryan, I G, Esajbegyan, S V, Oganessyan, K A, and Ter-Isaakyan, N L}
abstractNote = {In the relativistic quark model formulated in the infinite momentum frame a self-consistent description has been obtained for a pion, {omega}- and {rho}-mesons, K- and K{sup *}-mesons. The role of the relativistic effects in the description of radiative, leptonic and semileptonic decays of heavy quarkonia is studied. The relativistic effects are shown to lead to noticeable suppression of the {psi} {yields} {eta}{sub c}{gamma} decay width predicted in nonrelativistic approximation; however the discrepancy with the experimental data still remains. Predictions are obtained for amplitudes of D {yields} {mu}{nu}, D{sub s} {yields} {mu}{nu}, B {yields} {mu}{nu}, D {yields} {pi}e{nu} and D {yields} Ke{nu} decays. The relativistic effects are shown to lead to strong supperssion of coupling constants of D {yields} {mu}{nu}, D{sub s} {yields} {mu}{nu}, B {yields} {mu}{nu} decays. The prediction obtained for the coupling constant F{sub D} = 230-270 MeV is close to the boundary of available experimental restriction. 46 refs.; 2 figs.; 5 tabs.}
place = {USSR}
year = {1989}
month = {Dec}
}