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Mesons in relativistic quark model

Technical Report:

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.
Publication Date:
Dec 31, 1989
Product Type:
Technical Report
Report Number:
YERPHI-1185-62-89
Reference Number:
SCA: 662240; PA: AIX-23:017790; SN: 92000661536
Resource Relation:
Other Information: PBD: 1989
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; MESONS; QUARK MODEL; SEMILEPTONIC DECAY; QUARKONIUM; COUPLING CONSTANTS; DECAY AMPLITUDES; FEYNMAN DIAGRAM; FORM FACTORS; MEV RANGE 100-1000; PARTICLE DECAY; PARTICLE RADII; PARTICLE WIDTHS; RADIATIVE DECAY; THEORETICAL DATA; 662240; MODELS FOR STRONG INTERACTIONS
OSTI ID:
10118466
Research Organizations:
Erevanskij Fizicheskij Inst., Erevan (Armenia)
Country of Origin:
USSR
Language:
English
Other Identifying Numbers:
Other: ON: DE92617034; TRN: SU9110174017790
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
32 p.
Announcement Date:
Jun 30, 2005

Technical Report:

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}
}