Leptonic widths of high excitations in heavy quarkonia

A.M. Badalian; A.I. Veselov; B.L.G. Bakker

doi:10.1088/0954-3899/31/5/012

Leptonic widths of high excitations in heavy quarkonia

A.M. Badalian, A.I. Veselov, B.L.G. Bakker

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Agreement with the measured electronic widths of the resonances ψ(4040), ψ(4415) and Υ(11 019) is shown to be obtained if two effects are taken into account: (i) a flattening of the confining potential at distances r ≳ 1.2 fm, which gives a drop in the leptonic widths of high excitations of about 10-20%, but does not affect low-lying states, and (ii) switching off the gluon-exchange (GE) interaction for those nS states which have a rms radius r

Original language	English
Pages (from-to)	417-425
Journal	Journal of Physics G. Nuclear and Particle Physics
Volume	31
Issue number	5
DOIs	https://doi.org/10.1088/0954-3899/31/5/012
Publication status	Published - 2005

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Times Cited: 13

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10.1088/0954-3899/31/5/012

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title = "Leptonic widths of high excitations in heavy quarkonia",

abstract = "Agreement with the measured electronic widths of the resonances ψ(4040), ψ(4415) and Υ(11 019) is shown to be obtained if two effects are taken into account: (i) a flattening of the confining potential at distances r ≳ 1.2 fm, which gives a drop in the leptonic widths of high excitations of about 10-20%, but does not affect low-lying states, and (ii) switching off the gluon-exchange (GE) interaction for those nS states which have a rms radius r",

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T1 - Leptonic widths of high excitations in heavy quarkonia

AU - Badalian, A.M.

AU - Veselov, A.I.

AU - Bakker, B.L.G.

N1 - Times Cited: 13

PY - 2005

Y1 - 2005

N2 - Agreement with the measured electronic widths of the resonances ψ(4040), ψ(4415) and Υ(11 019) is shown to be obtained if two effects are taken into account: (i) a flattening of the confining potential at distances r ≳ 1.2 fm, which gives a drop in the leptonic widths of high excitations of about 10-20%, but does not affect low-lying states, and (ii) switching off the gluon-exchange (GE) interaction for those nS states which have a rms radius r

AB - Agreement with the measured electronic widths of the resonances ψ(4040), ψ(4415) and Υ(11 019) is shown to be obtained if two effects are taken into account: (i) a flattening of the confining potential at distances r ≳ 1.2 fm, which gives a drop in the leptonic widths of high excitations of about 10-20%, but does not affect low-lying states, and (ii) switching off the gluon-exchange (GE) interaction for those nS states which have a rms radius r

U2 - 10.1088/0954-3899/31/5/012

DO - 10.1088/0954-3899/31/5/012

M3 - Article

SN - 0954-3899

VL - 31

SP - 417

EP - 425

JO - Journal of Physics G. Nuclear and Particle Physics

JF - Journal of Physics G. Nuclear and Particle Physics

IS - 5

ER -

Leptonic widths of high excitations in heavy quarkonia

Abstract

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