STRONG RADIATIVE-CORRECTIONS TO ANNIHILATIONS OF QUARKONIA IN QCD

被引：192

作者：

BARBIERI, R

CURCI, G

DEMILIO, E

REMIDDI, E

机构：

[1] UNIV GENEVA,DEPT PHYS,CH-1211 GENEVA 4,SWITZERLAND

[2] CERN,CH-1211 GENEVA 23,SWITZERLAND

[3] UNIV BOLOGNA,IST FIS,I-40126 BOLOGNA,ITALY

[4] IST NAZL FIZ NUCL,PIZA,ITALY

[5] IST NAZL FIZ NUCL,BOLOGNA,ITALY

来源：

NUCLEAR PHYSICS B | 1979年 / 154卷 / 03期

关键词：

D O I：

10.1016/0550-3213(79)90047-6

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The significance of the lowest-order QCD prediction for the annihilations of heavy quark-antiquark bound states is analyzed. The calculation of the leading strong radiative corrections to the hadronic versus electromagnetic annihilation rate ratio R of pseudoscalar quarkonium is presented. In terms of the coupling constant αs, as defined in the minimal subtraction scheme, we find R = R(0)(1 + 22.14αs/π). The physical significance of this result is discussed by comparing it with the calculation of the non-leading effects in αs on the scaling violations in deep inelastic scattering. A bad convergence of the relative perturbative expansion is found, demanding for its safe application a value of the relevant momentum definitely higher than that of charmonium physics. © 1979.

引用

页码：535 / 546

页数：12

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