NLO production and decay of quarkonium

被引：278

作者：

Petrelli, A

Cacciari, M

Greco, M

Maltoni, F

Mangano, ML

机构：

[1] Ist Nazl Fis Nucl, Pisa, Italy

[2] DESY, D-2000 Hamburg, Germany

[3] CERN, Div TH, CH-1211 Geneva, Switzerland

[4] Univ Roma 3, Dipartimento Fis E Amaldi, Rome, Italy

[5] INFN, Lab Nazl Frascati, Frascati, Italy

[6] Univ Pisa, Dipartimento Fis, Pisa, Italy

来源：

NUCLEAR PHYSICS B | 1998年 / 514卷 / 1-2期

关键词：

heavy quarks; quarkonium; radiative corrections; hadroproduction; QCD;

D O I：

10.1016/S0550-3213(97)00801-8

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：

We present a calculation of next-to-leading order (NLO) QCD corrections to total hadronic production cross sections and to light-hadron-decay rates of heavy quarkonium states. Both colour-singlet and colour-octet contributions are included. We discuss in detail the use of covariant projectors in dimensional regularization, the structure of soft-gluon emission and the overall finiteness of radiative corrections. We compare our approach with the NLO version of the threshold expansion technique recently introduced by Braaten and Chen. Most of the results presented here are new. Others represent the first independent reevaluation of calculations already known in the literature. In this case a comparison with previous findings is reported. (C) 1998 Elsevier Science B.V.

引用

页码：245 / 309

页数：65

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