Inclusive Hadroproduction of P-Wave Heavy Quarkonia in Potential Nonrelativistic QCD

被引：14

作者：

Brambilla, Nora ^{[1
,2
]}

Chung, Hee Sok ^{[1
]}

Vairo, Antonio ^{[1
]}

机构：

[1] Tech Univ Munich, Phys Dept, James Franck Str 1, D-85748 Garching, Germany

[2] Tech Univ Munich, Inst Adv Study, Lichtenbergstr 2 A, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 126卷 / 08期

基金：

美国国家科学基金会;

关键词：

NRQCD;

D O I：

10.1103/PhysRevLett.126.082003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We compute the color-singlet and color-octet nonrelativistic QCD (NRQCD) long-distance matrix elements for inclusive production of P-wave quarkonia in the framework of potential NRQCD. In this way, the color-octet NRQCD long-distance matrix element can be determined without relying on measured cross section data, which has not been possible so far. We obtain inclusive cross sections of chi(cJ) and chi(bJ) at the LHC, which are in good agreement with data. In principle, the formalism developed in this Letter can be applied to all inclusive production processes of heavy quarkonia.

引用

页数：6

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