Heavy quarkonium production in pQCD factorization

Zhong Bo Kang; Yan Qing Ma; Jian Wei Qiu; George Sterman

Heavy quarkonium production in pQCD factorization

Zhong Bo Kang
, Yan Qing Ma
, Jian Wei Qiu
, George Sterman

Institute for Theoretical Physics

Los Alamos National Laboratory Theoretical Division
Brookhaven National Laboratory
Stony Brook University

Research output: Contribution to journal › Conference article › peer-review

Abstract

We present a factorization formalism for inclusive production of heavy quarkonia of large trans-verse momentum, pT at collider energies, including leading power (LP) and next-To-leading pow-er (NLP) behavior in pT . We demonstrate that both LP and NLP contributions can be factorized in terms of perturbatively calculable short-distance partonic coefficient functions and universal non-perturbative fragmentation functions, and derive the evolution equations that are implied by the factorization. We evaluate the first non-Trivial order of evolution kernels for all relevant frag-mentation functions, and discuss the role of NLP contributions.

Original language	English
Journal	Proceedings of Science
State	Published - 2013
Event	15th International Conference on Hadron Spectroscopy, Hadron 2013 - Nara, Japan Duration: Nov 4 2013 → Nov 8 2013

Cite this

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title = "Heavy quarkonium production in pQCD factorization",

abstract = "We present a factorization formalism for inclusive production of heavy quarkonia of large trans-verse momentum, pT at collider energies, including leading power (LP) and next-To-leading pow-er (NLP) behavior in pT . We demonstrate that both LP and NLP contributions can be factorized in terms of perturbatively calculable short-distance partonic coefficient functions and universal non-perturbative fragmentation functions, and derive the evolution equations that are implied by the factorization. We evaluate the first non-Trivial order of evolution kernels for all relevant frag-mentation functions, and discuss the role of NLP contributions.",

author = "Kang, \{Zhong Bo\} and Ma, \{Yan Qing\} and Qiu, \{Jian Wei\} and George Sterman",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 15th International Conference on Hadron Spectroscopy, Hadron 2013 ; Conference date: 04-11-2013 Through 08-11-2013",

year = "2013",

language = "English",

journal = "Proceedings of Science",

issn = "1824-8039",

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TY - JOUR

T1 - Heavy quarkonium production in pQCD factorization

AU - Kang, Zhong Bo

AU - Ma, Yan Qing

AU - Qiu, Jian Wei

AU - Sterman, George

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2013

Y1 - 2013

N2 - We present a factorization formalism for inclusive production of heavy quarkonia of large trans-verse momentum, pT at collider energies, including leading power (LP) and next-To-leading pow-er (NLP) behavior in pT . We demonstrate that both LP and NLP contributions can be factorized in terms of perturbatively calculable short-distance partonic coefficient functions and universal non-perturbative fragmentation functions, and derive the evolution equations that are implied by the factorization. We evaluate the first non-Trivial order of evolution kernels for all relevant frag-mentation functions, and discuss the role of NLP contributions.

AB - We present a factorization formalism for inclusive production of heavy quarkonia of large trans-verse momentum, pT at collider energies, including leading power (LP) and next-To-leading pow-er (NLP) behavior in pT . We demonstrate that both LP and NLP contributions can be factorized in terms of perturbatively calculable short-distance partonic coefficient functions and universal non-perturbative fragmentation functions, and derive the evolution equations that are implied by the factorization. We evaluate the first non-Trivial order of evolution kernels for all relevant frag-mentation functions, and discuss the role of NLP contributions.

UR - https://www.scopus.com/pages/publications/85019524788

M3 - Conference article

AN - SCOPUS:85019524788

SN - 1824-8039

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 15th International Conference on Hadron Spectroscopy, Hadron 2013

Y2 - 4 November 2013 through 8 November 2013

ER -

Heavy quarkonium production in pQCD factorization

Abstract

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