Fragmentation, NRQCD and factorization in heavy quarkonium production

Gouranga C. Nayak; Jian Wei Qiu; George Sterman

doi:10.1063/1.2220338

Fragmentation, NRQCD and factorization in heavy quarkonium production

Gouranga C. Nayak
, Jian Wei Qiu
, George Sterman

Institute for Theoretical Physics

Stony Brook University
Iowa State University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

We discuss factorization in heavy quarkonium production in high energy collisions using NRQCD. Infrared divergences at NNLO are not matched by conventional NRQCD matrix elements. However, we show that gauge invariance and factorization require that conventional NRQCD production matrix elements be modified to include Wilson lines or non-abelian gauge links. With this modification NRQCD factorization for heavy quarkonium production is restored at NNLO.

Original language	English
Title of host publication	PARTICLES AND NUCLEI
Subtitle of host publication	Seventeenth Internatinal Conference on Particles and Nuclei
Pages	610-612
Number of pages	3
DOIs	https://doi.org/10.1063/1.2220338
State	Published - 2006
Event	PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei - Santa Fe, NM, United States Duration: Oct 23 2005 → Oct 30 2005

Publication series

Name	AIP Conference Proceedings
Volume	842
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei
Country/Territory	United States
City	Santa Fe, NM
Period	10/23/05 → 10/30/05

Keywords

Factorization
Heavy quarkonium

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10.1063/1.2220338

Cite this

@inproceedings{5d2a88b87de44964a40de4cfa06e0764,

title = "Fragmentation, NRQCD and factorization in heavy quarkonium production",

abstract = "We discuss factorization in heavy quarkonium production in high energy collisions using NRQCD. Infrared divergences at NNLO are not matched by conventional NRQCD matrix elements. However, we show that gauge invariance and factorization require that conventional NRQCD production matrix elements be modified to include Wilson lines or non-abelian gauge links. With this modification NRQCD factorization for heavy quarkonium production is restored at NNLO.",

keywords = "Factorization, Heavy quarkonium",

author = "Nayak, \{Gouranga C.\} and Qiu, \{Jian Wei\} and George Sterman",

year = "2006",

doi = "10.1063/1.2220338",

language = "English",

isbn = "0735403384",

series = "AIP Conference Proceedings",

pages = "610--612",

booktitle = "PARTICLES AND NUCLEI",

note = "PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei ; Conference date: 23-10-2005 Through 30-10-2005",

}

Nayak, GC, Qiu, JW & Sterman, G 2006, Fragmentation, NRQCD and factorization in heavy quarkonium production. in PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei. AIP Conference Proceedings, vol. 842, pp. 610-612, PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei, Santa Fe, NM, United States, 10/23/05. https://doi.org/10.1063/1.2220338

TY - GEN

T1 - Fragmentation, NRQCD and factorization in heavy quarkonium production

AU - Nayak, Gouranga C.

AU - Qiu, Jian Wei

AU - Sterman, George

PY - 2006

Y1 - 2006

N2 - We discuss factorization in heavy quarkonium production in high energy collisions using NRQCD. Infrared divergences at NNLO are not matched by conventional NRQCD matrix elements. However, we show that gauge invariance and factorization require that conventional NRQCD production matrix elements be modified to include Wilson lines or non-abelian gauge links. With this modification NRQCD factorization for heavy quarkonium production is restored at NNLO.

AB - We discuss factorization in heavy quarkonium production in high energy collisions using NRQCD. Infrared divergences at NNLO are not matched by conventional NRQCD matrix elements. However, we show that gauge invariance and factorization require that conventional NRQCD production matrix elements be modified to include Wilson lines or non-abelian gauge links. With this modification NRQCD factorization for heavy quarkonium production is restored at NNLO.

KW - Factorization

KW - Heavy quarkonium

UR - https://www.scopus.com/pages/publications/33846389169

U2 - 10.1063/1.2220338

DO - 10.1063/1.2220338

M3 - Conference contribution

AN - SCOPUS:33846389169

SN - 0735403384

SN - 9780735403383

T3 - AIP Conference Proceedings

SP - 610

EP - 612

BT - PARTICLES AND NUCLEI

T2 - PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei

Y2 - 23 October 2005 through 30 October 2005

ER -

Fragmentation, NRQCD and factorization in heavy quarkonium production

Abstract

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Keywords

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