Factorized power expansion for high- heavy quarkonium production
Abstract
In this study, we show that when the factorized cross section for heavy quarkonium production includes next-to-leading power contributions associated with the production of the heavy quark pair at short distances, it naturally reproduces all high pT results calculated in nonrelativistic QCD (NRQCD) factorization. This extended formalism requires fragmentation functions for heavy quark pairs, as well as for light partons. When these fragmentation functions are themselves calculated using NRQCD, we find that two of the four leading NRQCD production channels, ³S[1]1 and ¹S[8]0, are dominated by the next-to-leading power contributions for a very wide pT range. The large next-to-leading order corrections of NRQCD are absorbed into the leading order of the first power correction. The impact of this finding on heavy quarkonium production and its polarization is discussed.
- Authors:
-
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States)
- Stony Brook Univ., Stony Brook, NY (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1176990
- Alternate Identifier(s):
- OSTI ID: 1180901
- Report Number(s):
- BNL-107323-2015-JA
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: KB0301020
- Grant/Contract Number:
- SC00112704; AC02-05CH11231; AC02-98CH10886
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 113; Journal Issue: 14; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Ma, Yan -Qing, Qiu, Jian -Wei, Sterman, George, and Zhang, Hong. Factorized power expansion for high-pT heavy quarkonium production. United States: N. p., 2014.
Web. doi:10.1103/PhysRevLett.113.142002.
Ma, Yan -Qing, Qiu, Jian -Wei, Sterman, George, & Zhang, Hong. Factorized power expansion for high-pT heavy quarkonium production. United States. https://doi.org/10.1103/PhysRevLett.113.142002
Ma, Yan -Qing, Qiu, Jian -Wei, Sterman, George, and Zhang, Hong. Thu .
"Factorized power expansion for high-pT heavy quarkonium production". United States. https://doi.org/10.1103/PhysRevLett.113.142002. https://www.osti.gov/servlets/purl/1176990.
@article{osti_1176990,
title = {Factorized power expansion for high-pT heavy quarkonium production},
author = {Ma, Yan -Qing and Qiu, Jian -Wei and Sterman, George and Zhang, Hong},
abstractNote = {In this study, we show that when the factorized cross section for heavy quarkonium production includes next-to-leading power contributions associated with the production of the heavy quark pair at short distances, it naturally reproduces all high pT results calculated in nonrelativistic QCD (NRQCD) factorization. This extended formalism requires fragmentation functions for heavy quark pairs, as well as for light partons. When these fragmentation functions are themselves calculated using NRQCD, we find that two of the four leading NRQCD production channels, ³S[1]1 and ¹S[8]0, are dominated by the next-to-leading power contributions for a very wide pT range. The large next-to-leading order corrections of NRQCD are absorbed into the leading order of the first power correction. The impact of this finding on heavy quarkonium production and its polarization is discussed.},
doi = {10.1103/PhysRevLett.113.142002},
journal = {Physical Review Letters},
number = 14,
volume = 113,
place = {United States},
year = {Thu Oct 02 00:00:00 EDT 2014},
month = {Thu Oct 02 00:00:00 EDT 2014}
}
Web of Science
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Works referencing / citing this record:
Relativistic effect of J/𝜓 hadroproduction in large pT region
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