Factorized power expansion for high-pT heavy quarkonium production

Ma, Yan -Qing; Qiu, Jian -Wei; Sterman, George; Zhang, Hong

doi:10.1103/PhysRevLett.113.142002

Title: Factorized power expansion for high- $p_{T}$ heavy quarkonium production

Journal Article · Thu Oct 02 00:00:00 EDT 2014 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.113.142002· OSTI ID:1176990

Ma, Yan -Qing ^[1]; Qiu, Jian -Wei ^[2]; Sterman, George ^[3]; Zhang, Hong ^[3]

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)

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 p_T 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 p_T 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.

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Research Organization:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC00112704; AC02-05CH11231; AC02-98CH10886

OSTI ID:: 1176990

Alternate ID(s):: OSTI ID: 1180901

Report Number(s):: BNL-107323-2015-JA; PRLTAO; R&D Project: KB0301020

Journal Information:: Physical Review Letters, Vol. 113, Issue 14; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 24 works

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Relativistic effect of J/𝜓 hadroproduction in large pT region Li, Rong; Chen, An-Ping; Huang, Jing-Kai Journal of High Energy Physics, Vol. 2019, Issue 10 https://doi.org/10.1007/jhep10(2019)210	journal	October 2019
Photoproduction of doubly heavy baryon at the ILC Chen, Gu; Wu, Xing-Gang; Sun, Zhan Journal of High Energy Physics, Vol. 2014, Issue 12 https://doi.org/10.1007/jhep12(2014)018	journal	December 2014
Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions Andronic, A.; Arleo, F.; Arnaldi, R. The European Physical Journal C, Vol. 76, Issue 3 https://doi.org/10.1140/epjc/s10052-015-3819-5	journal	February 2016
Deciphering the $X(3872)$ via its polarization in prompt production at the CERN LHC Butenschoen, Mathias; He, Zhi-Guo; Kniehl, Bernd A. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2019-03328	text	January 2019
Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions Andronic, A.; Arleo, F.; Arnaldi, R. arXiv https://doi.org/10.48550/arxiv.1506.03981	text	January 2015

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