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Title: Event engineering studies for heavy flavor production and hadronization in high multiplicity hadron-hadron and hadron-nucleus collisions

Abstract

Heavy flavor measurements in high multiplicity proton-proton and proton-nucleus collisions at collider energies enable unique insights into their production and hadronization mechanism because experimental and theoretical uncertainties cancel in ratios of their cross sections relative to minimum bias events. We explore such event engineering using the color glass condensate (CGC) effective field theory to compute short-distance charmonium cross sections. The CGC is combined with heavy-quark fragmentation functions to compute D-meson cross sections; for the J/ψ, hadronization is described employing nonrelativistic QCD (NRQCD) and an improved color evaporation model. Excellent agreement is found between the CGC computations and the LHC heavy flavor data in high multiplicity events. In conclusion, event engineering in this CGC þ NRQCD framework reveals a very rapid growth in the fragmentation of the 3S[8]1 state in rare events relative to minimum bias events.

Authors:
; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1479175
Alternate Identifier(s):
OSTI ID: 1478501; OSTI ID: 1479276
Report Number(s):
BNL-209200-2018-JAAM; JLAB-THY-18-2676; DOE/OR/23177-4395; arXiv:1803.11093
Journal ID: ISSN 2470-0010; PRVDAQ; 074025
Grant/Contract Number:  
AC05-06OR23177; FG02-97ER41028; SC0012704; SFB 1225
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Ma, Yan-Qing, Tribedy, Prithwish, Venugopalan, Raju, and Watanabe, Kazuhiro. Event engineering studies for heavy flavor production and hadronization in high multiplicity hadron-hadron and hadron-nucleus collisions. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.074025.
Ma, Yan-Qing, Tribedy, Prithwish, Venugopalan, Raju, & Watanabe, Kazuhiro. Event engineering studies for heavy flavor production and hadronization in high multiplicity hadron-hadron and hadron-nucleus collisions. United States. https://doi.org/10.1103/PhysRevD.98.074025
Ma, Yan-Qing, Tribedy, Prithwish, Venugopalan, Raju, and Watanabe, Kazuhiro. Fri . "Event engineering studies for heavy flavor production and hadronization in high multiplicity hadron-hadron and hadron-nucleus collisions". United States. https://doi.org/10.1103/PhysRevD.98.074025.
@article{osti_1479175,
title = {Event engineering studies for heavy flavor production and hadronization in high multiplicity hadron-hadron and hadron-nucleus collisions},
author = {Ma, Yan-Qing and Tribedy, Prithwish and Venugopalan, Raju and Watanabe, Kazuhiro},
abstractNote = {Heavy flavor measurements in high multiplicity proton-proton and proton-nucleus collisions at collider energies enable unique insights into their production and hadronization mechanism because experimental and theoretical uncertainties cancel in ratios of their cross sections relative to minimum bias events. We explore such event engineering using the color glass condensate (CGC) effective field theory to compute short-distance charmonium cross sections. The CGC is combined with heavy-quark fragmentation functions to compute D-meson cross sections; for the J/ψ, hadronization is described employing nonrelativistic QCD (NRQCD) and an improved color evaporation model. Excellent agreement is found between the CGC computations and the LHC heavy flavor data in high multiplicity events. In conclusion, event engineering in this CGC þ NRQCD framework reveals a very rapid growth in the fragmentation of the 3S[8]1 state in rare events relative to minimum bias events.},
doi = {10.1103/PhysRevD.98.074025},
journal = {Physical Review D},
number = 7,
volume = 98,
place = {United States},
year = {Fri Oct 26 00:00:00 EDT 2018},
month = {Fri Oct 26 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.98.074025

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Cited by: 36 works
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