Document Type

Article

Publication Date

10-2018

DOI

10.1103/PhysRevD.98.074025

Publication Title

Physical Review D

Volume

98

Issue

7

Pages

074025 (13 pages)

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. Event engineering in this CGC+NRQCD framework reveals a very rapid growth in the fragmentation of the 3S1[8] state in rare events relative to minimum bias events.

Comments

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Original Publication Citation

Yan-Qing, M., Tribedy, P., Venugopalan, R., & Watanabe, K. (2018). Event engineering studies for heavy flavor production and hadronization in high multiplicity hadron-hadron and hadron-nucleus collisions. Physical Review D, 98(7), 074025. doi:10.1103/PhysRevD.98.074025

ORCID

0000-0002-7258-6966 (Watanabe)

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