Multiparticle production at mid-rapidity in the color-glass condensate

Mauricio Martinez (Department of Physics, North Carolina State University, Raleigh, NC, 27695, U.S.A.) ; Matthew Sievert (Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, U.S.A.) ; Douglas Wertepny (Departamento de Física de Partículas and IGFAE, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15782, Spain)

In this paper, we compute a number of cross sections for the production of multiple particles at mid-rapidity in the semi-dilute / dense regime of the color-glass condensate (CGC) effective field theory. In particular, we present new results for the production of two quark-antiquark pairs (whether the same or different flavors) and for the production of one quark-antiquark pair and a gluon. We also demonstrate the existence of a simple mapping which transforms the cross section to produce a quark-antiquark pair into the corresponding cross section to produce a gluon, which we use to obtain various results and to cross-check them against the literature. We also discuss hadronization effects in the heavy flavor sector, writing explicit expressions for the production of various combinations of D and D ¯ $$ \overline{D} $$ mesons, J/ψ mesons, and light hadrons. The various multiparticle cross sections presented here contain a wealth of information and can be used to study heavy flavor production, charge-dependent correlations, and “collective” flow phenomena arising from initial-state dynamics.

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      "source": "Springer", 
      "value": "In this paper, we compute a number of cross sections for the production of multiple particles at mid-rapidity in the semi-dilute / dense regime of the color-glass condensate (CGC) effective field theory. In particular, we present new results for the production of two quark-antiquark pairs (whether the same or different flavors) and for the production of one quark-antiquark pair and a gluon. We also demonstrate the existence of a simple mapping which transforms the cross section to produce a quark-antiquark pair into the corresponding cross section to produce a gluon, which we use to obtain various results and to cross-check them against the literature. We also discuss hadronization effects in the heavy flavor sector, writing explicit expressions for the production of various combinations of D and   <math> <mover> <mi>D</mi> <mo>\u00af</mo> </mover> </math>  $$ \\overline{D} $$  mesons, J/\u03c8 mesons, and light hadrons. The various multiparticle cross sections presented here contain a wealth of information and can be used to study heavy flavor production, charge-dependent correlations, and \u201ccollective\u201d flow phenomena arising from initial-state dynamics."
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Published on:
07 May 2019
Publisher:
Springer
Published in:
Journal of High Energy Physics , Volume 2019 (2019)
Issue 2
Pages 1-44
DOI:
https://doi.org/10.1007/JHEP02(2019)024
arXiv:
1808.04896
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

Fulltext files: