Direct quarkonium-plus-gluon production in DIS in the color glass condensate

A bstract We compute the differential cross-section for direct quarkonium production accompanied by a gluon in high-energy deep inelastic scattering (DIS) at small- x . We employ the Non-Relativistic QCD factorization framework, focusing on the S -wave contribution to the formation of the quarkonium...

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Bibliographic Details
Published in:The journal of high energy physics 2024-03, Vol.2024 (3), p.27-51, Article 27
Main Authors: Kang, Zhong-Bo, Li, Emilie, Salazar, Farid
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Color
Condensates
Deep Inelastic Scattering
Deep Inelastic Scattering or Small-x Physics
Elementary Particles
Field theory
Gluons
High Energy Physics - Phenomenology
Inelastic scattering
Integrals
Kinematics
Nuclear Theory
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Quarkonium
Quarks
Regular Article - Theoretical Physics
Relativity Theory
S waves
Small-x Physics
String Theory
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Summary:A bstract We compute the differential cross-section for direct quarkonium production accompanied by a gluon in high-energy deep inelastic scattering (DIS) at small- x . We employ the Non-Relativistic QCD factorization framework, focusing on the S -wave contribution to the formation of the quarkonium, and including both color singlet and octet contributions. Our short distance coefficients for the production of the heavy quark pair are obtained within the Color Glass Condensate effective field theory. Our results pave the way towards the next-to-leading order computation of direct quarkonium in DIS, as well as the study of azimuthal correlations of direct quarkonium and jet.
ISSN:1029-8479
1126-6708
1029-8479
DOI:10.1007/JHEP03(2024)027