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DOE OSTI · 2484209

Azimuthal angular correlation of J/ψ plus jet production at the electron-ion collider

Maxia, Luca [Univ. of Groningen (Netherlands). Van Swinderen Institute for Particle Physics and Gravity] (ORCID:0000000306471033)·Yuan, Feng [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000199793853)
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Abstract

By investigating the soft gluon radiation in the J/ψ plus jet photoproduction at the electron-ion collider (EIC), we demonstrate that the azimuthal angular correlations between the leading jet and heavy quarkonium provide a unique probe to the production mechanism of the latter. In particular, a significant cos⁡(φ) asymmetry is found for the color-singlet channel, whereas it vanishes or has an opposite sign for color-octet production, depending on the jet transverse momentum. Numerical results of cos⁡(φ) and cos⁡(2⁢φ) asymmetries employing both the color-singlet model and the nonrelativistic QCD approach are presented for typical kinematics at the future EIC.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSNonrelativistic QCDQCD phenomenologyQuantum chromodynamicsQuark & gluon jetsQuarkonia

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Maxia, Luca [Univ. of Groningen (Netherlands). Van Swinderen Institute for Particle Physics and Gravity] (ORCID:0000000306471033), Yuan, Feng [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000199793853). 2024-12-30. Azimuthal angular correlation of J/ψ plus jet production at the electron-ion collider. https://doi.org/10.1103/physrevd.110.114042

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