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Extracting color octet NRQCD matrix elements from J/ψ production at the EIC

2021/02/28 by Daniël Boer, Cristian Pisano, Pieter Taels · 18 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Materials science #Matrix (chemical analysis) #Octet #Pair production #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #hep-ph

paper · pdf · doi:10.1103/physrevd.103.074012

published in Physical review. D/Physical review. D. 103(7) (American Physical Society) · 10 pages, 9 figures; some small additions to the text, corrections to eqs. 37-38, conclusions unchanged, matches version accepted by Physical Review D

openalex created_date 2021/02/15 · arxiv created 2021/03/29 · openalex publication_date 2021/04/14 · arxiv updated 2021/04/21 · openalex updated_date 2026/08/05

Abstract

Recently unpolarized and polarized J/\ensuremathψ(\mathrm\ensuremathΥ) production at the Electron-Ion Collider (EIC) has been proposed as a new way to extract two poorly known color-octet NRQCD long-distance matrix elements: ⟨0|O8^J/\ensuremathψ(1S0)|0⟩ and ⟨0|O8^J/\ensuremathψ(3P0)|0⟩. The proposed method is based on a comparison to open heavy-quark pair production ideally performed at the same kinematics. In this paper we analyze this proposal in more detail and provide predictions for the EIC based on the available determinations of the color-octet matrix elements. We also propose two additional methods that do not require comparison to open heavy-quark pair production.

Citations