Exclusive J/$\psi$ Detection and Physics with ECCE

Abstract

Exclusive heavy quarkonium photoproduction is one of the most popular processes in EIC, which has a large cross section and a simple final state. Due to the gluonic nature of the exchange Pomeron, this process can be related to the gluon distributions in the nucleus. The momentum transfer dependence of this process is sensitive to the interaction sites, which provides a powerful tool to probe the spatial distribution of gluons in the nucleus. Recently the problem of the origin of hadron mass has received lots of attention in determining the anomaly contribution $M_a$. The trace anomaly is sensitive to the gluon condensate, and exclusive production of quarkonia such as J/$\psi$ and ${\rm Y}$ can serve as a sensitive probe to constrain it. In this paper, we present the performance of the ECCE detector for exclusive J/$\psi$ detection and the capability of this process to investigate the above physics opportunities with ECCE.

11 pages, 14 figures, 1 table

References in corpus (8)

• Empirical Consequences of Emergent Mass
• Studying the P_c(4450) resonance in J/psi photoproduction off protons
• Theoretical study of elastic electron scattering off stable and exotic nuclei
• Accessing the real part of the forward $J/\psi$-p scattering amplitude from $J/\psi$ photo-production on protons around threshold
• A QCD analysis of near-threshold quarkonium leptoproduction at large photon virtualities
• Design and Simulated Performance of Calorimetry Systems for the ECCE Detector at the Electron Ion Collider
• Design of the ECCE Detector for the Electron Ion Collider
• Open Heavy Flavor Studies for the ECCE Detector at the Electron Ion Collider

Cited by in corpus (3)

• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• Exclusive Charmonium Production at the Electron-ion collider in China
• Determination of the HERA coherent diffractive $J/\psi$ production cross section via artificial neural network