| Issue |
EPJ Web Conf.
Volume 296, 2024
30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2023)
|
|
|---|---|---|
| Article Number | 17002 | |
| Number of page(s) | 4 | |
| Section | UPC | |
| DOI | https://doi.org/10.1051/epjconf/202429617002 | |
| Published online | 26 June 2024 | |
https://doi.org/10.1051/epjconf/202429617002
Entanglement-enabled spin interference in exclusive J/ψ photoproduction through ultra-peripheral collisions at STAR
Department of Physics, Kent State University, Kent, OH 44242, USA
* e-mail: ashikhep@gmail.com/asheikh2@kent.edu
Published online: 26 June 2024
In ultra-peripheral collisions (UPC), exclusive vector meson photoproduction, such as ρ0 and J/ψ, serves as a sensitive probe for studying the gluon structure in heavy nuclei. The linear polarization of the photons involved in these processes help to image the nucleus through the so-called entanglement-enabled spin interference in vector meson photoproductions. The photoproduced J/ψ has longer lifetime (2160 fm/c) and non-localized wave function which provides unique opportunity to study the entanglement between the photon and the Pomeron phases emitted from each nucleus. We present the first measurement of the interference pattern for the photoproduced J/ψ in Au+Au UPC at √sNN = 200 with the STAR experiment.
© The Authors, published by EDP Sciences, 2024
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