English

Investigating the $p$-$\Omega$ Interaction and Correlation Functions

High Energy Physics - Phenomenology 2025-01-03 v2 Nuclear Theory

Abstract

Motivated by experimental measurements, we investigate the pp-Ω\Omega correlation functions and interactions on the basis of a quark model. By solving the inverse scattering problem with channel coupling, we renormalize the coupling to other channels into an effective single-channel pp-Ω\Omega potentials. The effects of Coulomb interaction and spin-averaging are also discussed. According to our results, the depletion of the pp-Ω\Omega correlation functions, which is attributed to the JP=2+J^P = 2^+ bound state not observed in the ALICE Collaboration's measurements [Nature \textbf{588}, 232 (2020)], can be explained by the contribution of the attractive JP=1+J^P = 1^+ component in spin-averaging. So far, we have provided a consistent description of the pp-Ω\Omega system from the perspective of the quark model, including the energy spectrum, scattering phase shifts, and correlation functions. The existence of the pp-Ω\Omega bound state has been supported by all three aspects. Additionally, a sign of the pp-Ω\Omega correlation function's subtle sub-unity part can be seen in experimental measurements, which warrants more precise verification in the future.

Keywords

Cite

@article{arxiv.2408.15493,
  title  = {Investigating the $p$-$\Omega$ Interaction and Correlation Functions},
  author = {Ye Yan and Qi Huang and Youchang Yang and Hongxia Huang and Jialun Ping},
  journal= {arXiv preprint arXiv:2408.15493},
  year   = {2025}
}

Comments

12 pages, 6 figures

R2 v1 2026-06-28T18:26:06.812Z