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Bibliographic Details
Main Authors: Zhang, Li'Ang, Li, Hongcan, Han, Junyi, Wang, Yaping, Wu, Junlin, Xie, Guannan, Yong, Gao-Chan
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2511.17273
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Table of Contents:
  • The light nuclei yields and yield ratios, as sensitive probes of the QCD phase transition, have been precisely measured at various collision energies.However, due to limited detector acceptance, the full $p_{\rm T}$ integral yield often requires extrapolation of the measured transverse momentum spectra to the unmeasured low-$p_{\rm T}$ region via functional fitting.Simulations with the AMPT-HC transport model and an after-burner coalescence approach indicate a significant low-$p_{\rm T}$ enhancement in peripheral collisions or forward rapidities, primarily originating from spectator nucleons.Consequently, conventional extrapolations tend to underestimate the true light nuclei yields.