Speaker
Description
A significant transport of net-baryon number from beam rapidity to mid-rapidity, known as baryon stopping, has been observed in heavy-ion collisions at RHIC energies.
Understanding this stopping is crucial, as it not only shapes the longitudinal structure of the produced matter but also may provides insight into baryon junction dynamics.
Motivated by the Multi-Chain Model, we construct net-baryon and net-proton rapidity distributions using a Monte Carlo Glauber approach with an exponential rapidity-loss mechanism assigned for each nucleon-nucleon collision.
This allows for a rapidity scan of the system and provides a framework to explore how baryon stopping might affect cumulant observables ($C_1 \sim C_4$) and their ratios.
We discuss the possibility that baryon stopping could induce nontrivial rapidity dependence in cumulants, offering a noncritical baseline for interpreting multiplicity fluctuations, and examine its sensitivity to both the rapidity acceptance and the choice of rapidity bin widths.
Such a study provides a noncritical baseline for interpreting multiplicity fluctuations and may guide experimental analyses in the forward-rapidity region, complementing rapidity-dependent investigations in the search for signals of the QCD phase transition or QCD critical point.
| 请选择分会 | 高能重离子物理 |
|---|
