Speaker
Description
The unique capabilities of the Relativistic Heavy Ion Collider (RHIC) offer ideal opportunities to explore a wide range of topics in spin physics through polarized proton collisions. The STAR detectors in the forward region (approximately $2.5 < \eta < 4$) enable investigations in forward spin physics, providing deeper insights into fundamental Quantum Chromodynamics (QCD).
This overview talk will first encompass recent highlights in the forward region with the transversely polarized proton beam from the STAR experiment. It will begin with the multi-dimensional studies for transverse single-spin asymmetry ($A_{N}$) for inclusive $\pi^{0}$ and electromagnetic jet at forward rapidity, offering insights into the origin of the sizeable $A_{N}$ observed in polarized $p + p$ collisions. Additionally, the investigation of isolated $\pi^{0}$ will be discussed, providing indication that the large $A_{N}$ might originate from diffractive processes. Consequently, this talk will also cover diffractive $A_{N}$ and discuss its contribution to the inclusive $A_{N}$.
This talk will then delve into the unpolarized physics, focusing on the two-particle azimuthal correlation which has been proposed to be one of the efficient channels to access the underlying gluon dynamics. We will present the recent results of forward di-hadron correlation studies in $p + p$ and $p + A$ collisions.
The STAR Forward Upgrade, completed in 2022, enhances the tracking and calorimeter systems in the forward rapidity region. These upgrades have been successfully utilized for data taking with $p + p$ and Au + Au collisions, providing unique kinematic coverage for various physics measurements. This talk will discuss the STAR Forward Upgrade and its new physics opportunities.
Details
Speaker: Xilin Liang
Institution: University of California, Riverside (US)
| Internet talk | No |
|---|---|
| Is this an abstract from experimental collaboration? | Yes |
| Name of experiment and experimental site | STAR Collaboration, BNL, US |
| Is the speaker for that presentation defined? | Yes |
