Title: Studies of jet quenching in O+O collisions at $\sqrt{s_{\rm NN}}$ = 200 GeV by STAR Show Chinese title

Title: $\sqrt{s_{\rm NN}}$ = 200 GeV 条件下通过 STAR 对 O+O 碰撞中喷注淬火的研究

Abstract: Jet quenching is a well-established probe of the QGP in large collision systems such as Au+Au and Pb+Pb, but is absent in smaller p+A collisions despite the presence of collectivity. This makes it important to study its dependence on system size. O+O collisions offer an ideal opportunity, bridging the gap between small and large systems. In these proceedings, we present the measurements of the following observables related to jet quenching: inclusive charged hadron $R_{\rm AA}$ and $R_{\rm CP}$ at high transverse momentum ($p_{\rm T}$), inclusive jet $R_{\rm CP}$, and semi-inclusive hadron+jet $I_{\rm CP}$, using O+O collisions data collected with the STAR detector in 2021 at $\sqrt{s_{\rm NN}} = 200$ GeV. For jet measurements, combinatorial background is subtracted based on the event mixing technique, while background fluctuations and detector effects are corrected via unfolding. Inclusive charged hadron and jet $R_{\rm CP}$ and h+jet $I_{\rm CP}$ are found to be below unity, indicating suppression relative to peripheral events. Show Chinese abstract

Abstract: 喷注淬火是大型碰撞系统如Au+Au和Pb+Pb中QGP的已建立探针，但在较小的p+A碰撞中尽管存在集体性却不存在。这使得研究其与系统大小的依赖关系变得重要。O+O碰撞提供了一个理想的机会，填补了小系统和大系统之间的空白。在这些论文中，我们展示了与喷注淬火相关的以下可观测量的测量结果：高横向动量（$p_{\rm T}$）下的包括带电介子$R_{\rm AA}$和$R_{\rm CP}$，包括喷注$R_{\rm CP}$，以及半包括介子+喷注$I_{\rm CP}$，使用2021年在$\sqrt{s_{\rm NN}} = 200$ GeV下用STAR探测器收集的O+O碰撞数据。对于喷注测量，基于事件混合技术减去组合背景，而背景波动和探测器效应则通过解卷积进行校正。 包含带电强子和喷注$R_{\rm CP}$和 h+喷注$I_{\rm CP}$被发现低于1，表明相对于边缘事件的抑制。