论文标题
在LHC上与爱丽丝高度多样性PP碰撞中的光味强子产生的拓扑研究
Topological studies of light-flavor hadron production in high multiplicity pp collisions with ALICE at the LHC
论文作者
论文摘要
高多重PP和P-A碰撞的最新测量表明，这些小型碰撞系统表现出类似集体的行为，以前只有在重型离子碰撞中才能实现。为了了解这些意外现象的起源，可以利用事件形状可观察到的形状，因为它们是解开颗粒产生的柔软和努力贡献的强大工具。在这里，在不同类别的未加权横向球体（$ s _ {\ rm 0}^{p _ {\ rm t} = 1} $）的结果中，浅色横向球的产生结果（$ s _ {\ rm 0}^{提出了用爱丽丝探测器测量的$ \ textrm {tev} $。还出现了并与其他QCD QCD启动的Monte Carlo事件生成器进行比较。带电的粒子平均横向动量（$ \ langle p _ {\ rm t} \ rangle $）和$ s _ {\ rm 0}^{p _ {\ rm t} = 1} $也在讨论。此外，在$ \ sqrt {s _ {\ rm nn}} $ = 5.02 TEV中，PP，P-PB和PB-PB碰撞中带电的粒子产生的系统大小依赖性。最后，在相同的方法中，我们提出了小型碰撞系统中的喷气淬火行为的搜索。
Recent measurements in high-multiplicity pp and p-A collisions have revealed that these small collision systems exhibit collective-like behaviour, formerly thought to be achievable only in heavy-ion collisions. To understand the origins of these unexpected phenomena, event shape observables can be exploited, as they serve as a powerful tool to disentangle soft and hard contributions to particle production. Here, results on the production of light flavor hadrons for different classes of unweighted transverse spherocity ($S_{\rm 0}^{p_{\rm T}= 1}$) and relative transverse activity ($R_{\rm{T}}$) in high multiplicity pp collisions at $\sqrt{s}$ = 13 $\textrm{TeV}$ measured with the ALICE detector are presented. Hadron-to-pion ratios in different $S_{\rm 0}^{p_{\rm T}= 1}$ and $R_{\rm{T}}$ classes are also presented and compared with state-of-the-art QCD-inspired Monte Carlo event generators. The evolution of charged particle average transverse momentum ($\langle p_{\rm T}\rangle$) with multiplicity and $S_{\rm 0}^{p_{\rm T}= 1}$ is also discussed. In addition, the system size dependence of charged particle production in pp, p-Pb, and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$= 5.02 TeV is presented. Finally, within the same approach, we present a search for jet quenching behavior in small collision systems.
