论文标题
粒子的产生是基本事实活动的函数，并在$ \ sqrt {s _ {\ rm nn}} = 5.02 $ tev中搜索pp，p-pb和pb-pb碰撞中的类似喷气样修饰
Particle production as a function of underlying-event activity and search for jet-like modifications in pp, p-Pb, and Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV with ALICE
论文作者
论文摘要
使用横向区域中的带电粒子多重性$ n^{\ rm t} _ {\ rm ch} $探索了小碰撞系统之间的相似性，这对基础事件很敏感。在$ \ sqrt {s _ {s _ {\ rm nn}} = 5.02 $ tev tev tev tev tev tev tev tev tev tev tev tev tev tev in PP，P-PB和PB-PB碰撞中的$ n^{\ rm t} _ {\ rm ch} $的函数的测量值的测量值在朝向，远方和横向区域中讨论了$ \ sqrt {s _ {\ rm nn}} = 5.02 $ tev tev tev tev tev tev。这三个区域是根据事件中最大的横向动量（$ p _ {\ rm t}^{\ rm trig} $）定义的。横向区域中的活性是从朝向和客流区域的活性中减去的，以搜索小型碰撞系统中的类似喷气样修饰。研究类似喷气的信号是作为$ n^{\ rm t} _ {\ rm ch} $的函数和$ p _ {\ rm t}^{\ rm trig} $的函数。将结果与两个通用蒙特卡洛事件发生器进行了比较：毕达〜8和Epos〜LHC。
The similarity between small- and large-collision systems is explored using the charged-particle multiplicity in the transverse region, $N^{\rm T}_{\rm ch}$, which is sensitive to the underlying event. Measurements of charged-particle production as a function of $N^{\rm T}_{\rm ch}$ in pp, p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV in the toward, away and transverse regions are discussed. These three regions are defined relative to the track with the largest transverse momentum in the event ($p_{\rm T}^{\rm trig}$). The activity in the transverse region is subtracted from the activity in the toward and the away regions to search for jet-like modifications in small-collision systems. The jet-like signals are studied both as a function of $N^{\rm T}_{\rm ch}$ and $p_{\rm T}^{\rm trig}$. Results are compared with two general purpose Monte Carlo event generators: PYTHIA~8 and EPOS~LHC.
