arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2409.18593nucl-exhep-ex
收藏

在LHC最高能量下用ALICE计时粒子产生并追踪奇异数平衡与径向流效应

Clocking the particle production and tracking of strangeness balance and radial flow effects at top LHC energy with ALICE

Victor Gonzalez

AI总结:

利用ALICE在13.6 TeV质子-质子碰撞中测量已鉴别粒子的平衡函数,研究夸克产生时间演化、奇异数平衡及径向流效应,并与模型及不同碰撞系统结果对比。

摘要:

平衡函数已被广泛用于阐明重离子碰撞中夸克产生的时间演化。早期模型预言夸克产生分为两个阶段,一个阶段产生轻夸克,另一个阶段产生较重的奇异夸克,两个阶段之间由一段等熵膨胀时期隔开。这引出了计时粒子产生和追踪径向流效应的概念,径向流效应驱动着系统的膨胀。在本报告中,报告了ALICE在LHC Run 3期间记录的、质心能量为$\sqrt{s} = 13.6\\;\text{TeV}$的质子-质子碰撞中不同多重数类别下已鉴别粒子的平衡函数结果。这些结果与不同模型以及先前发表的不同能量下质子-质子和铅-铅碰撞的结果进行了比较。这些结果通过测量电荷平衡函数和奇异数平衡函数的宽度与积分如何随不同碰撞能量演化,使得追踪电荷平衡和奇异数平衡成为可能。

英文摘要:

Balance functions have been used extensively to elucidate the time evolution of quark production in heavy-ion collisions. Early models predicted two stages of quark production, one for light quarks and one for the heavier strange quark, separated by a period of isentropic expansion. This led to the notion of clocking particle production and tracking radial flow effects, which drive the expansion of the system. In this talk, balance functions of identified particles in different multiplicity classes of pp collisions at $\sqrt{s} = 13.6\;\text{TeV}$ recorded by ALICE during the LHC Run 3 are reported. The results are compared with different models as well as with previously published results on pp and Pb--Pb collisions at different energies. The results enable tracking the balancing of electric charge and strangeness by measuring how the widths and integrals of the charge and strangeness balance functions evolve across different collision energies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑