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 2004.06056hep-phnucl-th
收藏

基础事件中具有相对横向多重性活动的奇异和多奇异强子产生的演化

Evolution of strange and multi-strange hadron production with relative transverse multiplicity activity in underlying event

Prabhakar Palni, Arvind Khuntia, Paolo Bartalini

摘要:

利用相对基本事件(UE)横向多重性活度分类器($R_{\rm {T}}$)研究了质子-质子碰撞中奇异强子和多奇异强子的产生。我们的研究与$R_{\rm {T}}$将允许解开这些粒子,这是源于软,硬QCD过程。我们使用PYTHIA 8蒙特卡罗(MC)与不同的实现颜色重联和绳强子化模型,以证明质子-质子碰撞数据在$\sqrt{s}$ = 13 TeV。在低横活度区和高横活度区,讨论了奇异强子和多奇异强子的相对产生。在这方面的贡献,相对奇怪的强子产生的增加$R_{\rm {T}}$。与介子相比,这种增强对于奇异重子是显著的。另外,粒子比随$R_{\rm {T}}$的变化证实了新色重联(newCR)中的重子增强,而Rope模型只证实了奇异夸克含量下的重子增强.这些结果的实验证实将提供更多的洞察到软物理在横向区域,这将是有用的,以调查各种调的基础上强子化和色重联计划。

英文摘要:

In this work, the relative Underlying Event (UE) transverse multiplicity activity classifier ($R_{\rm {T}}$) is used to study the strange and multi-strange hadron production in proton-proton collisions. Our study with $R_{\rm {T}}$ would allow to disentangle these particles, which are originating from the soft and hard QCD processes. We have used the PYTHIA 8 Monte-Carlo (MC) with a different implementation of color reconnection and rope hadronization models to demonstrate the proton-proton collisions data at $\sqrt{s}$ = 13 TeV. The relative production of strange and multi-strange hadrons are discussed extensively in low and high transverse activity regions. In this contribution, the relative strange hadron production is enhanced with increasing $R_{\rm {T}}$. This enhancement is significant for the strange baryons as compared to mesons. In addition, the particle ratios as a function of $R_{\rm {T}}$ confirm the baryon enhancement in new Color Reconnection (newCR), whereas the Rope model confirms the baryon enhancement only with strange quark content. Experimental confirmation of such results will provide more insight into the soft physics in the transverse region, which will be useful to investigate various tunes based on hadronization and color reconnection schemes.

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。

↑