arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1806.01459nucl-thhep-ph
收藏

多重数切割对7次TeV质子-质子碰撞粒子比的影响

The Effect of Multiplicity Cut on Particle Ratios at 7 TeV Proton-Proton Collisions

Ehab Abbas

摘要:

研究了7 TeV质子-质子碰撞末态强子成分与带电粒子多重数密度的关系。热模型进行调整,以匹配的实验条件,以了解实验削减的影响的快速性和多样性。这项研究表明,测量的强子组成下,同时削减的快速性和多重性不符合火球强子组成。排除质子π介子比,调整后的模型可以解释测量的粒子比。因此,所观察到的奇异性增强作为带电粒子多重数密度的函数可能是实验切割的效果。

英文摘要:

The final state hadronic composition of proton-proton collisions at 7 TeV as a function of charged particle multiplicity density is studied. The thermal model is adjusted to match the experimental conditions in order to understand the effect of the experimental cuts on rapidity and multiplicity. This study indicates that the measured hadronic composition under a simultaneous cut on rapidity and multiplicity does not coincide with the fireball hadronic composition. Excluding proton to pion ratio, the adjusted model can explain the measured particle ratios. Therefore, the observed strangeness enhancement as a function of charged particle multiplicity density could be an effect of the experimental cuts.

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。

↑