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 2201.01033hep-phhep-ex
收藏

重离子碰撞中产生的重子测量温度的普适能量依赖性

Universal Energy Dependence of Measured Temperatures for Baryons Produced in Heavy-ion Collisions

Lilin Zhu, Hua Zheng, Ke Da, Huanjing Gong, Zhizhen Ye, Guiqi Liu, Rudolph C. Hwa

AI总结:

本文发现重离子碰撞中重子测量温度随碰撞能量呈普适标度律,并通过重组模型关联夸克性质,预测并验证了$\phi$介子产生。

摘要:

从重离子碰撞中重子产生的数据可以看出,存在一组可测量的函数,每种重子类型对应一个函数,这些函数在从RHIC BES低端到CERN LHC高端的所有碰撞能量下,对横向动量呈指数依赖,直至探测到的最大值。由此隐含的温度满足一个碰撞能量的标度律,对所有重子类型具有普适指数,这是一项新发现。这暗示了一个自相似的热源。此外,还展示了标度行为如何依赖于中心度。这些数据特征通过重组模型与轻夸克和奇异夸克的简单性质相关联。对$\phi$介子产生做出了预测,并得到了现有数据的验证。

英文摘要:

From the data on baryon production in heavy-ion collisions it is shown that a set of measurable functions exist, one for each baryon type, that depend exponentially on transverse momenta up to the maximum values detected for all collision energies ranging from the low end of RHIC BES to the high end of CERN LHC. The implied temperatures satisfy a scaling law in collision energy with a universal exponent for all baryon types which is the novel discovery. A self-similar thermal source is implied. Furthermore, it is shown how the scaling behavior depends on centralities. Those features in the data are related to simple properties of light and strange quarks by use of the recombination model. Prediction of $ϕ$ meson production is made and then verified by existing data.

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。

↑