论文标题
高能质子 - 普罗顿碰撞中冻结参数的粒子物种和能量依赖性
Particle species and energy dependencies of freeze-out parameters in high-energy proton-proton collisions
论文作者
论文摘要
我们使用具有TSALLIS统计数据的Blast Wave模型来分析大型强子对撞机的质子 - 蛋白质碰撞中的爱丽丝协作测量的实验数据，并提取了相关参数（动力学冻结温度，横向流速和动力学冷冻量的发射源）从粒子的横向动量光谱中提取。我们发现动力学冷冻温度和动力学冷冻体积量取决于质量。前者增加而后者随粒子质量而减小，这是质量和体积差异动力学冻结场景的证据。此外，我们通过间接方法提取了平均横向动量和初始温度，并观察到它们随着颗粒的质量而增加。所有上述讨论的参数都随着能量而增加。 Triton（$ t $），Hyper-Triton（$ {^3 _ {\barλ} h} $）和Helion（$ {^3 He} $），并且由于Isospin对称性，观察到它们的反物质在同一时间冻结。
We used blast wave model with Tsallis statistics to analyze the experimental data measured by ALICE Collaboration in proton-proton collisions at Large Hadron Collider and extracted the related parameters (kinetic freeze-out temperature, transverse flow velocity and kinetic freeze-out volume of emission source) from transverse momentum spectra of the particles. We found that the kinetic freeze-out temperature and kinetic freeze-out volume are mass dependent. The former increase while the latter decrease with the particle mass which is the evidence of a mass as well as volume differential kinetic freeze-out scenario. Furthermore we extracted the mean transverse momentum and initial temperature by an indirect method and observed that they increase with mass of the particles. All the above discussed parameters are observed to increase with energy. Triton ($t$), hyper-triton (${^3_{\barΛ} H}$) and helion (${^3 He}$) and their anti-matter are observed to freeze-out at the same time due to isospin symmetry.
