标题： 面对跟踪器场暗能量的数据 显示英文标题

标题： Confronting Tracker Field Quintessence with Data

摘要： 我们将追踪场宇宙学与观测数据进行对比。本文考虑的势能包括$V(\phi)\propto\phi^{-\alpha}$，$\exp(M_{p}/\phi)$，$\exp(M_{p}/\phi)-1$，$\exp(\beta M_{p}/\phi)$和$\exp(\gamma M_{p}/\phi)-1$；而数据来自最新的Ia型超新星、CMB和BAO观测。得到了严格的参数约束。 与宇宙学常数相比，通过信息准则发现，具有势能$\exp(M_{p}/\phi)$、$\exp(M_{p}/\phi)-1$和$\exp(\gamma M_{p}/\phi)-1$的模型未得到当前数据的支持。 显示英文摘要

摘要： We confront tracker field quintessence with observational data. The potentials considered in this paper include $V(\phi)\propto\phi^{-\alpha}$, $\exp(M_{p}/\phi)$, $\exp(M_{p}/\phi)-1$, $\exp(\beta M_{p}/\phi)$ and $\exp(\gamma M_{p}/\phi)-1$; while the data come from the latest SN Ia, CMB and BAO observations. Stringent parameter constraints are obtained. In comparison with the cosmological constant via information criteria, it is found that models with potentials $\exp(M_{p}/\phi)$, $\exp(M_{p}/\phi)-1$ and $\exp(\gamma M_{p}/\phi)-1$ are not supported by the current data.