论文标题
质子 - 质子碰撞的总和弹性横截面的结果$ \ sqrt {s} $ =在RHIC的Star detecter获得的200 GEV
Results on Total and Elastic Cross Sections in Proton-Proton Collisions at $\sqrt{s}$ = 200 GeV Obtained with the STAR Detector at RHIC
论文作者
论文摘要
我们报告了相对论重离子对撞机（RHIC）在$ \ sqrt {s} = 200 $ GEV处的质子 - 普罗顿碰撞器（RHIC）的差异，总和弹性横截面的第一个结果。通过恒星实验的罗马锅检测器子系统获得的数据。用于此分析的数据涵盖了四摩托姆传输平方〜（$ t $）范围$ 0.045 \ le | t | \ le 0.135 $（gev/c）$^2 $。罗马锅系统被放置在恒星探测器的下游。在获取的数据期间，罗马锅被移至〜8 $σ_{y} $，即远离光束中心的垂直距离。它们是在标准数据采用过程中操作的。结果包括指数斜率参数（b），弹性横截面（$σ_{el} $）的值以及通过弹性差分横截面（$dσ/dt $）的外推到$ | t | t | t | | t | = 0 $（gev/c）$^{2} $。审查了检测器设置和分析程序。将所有结果与世界数据进行比较。
We report the first results on differential, total and elastic cross sections in proton-proton collisions at the Relativistic Heavy Ion Collider (RHIC) at $\sqrt{s}=200$ GeV. The data lwere obtained with the Roman Pot Detector subsystem of the STAR experiment. The data used for this analysis cover the four-momentum transfer squared ~($t$) range $ 0.045 \le |t| \le 0.135$ (GeV/c)$^2$. The Roman Pot system was placed downstream of the STAR detector. During the data taking the Roman Pots were moved to ~8$σ_{y}$, the vertical distance of from the beam center. They were operated during standard data taking procedure. The results include values of the exponential slope parameter (B), elastic cross section ($σ_{el}$) and the total cross section ($σ_{tot}$) obtained by extrapolation of the elastic differential cross section ($dσ/dt$) to the optical point at $|t| = 0$ (GeV/c)$^{2}$. The detector setup and analysis procedure are reviewed. All results are compared with the world data.
