论文标题
$ \ sqrt {s} = 13 $ tev带有地图集检测器
Jet energy scale and resolution measured in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
论文作者
论文摘要
使用36-81 fb $^{ - 1} $的质子 - 质子碰撞数据据报道喷气机的喷气能量表和分辨率及其相关的不确定性，其质量中心能量为$ \ sqrt {s} = 13 $ tev，由LHC在LHC上收集的TEV。使用两种不同的输入类型重建喷气机：由量热计细胞中的能量沉积物形成的topo群集，以及带电粒子轨道的算法组合与那些topo群集的算法组合，称为Atlas粒子粒子 - 流质重建方法。带有半径参数$ r = 0.4 $的抗$ k_t $ jet算法是两种喷气式类型的主要喷气式定义。最初，使用一系列基于仿真的校正来校准喷气机。接下来，使用几个$ \ textit {intu} $技术来纠正数据和仿真之间的差异并测量喷气机的分辨率。中央喷气机（$ |η| <1.2 $）的喷气能量表中的系统不确定性从1％的高范围的高$ p _ {\ text {t text {t}} $ jets（$ 250 <$ 250 <p _ {\ p _ {\ text {t}}}}以非常高的$ p _ {\ text {t}} $（$> 2.5 $ tev）。测量相对的喷气能量分辨率，范围为20 GEV（$ 24 \ pm 1.5 $）％，到300 GEV的GEV（$ 6 \ pm 0.5 $）％。
Jet energy scale and resolution measurements with their associated uncertainties are reported for jets using 36-81 fb$^{-1}$ of proton-proton collision data with a centre-of-mass energy of $\sqrt{s}=13$ TeV collected by the ATLAS detector at the LHC. Jets are reconstructed using two different input types: topo-clusters formed from energy deposits in calorimeter cells, as well as an algorithmic combination of charged-particle tracks with those topo-clusters, referred to as the ATLAS particle-flow reconstruction method. The anti-$k_t$ jet algorithm with radius parameter $R=0.4$ is the primary jet definition used for both jet types. Jets are initially calibrated using a sequence of simulation-based corrections. Next, several $\textit{in situ}$ techniques are employed to correct for differences between data and simulation and to measure the resolution of jets. The systematic uncertainties in the jet energy scale for central jets ($|η|<1.2$) vary from 1% for a wide range of high-$p_{\text{T}}$ jets ($250<p_{\text{T}}<2000$ GeV), to 5% at very low $p_{\text{T}}$ (20 GeV) and 3.5% at very high $p_{\text{T}}$ ($>2.5$ TeV). The relative jet energy resolution is measured and ranges from ($24 \pm 1.5$)% at 20 GeV to ($6 \pm 0.5$)% at 300 GeV.
