JEWEL+PYTHIA simulated pp and PbPb collisions at 5020 GeV - Jet substructure variables

Samples of simulated jets generated using JEWEL+PYTHIA for both Unquenched (pp) and Quenched (PbPb) cases, with the former being generated using the vacuum executable, jewel-vac, and the later using the medium executable, jewel-simple. For each case 320 000 events were produced with \(\sqrt{s}=5020\) GeV, \(p_T \in [40, 250]\) GeV, \(|y|&lt;2.5\) . For the Quenched case, the medium settings were set to \(\tau_i = 0.4\) fm/c, \(T_i = 440\) MeV, \(T_c = 170\) MeV, and centrality \(0-10\%\). Three Quenched samples are produced from the same JEWEL output eventfiles. One without thermal recoils One with thermal recoils but no background subtraction One with thermal recoils and background subtraction via the event-level subtraction prescription found in Improved background subtraction and a fresh look at jet sub-structure in JEWEL More details about the simulation of the events and the jet variables please refer to the code repository and Jet substructure observables for jet quenching in Quark Gluon Plasma: a Machine Learning driven analysis, where they were first used.本数据集包含使用JEWEL+PYTHIA生成的模拟喷注（jet）样本，涵盖未淬火（pp，质子-质子碰撞）与淬火（PbPb，铅核-铅核碰撞）两类情形：前者通过真空执行程序jewel-vac生成，后者则采用介质执行程序jewel-simple生成。两类情形均生成320000个事件，质心系能量√s=5020 GeV，喷注横向动量p_T取值范围为[40, 250] GeV，快度|y|<2.5。针对淬火情形，其介质模拟参数设置为：初始时间τ_i=0.4 fm/c，初始温度T_i=440 MeV，临界温度T_c=170 MeV，碰撞中心度为0-10%。本数据集基于同一套JEWEL输出事件文件生成了三份淬火样本，分别为无热反冲的样本、带有热反冲但未进行背景减除的样本，以及带有热反冲且通过事件级减除方案实现背景减除的样本，该减除方案出自论文《Improved background subtraction and a fresh look at jet sub-structure in JEWEL》。若需了解事件模拟与喷注变量的更多细节，请参阅对应代码仓库，以及首篇使用该数据集的论文《Jet substructure observables for jet quenching in 夸克-胶子等离子体（Quark Gluon Plasma）: a Machine Learning driven analysis》。