论文标题
$ \ sqrt {s} = 5.02 $ tev的PP碰撞中的软滴和动态美容算法的修饰喷射半径和动量分裂分数的测量
Measurements of the groomed jet radius and momentum splitting fraction with the soft drop and dynamical grooming algorithms in pp collisions at $\sqrt{s}=5.02$ TeV
论文作者
论文摘要
本文介绍了$ \ sqrt {s} = 5.02 $ tev的PP碰撞中的修饰喷射半径和动量分裂分数，并在大型强子对撞机上使用爱丽丝检测器。使用抗$ k _ {\ rm {t}} $ 60 <p _ {\ mathrm {t}}^{\ rm {ch \ rm {ch \ \ \; jet}} <80 $ gev/$ c $。我们使用两种不同的修饰算法报告结果：软滴和首次动态修饰。对于每种修饰算法，都使用各种修饰设置，以探索共线辐射对这些JET子结构可观察物的影响。将这些结果与扰动计算进行了比较，这些计算包括在强耦合常数中所有阶的大对数重新召集。我们发现理论预测与所考虑的所有修饰设置的数据都很好地达成了共识。
This article presents measurements of the groomed jet radius and momentum splitting fraction in pp collisions at $\sqrt{s}=5.02$ TeV with the ALICE detector at the Large Hadron Collider. Inclusive charged-particle jets are reconstructed at midrapidity using the anti-$k_{\rm{T}}$ algorithm for transverse momentum $60< p_{\mathrm{T}}^{\rm{ch\; jet}}<80$ GeV/$c$. We report results using two different grooming algorithms: soft drop and, for the first time, dynamical grooming. For each grooming algorithm, a variety of grooming settings are used in order to explore the impact of collinear radiation on these jet substructure observables. These results are compared to perturbative calculations that include resummation of large logarithms at all orders in the strong coupling constant. We find good agreement of the theoretical predictions with the data for all grooming settings considered.
