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测量质子 - 质子碰撞中双喷注产生的多微分截面。 （你提供的原文似乎不完整，“. ”这里应该有具体的能量等参数值）

Measurement of multidifferential cross sections for dijet production in proton-proton collisions at .

出版信息

Eur Phys J C Part Fields. 2025;85(1):72. doi: 10.1140/epjc/s10052-024-13606-8. Epub 2025 Jan 24.

DOI:10.1140/epjc/s10052-024-13606-8
PMID:39873299
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11761505/
Abstract

A measurement of the dijet production cross section is reported based on proton-proton collision data collected in 2016 at by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of up to 36.3 . Jets are reconstructed with the anti- algorithm for distance parameters of and 0.8. Cross sections are measured double-differentially (2D) as a function of the largest absolute rapidity of the two jets with the highest transverse momenta and their invariant mass , and triple-differentially (3D) as a function of the rapidity separation , the total boost , and either or the average of the two jets. The cross sections are unfolded to correct for detector effects and are compared with fixed-order calculations derived at next-to-next-to-leading order in perturbative quantum chromodynamics. The impact of the measurements on the parton distribution functions and the strong coupling constant at the mass of the boson is investigated, yielding a value of .

摘要

本文报道了基于欧洲核子研究中心（CERN）大型强子对撞机（LHC）上的CMS实验在2016年收集的质子-质子碰撞数据测量得到的双喷注产生截面，对应积分亮度高达36.3 。采用反 算法重建喷注，距离参数分别为 和0.8。截面以双微分（2D）形式作为具有最高横向动量 的两个喷注中最大绝对快度 及其不变质量 的函数进行测量，并以三微分（3D）形式作为快度间隔 、总推进度 以及两个喷注的 或平均 的函数进行测量。对截面进行展开以校正探测器效应，并与微扰量子色动力学中次领头阶次的固定阶计算结果进行比较。研究了这些测量对玻色子质量处的部分子分布函数和强耦合常数的影响，得到了 的值。

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