arXiv 1907.048022019-07-10hep-ph

从p+p和e+p碰撞到终极部分子分布

Towards Ultimate Parton Distributions from p+p and e+p Collisions

Shaun Bailey

备注：: 5 pages, 11 figures. Proceedings of the XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2019)

摘要：

我们目前的结果，从LHC数据的最终约束力的PDF文件，可以预期从完整的数据集，特别是在高亮度（HL）阶段的详细评估。为了实现这一点，HL-LHC伪数据的实验不确定性的不同的投影生成，并由此产生的PDF 4LHC 15集上的限制量化的Hessian分析方法的装置。我们发现，HL-LHC测量可以减少PDF的不确定性的2至4倍，相比国家的最先进的拟合，导致百分之几的不确定性的重要观测，如希格斯玻色子通过胶子融合的横向动量分布。我们的研究结果说明了显着改善的精度PDF适合实现从强子对撞机的数据。此外，我们将同样的方法应用于拟议的LHeC的最终预期数据样本，并将其与HL-LHC预测进行比较，表明预测的HL-LHC和LHeC约束之间具有令人鼓舞的互补性。

英文摘要：

We present results from a detailed assessment of the ultimate constraining power of LHC data on the PDFs that can be expected from the complete dataset, in particular after the High-Luminosity (HL) phase. To achieve this, HL-LHC pseudo-data for different projections of the experimental uncertainties are generated, and the resulting constraints on the PDF4LHC15 set are quantified by means of the Hessian profiling method. We find that HL-LHC measurements can reduce PDF uncertainties by up to a factor of 2 to 4 in comparison to state-of-the-art fits, leading to few-percent uncertainties for important observables such as the Higgs boson transverse momentum distribution via gluon-fusion. Our results illustrate the significant improvement in the precision of PDF fits achievable from hadron collider data alone. In addition, we apply the same methodology to the final anticipated data sample from the proposed LHeC, and compare these with the HL-LHC projections, demonstrating an encouraging complementarity between the projected HL-LHC and LHeC constraints.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

摘要：

英文摘要：

相关论文