从低到高横向动量的Drell-Yan轻子对产生
Drell-Yan lepton pair production from low to high transverse momentum
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中文总结 AI 辅助
提出一种粒子级Drell-Yan轻子对产生计算技术,覆盖低到高横向动量,达到N3LO及近似N4LL'精度,利用格点QCD的Collins-Soper核,并通过最大熵原理生成正事件权重。
中文摘要 AI 辅助
我们提出一种在粒子级计算Drell-Yan轻子对产生的技术,该技术在小到中等横向动量下达到N$^3$LO和近似N$^4$LL$'$精度,在$Z+4$、$5$和$6$喷注下达到树级精度,并在高横向动量下达到近似NLO电弱精度。一个关键的非微扰输入,Collins-Soper核,从连续极限格点QCD结果中获得。高精度理论结果通过基于最大熵原理的信息论方法被重铸为严格正的事件权重。
英文摘要
We present a technique for computing Drell-Yan lepton pair production at particle-level that achieves N$^3$LO and approximate N$^4$LL$'$ accuracy at small to moderate transverse momentum, tree-level precision for $Z+4$, $5$, and $6$ jets, and approximate NLO EW precision at high transverse momentum. A crucial non-perturbative input, the Collins-Soper kernel, is obtained from continuum-limit lattice QCD results. High-precision theory results are recast into strictly positive event weights using an information-theoretic approach based on the maximum entropy principle.
发表机构
- Perimeter Institute for Theoretical Physics
- Department of Physics, University of Toronto(多伦多大学物理系)
- Vector Institute
- IT Department, CERN(CERN信息技术部)
- Theory Division, Fermilab(费米实验室理论部)
- Centre for Advanced Research Computing, University College London(伦敦大学学院高级计算研究中心)
- Department of Physics, University of Alberta(阿尔伯塔大学物理系)
- Institute for Particle Physics Phenomenology, Durham University(达勒姆大学粒子物理现象学研究所)
- Center for Theoretical Physics – a Leinweber Institute, Massachusetts Institute of Technology(麻省理工学院莱因韦伯理论物理中心)
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