AI 中文总结
本文重新审视用著名场论定义解读顶夸克质量测量的问题，通过重夸克有效理论模拟顶味介子，探索顶夸克对产生的末态可观测量，将标准顶夸克对事件中的顶质量与模拟样本的极点质量相关联，结果与约200 - 300 MeV不确定性预期相符。
AI 中文摘要
用著名场论定义解读顶夸克质量测量一直是长期讨论的话题。本文重新审视此问题，通过重夸克有效理论模拟虚构的顶味介子，其质量可与任何顶质量定义相关，如极点质量。探索了在正负电子对撞和强子对撞中顶夸克对产生的末态可观测量，并将标准顶夸克对事件中的顶质量与用Pythia 8.3模拟的顶介子样本中提取的极点质量相关联。结果与约200 - 300 MeV不确定性的预期相符，即与 QCD标度相当。
英文摘要
The interpretation of the top quark mass measurements in terms of well-known field theory definitions has been the topic of a long-standing discussion. In this paper we reconsider this issue and simulate fictitious top-flavoured mesons, whose mass can be related to any top mass definition, such as the pole mass, by means of Heavy Quark Effective Theory. We explore final-state observables for top-pair production in $e^+e^-$ and hadron collisions, and relate the top mass in standard $t\bar t$ events to the pole mass extracted from top-meson samples simulated with Pythia 8.3. Our results are in agreement with the expectation of an uncertainty about $200$-$300$ MeV, hence of the order of $Λ_{\rm QCD}$.
Comments28 pages, 16 figures
