论文标题
重量培养的黑辐射制作,重夸克群体在$ {\ overline {\ rm ms}} $,MSR和壳计划中重新归一化
Heavy-flavor hadro-production with heavy-quark masses renormalized in the ${\overline{\rm MS}}$, MSR and on-shell schemes
论文作者
论文摘要
我们为大型强子对撞机上的重夸克生产提供了预测,利用了$ {\ Overline {\ rm MS}} $,而MSR重新构函数方案用于重Quark质量作为广泛使用的壳重新分配方案的替代方案。我们计算单个和双重差分分布,包括在近代领先顺序处的QCD校正,并研究这些质量重量化方案中的重新归一化和分解量表依赖性以及扰动收敛性。该实现基于公开提供的程序,$ {\ texttt {McFm}} $和$ {\ texttt {xfitter}} $,扩大了其能力。我们的结果用于使用总和差异$ t \ bar {t} $生产跨段来提取顶级质量,并研究对Parton分布功能的约束,尤其是在低$ x $值的Gluon分布上,从可用的LHC数据上,对重质量大量宏观生产的可用LHC数据。
We present predictions for heavy-quark production at the Large Hadron Collider making use of the ${\overline{\rm MS}}$ and MSR renormalization schemes for the heavy-quark mass as alternatives to the widely used on-shell renormalization scheme. We compute single and double differential distributions including QCD corrections at next-to-leading order and investigate the renormalization and factorization scale dependence as well as the perturbative convergence in these mass renormalization schemes. The implementation is based on publicly available programs, ${\texttt{MCFM}}$ and ${\texttt{xFitter}}$, extending their capabilities. Our results are applied to extract the top-quark mass using measurements of the total and differential $t\bar{t}$ production cross-sections and to investigate constraints on parton distribution functions, especially on the gluon distribution at low $x$ values, from available LHC data on heavy-flavor hadro-production.