论文标题
LHCB 13 TEV $ W $和$ Z $ pseudo-data的影响对Parton发行功能
Impact of LHCb 13 TeV $W$ and $Z$ pseudo-data on the Parton Distribution Functions
论文作者
论文摘要
我们研究了LHCB 13 TEV单$ W^{\ pm} $和$ z $ boson pseudo-data的潜力，以限制质子的Parton分布功能（PDF）。例如，我们演示了LHCB 13 TEV数据的敏感性，并以5 fb $^{ - 1} $和300 fb $^{ - 1} $进行集成的发光度收集，以减少PDF不确定性频段的PDF pdf pdfs的PDF不确定性频段，并使用错误的PDF更新PDF PDF pdf更新pdf。比较了各种实验性观察物的敏感性。通常，可以在300 fb $^{ - 1} $数据样本中观察到PDF不确定性的大量降低，尤其是在小$ x $区域中。与各种可观察到的单一可观察的测量值相比，几乎在整个$ x $范围内的$ z $ boson $ p_t $ $ z $ boson $ p_t $和速度的双差横截面测量都可以大大减少$ u $ $ $ u $ $ $ u $的不确定性频段。
We study the potential of the LHCb 13 TeV single $W^{\pm}$ and $Z$ boson pseudo-data for constraining the parton distribution functions (PDFs) of the proton. As an example, we demonstrate the sensitivity of the LHCb 13 TeV data, collected with integrated luminosities of 5 fb$^{-1}$ and 300 fb$^{-1}$, to reducing the PDF uncertainty bands of the CT14HERA2 PDFs, using the error PDF updating package {\sc ePump}. The sensitivities of various experimental observables are compared. Generally, sizable reductions in PDF uncertainties can be observed in the 300 fb$^{-1}$ data sample, particularly in the small-$x$ region. The double-differential cross section measurement of $Z$ boson $p_T$ and rapidity can greatly reduce the uncertainty bands of $u$ and $d$ quarks in almost the whole $x$ range, as compared to various single observable measurements.
