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arXiv 0908.3914hep-ex
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在$\sqrt{s}=1.96$ TeV的PDMATHAAD碰撞中测量PDMATHAAC质量区Drell-Yan $e^+e^-$对的$dσ/dy$

Measurement of $dσ/dy$ of Drell-Yan $e^+e^-$ pairs in the $Z$ Mass Region from $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV

The CDF Collaboration, T. Aaltonen

备注：
Submitted to Phys. Letter B
发表信息：
Phys.Lett.B692:232-239,2010
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摘要：

本文报道了在积分光度为2.1fb的$\sqrt{s}=1.96$ TeV的$p\bar{p}$碰撞中产生的$Z$玻色子质量区（$66<M_{ee}<116$/c $^2$）的$q\bar{q}\to γ^{*}/Z\to e^{+}e^{-}$事件的总截面和快度分布$dσ/dy$的CDF测量结果。测量的$257\pm16$ pb和$dσ/dy$分布的截面与次领先阶（NLO）和次领先阶（NNLO）QCD理论预测的CTEQ和MRST/MSTW部分子分布函数（PDF）进行了比较。实验总截面和$dσ/dy$测量与最新NNLO PDF的理论计算之间有很好的一致性。

英文摘要：

We report on a CDF measurement of the total cross section and rapidity distribution, $dσ/dy$, for $q\bar{q}\to γ^{*}/Z\to e^{+}e^{-}$ events in the $Z$ boson mass region ($66<M_{ee}<116$GeV/c$^2$) produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$TeV with 2.1fb$^{-1}$ of integrated luminosity. The measured cross section of $257\pm16$pb and $dσ/dy$ distribution are compared with Next-to-Leading-Order(NLO) and Next-to-Next-to-Leading-Order(NNLO) QCD theory predictions with CTEQ and MRST/MSTW parton distribution functions (PDFs). There is good agreement between the experimental total cross section and $dσ/dy$ measurements with theoretical calculations with the most recent NNLO PDFs.

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