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arXiv 1302.4393hep-ex
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在LHC上使用ATLAS探测器在sqrt(s)= 7 TeV的pp碰撞中改进的光度测定

Improved luminosity determination in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC

ATLAS Collaboration

摘要:

给出了2010年和2011年在sqrt(s)= 7 TeV的pp碰撞中,LHC上ATLAS探测器的光度标定结果。使用几个光度敏感的探测器进行光度尺度的评价,并比较了长期的稳定性和精度的校准适用于PP碰撞在sqrt(S)= 7 TeV。对于2010年交付给ATLAS的47 pb-1数据,获得了Delta L/L = +/- 3.5%的光度不确定度,对于2011年交付的5.5 fb-1数据,获得了Delta L/L = +/- 1.8%的不确定度。

英文摘要:

The luminosity calibration for the ATLAS detector at the LHC during pp collisions at sqrt(s) = 7 TeV in 2010 and 2011 is presented. Evaluation of the luminosity scale is performed using several luminosity-sensitive detectors, and comparisons are made of the long-term stability and accuracy of this calibration applied to the pp collisions at sqrt(s) = 7 TeV. A luminosity uncertainty of Delta L/L = +/- 3.5% is obtained for the 47 pb-1 of data delivered to ATLAS in 2010, and an uncertainty of Delta L/L = +/- 1.8% is obtained for the 5.5 fb-1 delivered in 2011.

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