"Table 2" of "Measurement of the production cross section for W-bosons in association with jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector"

CERN-LHC. Measurement of the inclusive W+jets cross section in proton-proton collisions at centre-of-mass enrgy 7 TeV. The data, collected from March to August 2010 have an integrated luminosity of 1.3 pb-1, and have been corrected for all known detector effects and are quoted within limited and well defined ranges of jet and lepton kinematics. Jets were reconstructed using the anti-kT algoithm with radius parameter R = 0.4. The lepton energy is defined as the energy of the lepton after radiation plus the energy of all radiated photons within DeltaR=0.1 around the lepton. Additionally the distance from the lepton to the jet axis was required to have DeltaR=>0.5 and muons were isolated with DeltaR>0.2. Cross sections are presented, in both the electron and muon decay modes of the W, as a function of jet multiplicity and transverse momentum of both the leading and next-to-leading jets in the event. Where appropriate in the tables the second DSYS error is the luminosity uncertainty. Numerical values supplied by M Dunford.

CERN-LHC。本数据集针对质心系能量7 TeV的质子-质子碰撞，测量了单举W+喷注产生截面。实验数据采集于2010年3月至8月，积分亮度为1.3 pb⁻¹，已针对所有已知探测器效应完成校正，且结果限定在明确定义的喷注与轻子运动学范围内。喷注采用反kT（anti-kT）算法重建，半径参数R=0.4。轻子能量定义为轻子自身辐射后的能量，加上轻子周围ΔR=0.1范围内所有辐射光子的总能量。实验同时要求轻子与喷注轴之间的距离ΔR≥0.5，且缪子（muon）需满足ΔR>0.2的隔离条件。本数据集分别给出W玻色子电子衰变道与缪子衰变道的截面结果，截面以喷注多重数、事件中领头喷注及次领头喷注的横向动量为变量。在对应表格中，第二类系统误差（DSYS误差）为亮度不确定性。数值由M·邓福德（M Dunford）提供。