First observation of top quark production in the forward region.
First observation of top quark production in the forward region.
复制标题
首次观测到前沿区域顶夸克的产生。
DOI：
10.1103/physrevlett.115.112001
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发表时间：
2015
影响因子：
8.6
通讯作者：
Aaij R
中科院分区：
文献类型：
--
作者：
Aaij R
首次观察到质子-质子碰撞前区顶夸克的产生。最终态的重建使用μ子的横向动量，大于25 GeV的赝快度范围内。喷注动量和μ介子动量之和的横向分量必须满足。这些结果是基于LHCb在质心能量为7和8 TeV时收集的积分光度为1.0的数据。在基准区的包含顶夸克产生截面为：σ（top）[7 TeV]=239±53（stat）±33（syst）±24（理论）fb，σ（top）[8 TeV]=289±43（stat）±40（syst）±29（理论）fb.这些结果与观测到的微分产额和电荷不对称性沿着，与次领先阶标准模型的预言一致.
Top quark production in the forward region in proton-proton collisions is observed for the first time. Thefinal state withis reconstructed using muons with a transverse momentum,, larger than 25 GeV in the pseudorapidity range. Thejets are required to haveand, while the transverse component of the sum of the muon and-jet momenta must satisfy. The results are based on data corresponding to integrated luminosities of 1.0 andcollected at center-of-mass energies of 7 and 8 TeV by LHCb. The inclusive top quark production cross sections in the fiducial region are σ(top)[7 TeV]=239±53(stat)±33(syst)±24(theory) fb,σ(top)[8 TeV]=289±43(stat)±40(syst)±29(theory) fb.These results, along with the observed differential yields and charge asymmetries, are in agreement with next-to-leading order standard model predictions.
研究W玻色子的产生与美丽和魅力的关系
影响因子：
5
作者：
Aaij R
通讯作者：
Aaij R