Weak radiative corrections to dijet production at hadron colliders
Weak radiative corrections to dijet production at hadron colliders
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DOI：
10.1007/jhep11(2012)095
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发表时间：
2012-10
影响因子：
5.4
通讯作者：
S. Dittmaier;A. Huss;C. Speckner
中科院分区：
文献类型：
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作者：
S. Dittmaier;A. Huss;C. Speckner
本文计算了LHC和Tevatron上双喷流产生的最重要的电弱修正，包括的树能级效应和的弱环修正。虽然对于积分截面可以忽略不计，但是对于横向喷流动量k T，这些修正在TeV范围内可以达到10 - 20%。我们的详细讨论的数值结果包括分布在dijet不变质量和横向动量的领先和subleading射流。我们发现在14 TeV LHC和Tevatron中，对于k T <$3TeV和k T <$800 GeV的领先喷流，弱回路修正分别约为− 12%和− 10%。的电弱树级的贡献是相同的通用的大小，通常是积极的大型强子对撞机和负的Tevatron在高能量尺度。一般情况下，修正的dijet不变的质量分布是较小的至少一个因素的两个相比，相应的达到在K T分布，因为不像K T光谱的不变的质量分布是不占主导地位的Sudakov制度在高能量尺度。
We present the calculation of the most important electroweak corrections to (dijet production at the LHC and the Tevatron, comprising tree-level effects ofand weak loop corrections of. Although negligible for integrated cross sections, these corrections can reach 10− 20% in the TeV range for transverse jet momenta k T. Our detailed discussion of numerical results comprises distributions in the dijet invariant mass and in the transverse momenta of the leading and subleading jets. We find that the weak loop corrections amount to about− 12% and− 10% for leading jets with k T∼ 3TeV at the 14 TeV LHC and k T∼ 800 GeV at the Tevatron, respectively. The electroweak tree-level contributions are of the same generic size and typically positive at the LHC and negative at the Tevatron at high energy scales. Generally the corrections to the dijet invariant mass distributions are smaller by at least a factor of two as compared to the corresponding reach in the k T distributions, because unlike the k T spectra the invariant-mass distributions are not dominated by the Sudakov regime at high energy scales.