Weak radiative corrections to dijet production at hadron colliders

作者：Dittmaier Stefan^*; Huss Alexander; Speckner Christian

来源：The Journal of High Energy Physics, 2012, 2012(11): 095.

DOI：10.1007/JHEP11(2012)095

• Jets
• NLO Computations

We present the calculation of the most important electroweak corrections to dijet production at the LHC and the Tevatron, comprising tree-level effects of O(alpha(s)alpha, alpha(2)) and weak loop corrections of O(alpha(2)(s)alpha). 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) similar to 3 TeV at the 14 TeV LHC and k(T) similar to 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.

• 出版日期2012-11