Buonocore Luca, Grazzini Massimiliano, Haag Jürg, Rottoli Luca
Physik Institut, Universität Zürich, 8057 Zurich, Switzerland.
Eur Phys J C Part Fields. 2022;82(1):27. doi: 10.1140/epjc/s10052-021-09962-4. Epub 2022 Jan 11.
We consider the associated production of a vector or Higgs boson with a jet in hadronic collisions. When the transverse momentum of the boson-jet system is much smaller than its invariant mass , the QCD perturbative expansion is affected by large logarithmic terms that must be resummed to all orders. We discuss the all-order resummation structure of the logarithmically enhanced contributions up to next-to-leading logarithmic accuracy. Resummation is performed at the differential level with respect to the kinematical variables of the boson-jet system. Soft-parton radiation produces azimuthal correlations that are fully accounted for in our framework. We present explicit analytical results for the resummation coefficients up to next-to-leading order and next-to-leading logarithmic accuracy, that include the exact dependence on the jet radius.
我们考虑在强子碰撞中矢量玻色子或希格斯玻色子与喷注的关联产生。当玻色子 - 喷注系统的横向动量远小于其不变质量时，量子色动力学（QCD）微扰展开会受到大对数项的影响，这些大对数项必须被重整到所有阶次。我们讨论了对数增强贡献的全阶重整结构，直至次领头对数精度。重整是在玻色子 - 喷注系统的运动学变量的微分水平上进行的。软部分子辐射产生的方位角关联在我们的框架中得到了充分考虑。我们给出了直至次领头阶和次领头对数精度的重整系数的显式解析结果，其中包括对喷注半径的精确依赖关系。
