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Resummation of Glauber phases in non-global LHC observables for large Nc

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2024年8月5日

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  • Philipp Böer,
  • Patrick Hager,
  • Matthias Neubert,
  • Michel Stillger,
  • Xiaofeng Xu

摘要

The Glauber series for non-global jet observables at hadron colliders simultaneously includes the super-leading logarithms alongside an arbitrary number of Glauber phases. Building on the formalism of [1], it is shown that the leading terms in this series for large Nc can be resummed in closed form in renormalization-group improved perturbation theory. This remarkable observation suggests that large-Nc methods might also be helpful to study other aspects of non-global logarithms at hadron colliders, and to combine our analytic results with amplitude-level parton showers.