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- W1978787603 abstract "Using the recently introduced Stripper approach to double-real radiation, we evaluate the total cross sections for the main partonic channels of the next-to-next-to-leading order contributions to top quark pair production in hadronic collisions: gg→tt¯gg, gg→tt¯qq¯, qq¯→tt¯gg, qq¯→tt¯q′q¯′, q′≠q. The results are given as Laurent expansions in ϵ, the parameter of dimensional regularization, at a number of m/ECM values spreading the entire variation range, with m the mass of the top quark and ECM the center-of-mass energy. We describe the details of our implementation and demonstrate its main properties: pointwise convergence and efficiency. We also prove the cancellation of leading divergences after inclusion of the double-virtual and real–virtual contributions. On a more technical note, we extended the double-soft current formulae to the case of massive partons." @default.
- W1978787603 created "2016-06-24" @default.
- W1978787603 creator A5067993512 @default.
- W1978787603 date "2011-08-01" @default.
- W1978787603 modified "2023-09-26" @default.
- W1978787603 title "Double-real radiation in hadronic top quark pair production as a proof of a certain concept" @default.
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- W1978787603 doi "https://doi.org/10.1016/j.nuclphysb.2011.03.020" @default.
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