Status and prospects of precision analyses with $e^{+}{e}^{-}\to W^{+}{W}^{-}$

Abstract

$e^{+}{e}^{-}\to W^{+}{W}^{-}$ is an integral part of the global precision analysis program which is becoming more relevant after the discovery of the Higgs boson. We analyze the current situation of precision calculations of inclusive $e^{+}{e}^{-}\to W^{+}{W}^{-}$ observables, and study the prospects of incorporating them into the framework of global precision electroweak analyses in light of per-mil-level cross section measurements at proposed future facilities. We present expansion formulas for the observables, making the dependence on the inputs clear. Also, the calculation of new physics effects is demonstrated in the effective field theory framework for universal theories. We go beyond the triple-gauge-couplings parametrization, and illustrate the complementarity of $e^{+}{e}^{-}\to W^{+}{W}^{-}$ and other precision data at the observables level.

30 pages, 4 tables, 1 figure

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Cited by in corpus (11)

• Compilation of low-energy constraints on 4-fermion operators in the SMEFT
• Model independent constraints on four-lepton operators
• Learning from Higgs Physics at Future Higgs Factories
• Sensitivities of Prospective Future e+e- Colliders to Decoupled New Physics
• Unravelling the anomalous gauge boson couplings in $Z{W}^{\pm }$ production at the LHC and the role of spin-$1$ polarizations
• Probing the anomalous triple gauge boson couplings in $e^{+}{e}^{-}\to W^{+}{W}^{-}$ using $W$ polarizations with polarized beams
• Pinning down Anomalous $WW\gamma$ Couplings at the LHC
• Probing dark particles indirectly at the CEPC
• Role of polarizations and spin-spin correlations of $W^{\prime }s$ in $e^{-}{e}^{+}\to W^{-}{W}^{+}$ at $\sqrt{s}=250$ GeV to probe anomalous $W^{-}{W}^{+}Z/\gamma$ couplings
• Study of anomalous gauge boson self-couplings and the role of spin-$1$ polarizations
• Theory status of four-fermion production at e-e+ colliders