https://doi.org/10.1140/epjc/s10052-022-10933-6
Regular Article - Theoretical Physics
Two-loop improved predictions for
and
in Two-Higgs-Doublet models
Max Planck Institut für Physik, Werner-Heisenberg-Institut, Föhringer Ring 6, 80805, Munich, Germany
Received:
24
July
2022
Accepted:
17
October
2022
Published online:
30
October
2022
We present the currently most precise predictions for the W-boson mass and the leptonic effective mixing angle in the aligned Two-Higgs-Doublet Model. The evaluation includes the full one-loop result, all known higher-order corrections of the Standard Model, and the non-standard two-loop contributions that increase with mass splittings between charged and neutral THDM Higgs bosons. They depend on and the soft
-symmetry breaking parameter
of the scalar potential, in addition to the non-standard boson masses. Whenever the one-loop corrections become large, the two-loop contributions yield substantial modifications of the predictions, which is of particular importance for the W mass where large mass shifts are required to reach the recently published final result of the CDF collaboration. Numerical results are shown for the dependence on the various non-standard parameters and in comparison with experimental data.
© The Author(s) 2022
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