Speaker
Description
Within the framework of the Standard Model Effective Field Theory (SMEFT), next-to-leading order (NLO) calculations reveal sensitivities to a broad class of higher-dimensional operators, including those affecting top quark interactions, Higgs couplings, and potential sources of CP violation, that may remain hidden at leading order.
In this talk, I will highlight recent advances in NLO SMEFT analyses relevant to future $e^+e^-$ programs, illustrating how precision studies can uncover indirect signs of new physics. I will emphasize how both direct and indirect searches across different energy regimes offer complementary sensitivities within the broader landscape of BSM scenarios, and how the combined efforts of future accelerator programs can provide a more complete picture. Particular attention will be given to operators that contribute at loop level, and to how future measurements may offer insight into potential modifications of Higgs decay channels.
