Description
Effective field theory.
Chair: Livia Maskos
The Standard Model Effective Field Theory (SMEFT) provides a powerful and systematic framework to search for physics beyond the Standard Model. In this talk, I will discuss the role of dimension-6 SMEFT operators in the Drell–Yan process and present preliminary results from a fit to current collider data.
In this talk I will present ongoing work towards a more precise and unified description of heavy-flavour decays in Sherpa, combining modern form-factor parameterisations with QED radiative corrections.
On the hadronic side, I am implementing Boyd-Grinstein-Lebed (BGL) form factors for a set of benchmark channels: heavy-to-light pseudoscalar and vector decays ($B \to \pi, K, \rho, K^\ast$),...
We derive the differential distribution of semileptonic decays with respect to the perpendicular momentum component of the final state hadron. This approach is illustrated on the LHCb measurement of the $\bar{B}^0_s → D^+_s μ^- \bar{ν}$ decay distribution and uses data from the LHCb experiment in an independent phenomenological analysis for the first time.
