<p>Joint Theory Seminar: Adam Falkowski (Paris-Saclay)<br />mail: adam.falkowski@th.u-psud.fr<br />Title: Which FT?<br />Host: Terning <br />Room: 432<br />Abstract: I will discuss effective field theories (FTs) beyond the Standard<br />Model (SM) with linearly and non-linearly realized electroweak<br />symmetry. One difference between these two is the UV behavior of 2<br />to n scattering amplitudes. In the non-linear case, the unitarity<br />constraints on 2 to n amplitudes force the FT cut-off scale to be<br />parametrically close to 3TeV, even for tiny<br />deformations from the SM couplings. The physical interpretation of<br />this fact will be provided.</p>
