High Energy Physics Seminar next week (Riembau Saperas)

[HECAP - Margherita Di Giovannantonio]

*_HIGH ENERGY PHYSICS SEMINAR_ - *https://indico.ictp.it/event/10633/*__*



*Tuesday, 20 February* 2024, at *16:00*  - *LUIGI STASI SEMINAR ROOM/
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Marc Riembau Saperas (CERN)

*“Positivity for Real World Phenomena”*

_Abstract_

In recent years it has become apparent that unitarity and causality of 
QFT dramatically constrain the allowed space of consistent IR dynamics. 
In this talk I present how the electroweak parameters are constrained 
due to the particular structure of universal theories,  a broad class of 
well-motivated microscopic dynamics of the electroweak sector that go 
beyond the Standard Model description. In particular, the W and Y 
parameters are constrained to be positive by unitarity and are 
necessarily the leading effects at low energies. I discuss how this 
observation affects the interpretation of current data and assess the 
impact of future constraints.


This is a hybrid event. *To join via Zoom*:

Zoom link:https://zoom.us/j/94267507215

Meeting ID: 942 6750 7215

Password: 178365




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