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(1) Presentation(s)

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Mar. 05/04/2022 13:30 Salle des Séminaires, Bâtiment 21, Etage 4

Séminaire
BAGNASCHI Emanuele (CERN, Geneva)
CNRS candidate section 2
The mass of the W boson: challenges for its precision determination at the LHC, and its role as an indirect probe of BSM physics

(Théorie des Interactions Fondamentales)


Sommaire:

The possibility of probing the existence of beyond the Standard Model physics via precision measurements is of renewed importance given the current lack of signs of new particles being produced at the LHC.

One of the most important quantities in that regard is the mass of the W boson. Advanced theoretical predictions and sophisticated experimental techniques are required for measuring M_W at LHC with the precision required to provide meaningful BSM bounds.

At the same time, in order to properly compare the experimental determination with the theoretical predictions, it is important to estimate properly the uncertainties affecting the experimental value as extracted with the current setup.

In this talk I will at first present an overview of the most important theoretical uncertainties affecting the LHC determination, focusing on bottom-related effects and PDF uncertainties, while in a second part of the talk I will show an explicit example of how M_W can be used to probe indirectly supersymmetric scenarios in light of the current experimental constraints and the muon g-2 anomaly.


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fichier PDF
Pour plus d'informations, merci de contacter Frigerio M.