Effectively going beyond the Standard Model with the ATLAS experiment

vendredi 5 avr. 2024, 14:00 → 16:00 Europe/Paris

Auditorium Marcel Vivargent (LAPP)

Francesco Costanza (LAPP), Laura Zambelli (LAPP)

Rahul BALASUBRAMANIAN (Nikhef) <rahul.balasubramanian@cern.ch>

 

The Higgs boson discovery in 2012 during Run-I of the Large Hadron Collider (LHC) 

kick-started a rich exploration in fundamental physics. More than a decade later, 

with five times more data, the Run-II of the LHC has enabled to study the central 

constituent of the Standard Model in great detail.

 

The large dataset allows us to take a generic approach to uncover signatures beyond 

the Standard Model. The Standard Model Effective Field Theory (SMEFT) allows us to 

look for signs of new interactions that are too heavy to be directly produced at the LHC. 

I will introduce the SMEFT framework and present the latest Higgs boson measurements from 

the ATLAS experiment and its constraints in the SMEFT parameter space. 

 

SMEFT provides a consistent framework to look for deviations across different physics sectors.

I will also discuss a global SMEFT interpretation that makes use of ATLAS measurements from 

the Higgs and Electroweak sector. These results demonstrate that a precision era at the 

high-energy frontier of particle physics is genuinely underway.

slides_RahulBalasubramanian.pdf