# 53rd Rencontres de Moriond - EW 2018

10-17 March 2018
Europe/Paris timezone

## Measurement of fiducial, differential and production cross sections in the H → γγ decay channel with ATLAS

12 Mar 2018, 20:04
5m
YSF (Young Scientists Forum)

### Speaker

Mr Stephen Menary (University of Manchester)

### Description

The measurements of differential (in the fiducial phase space) and production mode cross sections are presented in the $H\rightarrow\gamma\gamma$ decay channel using $36~\text{fb}^{-1}$ data collected by the ATLAS detector at a centre of mass energy of $\sqrt{s}=13~\text{TeV}$. These characterise $pp\rightarrow H\rightarrow\gamma\gamma$ processes in a variety of ways; production mode cross sections directly test the compatibility of the data with the Standard Model (SM), whereas fiducial measurements make minimal SM assumptions and can thus be re-interpreted in order to constrain new physics models. The sensitivity is approximately double that of the $\sqrt{s}=8~\text{TeV}$ dataset. Finally, 5 differential distributions are used to constrain several Wilson coefficients using the effective field theory approach.

### Primary author

Mr Stephen Menary (University of Manchester)