# IOP 2014 Joint HEPP & APP Group Meeting

7-9 April 2014
Royal Holloway, University of London
Europe/London timezone
Institute of Physics 2014 Joint High Energy Particle Physics and Astro Particle Physics Groups Annual Meeting

## Evidence for Higgs Boson Decays to the $\tau\tau$ Final State with the ATLAS Detector

8 Apr 2014, 16:00
15m
Room C (Windsor Building)

### Room C

#### Windsor Building

contributed talk The Energy Frontier Programme

### Speaker

Carl Jeske (University of Warwick)

### Description

I will present results of a search for the 125 GeV Higgs boson decaying to a pair of tau leptons. The dataset used is 20.3fb$^{-1}$ of proton-proton collision recorded by the ATLAS detector at a centre of mass energy of 8 TeV. The observed (expected) deviation from the background only hypothesis corresponds to a significance of 4.1 (3.2) standard deviations. The measured signal strength is $\mu = 1.4^{+0.5}_{-0.4}$. This constitutes evidence for the existence of Higgs to $\tau\tau$ decays and is consistent with the Standard Model expectation of a Higgs Boson with mass 125 GeV.

### Primary author

Carl Jeske (University of Warwick)

 Slides