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Nuclear and Particle Physics

# Search for Higgs boson pair production in the $bb\tau\tau$ final state with the ATLAS detector and investigation of $\pi^0$ reconstruction with alternative $\tau$ jet seeds in hadronic $\tau$ decays.

## by Christina Dimitriadi (Uppsala University)

Europe/Stockholm
668 4093 2777 (Zoom)

### 668 4093 2777

#### Zoom

https://uu-se.zoom.us/j/66840932777
Description

This will be a virtual seminar, and will be hosted in Zoom

Several HH searches are already being performed in ATLAS with different final states, but no evidence of SM-like HH production is expected until High-Luminosity LHC. The associated production of a single Higgs boson via ZH is a background in HH searches. When considering ZH, the cross-section is larger than for the corresponding SM-like HH channel. A slight modification of the HH search to detect ZH instead of HH with a focus on the $bb\tau\tau$ channel, as a first step towards HH detection, is ongoing and will be also presented.