Tau reconstruction at CMS with a focus on high $ p_{T} $ taus
Soham Bhattacharya on behalf of The CMS Collaboration
SciPost Phys. Proc. 1, 050 (2019) · published 22 February 2019
- doi: 10.21468/SciPostPhysProc.1.050
- Submissions/Reports
Proceedings event
The 15th International Workshop on Tau Lepton Physics
Abstract
We present the algorithm and performance of tau reconstruction at the CMS experiment, while highlighting a dedicated reconstruction algorithm that uses calorimeter hits instead of tracks to reconstruct taus with high transverse momentum. Describing the standard Hadrons-Plus-Strips (HPS) algorithm and its dependence on track reconstruction and shower modelling, we present the calorimetric tau (calo-tau) reconstruction that uses minimal track information for high $ p_{T} $ taus. The pros and cons of these algorithms are discussed along with their performance and potential uses. It is found that the calo-tau algorithm outperforms the HPS algorithm in the high efficiency region. This study is work in progress, and is an attempt to tune the reconstruction for high $ p_{T} $ taus. The calo-tau algorithm is not yet an official tau reconstruction algorithm for CMS.