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Tau reconstruction at CMS with a focus on high $ p_{T} $ taus
by Soham Bhattacharya on behalf of The CMS Collaboration
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Soham Bhattacharya |
| Submission information | |
|---|---|
| Preprint Link: | scipost_201811_00035v1 (pdf) |
| Date accepted: | 2019-01-17 |
| Date submitted: | 2018-11-22 01:00 |
| Submitted by: | Bhattacharya, Soham |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | The 15th International Workshop on Tau Lepton Physics (TAU2018) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approaches: | Experimental, Computational |
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.
Published as SciPost Phys. Proc. 1, 050 (2019)
Reports on this Submission
Report #1 by Anonymous (Referee 1) on 2018-12-12 (Invited Report)
- Cite as: Anonymous, Report on arXiv:scipost_201811_00035v1, delivered 2018-12-12, doi: 10.21468/SciPost.Report.739
Report
This is a very well written paper describing an original new algorithm developed by the CMS
collaboration to improve the efficiency of tau reconstruction and identification at high
transverse momentum. A comparison with the default algorithm is also shown, and the
strength of the new method is very impressive. I highly recommend the publication and
congratulate the author for this excellent contribution.