An embedding technique to determine ττ backgrounds in proton-proton collision data
An embedding technique is presented to estimate standard model ττ backgrounds from data with minimal simulation input. In the data, the muons are removed from reconstructed µµ events and replaced with simulated tau leptons with the same kinematic properties. In this way, a set of hybrid events is...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Institute of Physics Publishing
2019
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/76191/ http://irep.iium.edu.my/76191/ http://irep.iium.edu.my/76191/ http://irep.iium.edu.my/76191/1/76191_An%20embedding%20technique_article.pdf http://irep.iium.edu.my/76191/2/76191_An%20embedding%20technique_scopus.pdf http://irep.iium.edu.my/76191/3/76191_An%20embedding%20technique_wos.pdf |
| Summary: | An embedding technique is presented to estimate standard model ττ backgrounds from
data with minimal simulation input. In the data, the muons are removed from reconstructed µµ
events and replaced with simulated tau leptons with the same kinematic properties. In this way,
a set of hybrid events is obtained that does not rely on simulation except for the decay of the tau
leptons. The challenges in describing the underlying event or the production of associated jets in
the simulation are avoided. The technique described in this paper was developed for CMS. Its
validation and the inherent uncertainties are also discussed. The demonstration of the performance
of the technique is based on a sample of proton-proton collisions collected by CMS in 2017 at
√
s = 13 TeV corresponding to an integrated luminosity of 41.5 fb−1
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