Camagni, V. (2024) Particle Transformer for τ lepton pair invariant mass reconstruction for the HH→bb¯τ+τ− CMS analysis. Il nuovo cimento C, 47 (5). pp. 1-6. ISSN 1826-9885
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Abstract
One of the most interesting channels to probe theories beyond the Standard Model at the Large Hadron Collider is the production of a new massive particle, that decays into pairs of Higgs bosons which, in turn, decay into a pair of b-quarks and a pair of τ leptons. A fundamental discriminant variable to separate HH signal from the backgrounds is the invariant mass of the di-τ system. In order to reconstruct it special techniques are needed, as the presence of neutrinos from τ decay does not allow for a complete reconstruction of the event. To this end, a transformer-based architecture (Particle Transformer) has been implemented, showing better results with respect to the most common used algorithm in CMS, which is, in addition, extremely CPU consuming.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 22 Oct 2024 10:06 |
| Last Modified: | 22 Oct 2024 10:06 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23251 |
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