| Article | |
| Title | Measurement of same sign WW VBS processes at CMS with one hadronic tau in the final state |
| Author(s) | Piccinelli, Andrea (Notre Dame U.) |
| Collaboration | CMS Collaboration |
| Publication | 2024 |
| Number of pages | 6 |
| In: | PoS EPS-HEP2023 (2024) 322 |
| In: | 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023, pp.322 |
| DOI | 10.22323/1.449.0322 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LHC ; CMS |
| Abstract | This contribution presents an investigation into the electroweak production of same-sign W boson pairs (ssWW) with a hadronically decaying tau lepton ($\tau_h$) in the final state. This study is based on proton-proton collisions at a center-of-mass energy of 13 TeV, as recorded by the CMS experiment at the CERN LHC, with an integrated luminosity of 138 fb$^{-1}$. This work delves deeper into the electroweak spontaneous symmetry breaking (EWSB) sector of the standard model (SM) of particle physics, focusing on Vector Boson Scattering (VBS) processes, which play a pivotal role in understanding the non-abelian structure of the SM. The article introduces a Machine Learning approach to enhance the identification of the final state in ssWW VBS processes. The results show an observed electroweak signal strength of $1.44_{−0.56}^{+0.63}$, corresponding to a signal significance of 2.74 standard deviations. The study concludes with the intention to explore the sensitivity to indirect New Physics effects using the Standard Model Effective Field Theory (SMEFT) framework. |
| Copyright/License | CC-BY-NC-ND-4.0 |
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Record created 2024-05-22, last modified 2024-05-22