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Insights to “Planck Scale” at the Large Hadron Collider, prospects.

The Standard Model of particle physics has been tested at the LHC with an outstanding accuracy. Its last particle, the Higgs boson, was experimentally observed 10 years ago by ATLAS and CMS experiments at and has been studied with an increased accuracy since then. Yet, all the particles of the Stand...

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Detalles Bibliográficos
Autor principal: ATLAS Collaboration
Lenguaje:eng
Publicado: 2023
Materias:
Acceso en línea:http://cds.cern.ch/record/2861536
Descripción
Sumario:The Standard Model of particle physics has been tested at the LHC with an outstanding accuracy. Its last particle, the Higgs boson, was experimentally observed 10 years ago by ATLAS and CMS experiments at and has been studied with an increased accuracy since then. Yet, all the particles of the Standard Model make only 5% of matter-energy budget of the observable Universe. The Standard Model does not give an explanation why even this 5% exists. Moreover, the Higgs boson seems to have “set” the vacuum of our Universe in an energetically metastable state. The low value of now precisely measured Higgs boson mass, also remains a mystery from a theory point of view. The LHC data analyzed so far corresponds to ~7% of what the LHC experiment will register during the full machine life-time. The second year of the Run 3 of the LHC has just started and will bring important amount of data. Prospects and the relevance of LHC the physics of the Early Universe are discussed. Disclaimer: This talk covers mostly CMS and ATLAS results, for LHCb results see Monica Pepe-Altarelli’s talk on Wednesday. The abstract is preliminary, and intentionally general.