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Run3 status and first preliminary results.

Tosi M., De Sanctis U.
  Martedì 13/09   09:00 - 13:30   Aula B - Maria Goeppert-Mayer   I - Fisica nucleare e subnucleare   Presentazione
The new LHC Run3 phase started in 2022 after a three years of Long Shutdown, reaching the highest centre-of-mass energy of proton-proton collision and with the plan of maximizing the delivered luminosity to the experiments by keeping the instantaneous luminosity at $2\times$ 10^$34 Hz\, cm^{-2}$ for several hours. Both the ATLAS and CMS experiments upgraded their detectors, electronics, trigger system and software for the event reconstruction in order to cope with such an unprecedented scenario and keep (or even improve) the physics reach. The status of the ATLAS and CMS detectors and the performance of the physics objects reconstruction in Run3 will be described. In addition, the first preliminary results will be presented.