Seminarios y conferencias

Search for new physics in proton-proton collisions recorded by the CMS experiment at the CERN LHC

by Irene Bachiller




The Large Hadron Collider (LHC) at CERN is the world’s largest and most powerful particle accelerator. The Compact Muon Solenoid (CMS) experiment, where the CIEMAT group has a broad contribution, is a general-purpose detector at the LHC and an ideal instrument for searches beyond Standard Model physics. In this seminar I will present the search for new physics processes using proton-proton collision events with final states containing an energetic electron, or muon, and apparent transverse momentum imbalance (pTmiss).  

This lepton+pTmiss final state is a promising and clean experimental channel. The data collected at 13 TeV center-of-mass energy during the Run 2 period (2016+2017+2018), corresponding to a total integrated luminosity of 137 fb−1, have been analyzed. Results will be presented in a model independent way, and also on the search for new gauge bosons (W’) predicted by the Sequential Standard Model. Additionally they will be reinterpreted in the context of extra-dimensions or SUSY scenarios. In a more generic way, and following EFT approaches, deviations from the SM predictions are quantified in terms of oblique electroweak parameters and these data allow the measurement of the W parameter. All these results are complementary used to set constraints on composite Higgs scenarios.

Zoom Coordinates:, pass 092020, pass 092020

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