About
Searches for the superpartner of the top quark are of special interest in the larger context of searches for supersymmetry, as it could play a central role in the solution of the hierarchy problem given its large coupling to the Higgs boson. The CMS Collaboration has looked for hints of top squark production in fully hadronic, semi-leptonic and fully leptonic final states with the whole dataset of proton-proton collisions collected during the Run 2 of the LHC. Advanced, novel strategies for object identification and background reduction, based on machine learning, are used to maximize the sensitivity to new physics for different configurations of the sparticle mass spectrum. Inclusive analyses are complemented by dedicated searches for the most challenging topologies, such as those where the signal mimics the standard model background from top quark pair production. Results from all channels are combined. Moreover, top squark production in R-parity violating and stealth supersymmetry models is searched for with a dedicated analysis. The seminar will present the analysis methods used in these searches and their results.
Cornering the top squark with the CMS detector: https://cern.zoom.us/j/61825141950?pwd=NGptbjY1SVVuN1lpMklXSXVjNm5Ddz09.
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The talk
Credits and licence
- Institution
- CERN
- Department
- LHC Seminar
- Speaker
- Daniel Spitzbart
- Year
- 2021
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed