HH resonant production searches in the 4b final state with the CMS experiment at 13 TeV.

Giannini L. per la Collaborazione CMS
  Lunedì 11/09   14:30 - 18:30   Aula A208   I - Fisica nucleare e subnucleare
The latest CMS searches results for resonant production of HH pairs in the 4b final state are presented in this talk. Several New Physics scenarios predict the resonant production of HH pairs, and the 4b final state is one of the most sensitive final states due to the large branching ratio. The searches cover a large range of resonance masses, starting from 260 GeV up to 3 TeV, and are designed to be as much model-independent as possible. The analysis is split into two main kinematic regimes each using different reconstruction techniques and suitable b-tagging algorithms to maximize the sensitivity. In the "resolved" regime four b-jets from the higgses decays are targeted. For higher mass resonances, $i.e.$ in the "boosted" regime, two fatjets are used in the reconstruction. In this case the higgs to bb system is identified using jet substructure techniques and a dedicated b-tagging algorithm.