Search for a Vector Like Quark T' decaying into quark top and Higgs boson in a dileptonic same sign final state with the CMS experiment at LHC
Résumé
In 2012: completion of the Standard Model (SM) with the discovery of Higgs boson. -Mass of 125 GeV in natural units (n.u.) (~130 times the proton mass) problematic because the perturbative corrections make this mass divergent. Hierarchy problem! How do we fix this issue? Adding a new particle in the model! -Vector-Like Quark (VLQ) T': particle (both quark and vector) whose interaction with the Higgs boson would cancel the corrections and solve the hierarchy problem.
-Higgs boson mass at 125 GeV. T' mass around 1 TeV (13 TeV in the center of mass of the LHC for 2016-2018). We assume that the T' mass is 700 GeV. T' is highly unstable: how can we observe it? T' production Benjamin Blancon JRJC BSM 10.25.22 Single T' production:
-quark q-antiquark q' interaction. W/Z boson. -gluon g-quark b interaction.
Quark q". -W/Z boson-quark q" interaction. VLQ T'.
At primary vertex (PV), three modes for T' decay:
-T' W boson + top quark (50%). -T' Z boson + top quark (25%).
Origine | Fichiers produits par l'(les) auteur(s) |
---|