Exploring minimal composite Higgs hypothesis in the Higgs sector (e.g. TTH and HH production processes) with the new LHC data at CMS experiment

• Grant number: 18/11505-0
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: September 01, 2018
• End date: August 31, 2019
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Ricardo D'Elia Matheus
• Grantee: Leônidas Augusto Fernandes Do Prado
• Supervisor: Aurore Savoy Navarro
• Host Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil
• Institution abroad: Commissariat à l'énergie atomique et aux énergies alternatives (CEA), France
• Associated to the scholarship: 15/26624-6 - Exploring the Higgs sector beyond the standard model with the top Yukawa coupling: a phenomenological and experimental search, BP.DR

Abstract

Minimal Composite Higgs Models (MCHM), with fermions in the fundamental representation of SO(5) and in the 14 of SO(5), are taken as the starting hypothesis to study the possible impact of compositeness in the ttH and HH production processes at LHC, with particular interest in searching for the enhancement of the ttHH production cross-section wrt the SM expectation. The search for this enhancement predicted by MCHMis the goal of this phenomenological and experimental work. After developing the phenomenological scenario in the current phase of his PhD, the candidate will translate this theoretical work into the simulation framework of the CMS experiment. It will then be followed by an analysis of the ttHH production process with the 150 fb1 data collected over the full LHC Run 2 period. The challenge of this proposal is quite ambitious because it aims to develop both the phenomenological and experimental skills in a single PhD project. The BEPE fellowship motivation is to achieve this experimental phase of the PhD work.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BAUTISTA, CARLOS; DE LIMA, LEONARDO; MATHEUS, RICARDO D'ELIA; PONTON, EDUARDO; FERNANDES DO PRADO, LEONIDAS A.; SAVOY-NAVARRO, AURORE. Probing the top-Higgs sector with composite Higgs models at present and future hadron colliders. Journal of High Energy Physics, n. 3, MAR 3 2021. (13/01907-0, 15/26624-6, 18/11505-0, 16/01343-7)