Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 85: Beyond the Standard Model (Theory) 2 and QFT and Lattice Gauge Theory 1

T 85.3: Vortrag

Donnerstag, 24. März 2022, 16:45–17:00, T-H16

Benchmarking Di-Higgs Production in Various Extended Higgs Sector Models — •Duarte Azevedo^5,6, Hamza Abouabid¹, Abdesslam Arhrir¹, Jaouad El Falaki³, Pedro M. Ferreira^2,4, Margarete Mühlleitner⁵, and Rui Santos^2,4 — ¹AbdelMalek Essaadi University, Faculty of Sciences and Techniques B.P 416, Tangier, Morocco — ²ISEL - Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa 1959-007 Lisboa, Portugal — ³EPTHE, Physics Department, Faculty of Science, Ibn Zohr University, Faculty of Sciences Agadir, Morocco — ⁴Centro de Física Teórica e Computacional, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Edifício C8 1749-016 Lisboa, Portugal — ⁵Institute for Theoretical Physics, Karlsruhe Institute of Technology, 76128 Karlsruhe, Germany — ⁶Institute for Astroparticle Physics, Karlsruhe Institute of Technology, 76344 Karlsruhe, Germany

We study di-Higgs production in various extended Higgs sector models such as the real and complex 2HDM, the 2HDM with a real singlet and the next-to-Minimal Sypersymmetric Standard Model. We study the process $pp\to h_ih_j$ with $h_i=h_j$ the 125 GeV scalar and the case where $h_i$ and/or $h_j$ are new scalars predicted by the models. When performing the parameter scan, we consider all relevant constraints. The di-Higgs production cross section in these models can exceed the Standard Model rate by more than one order of magnitude. Furthermore we presenting our results for extended Higgs sector considered and list benchmark scenarios which exhibit important di-Higgs production rates at the LHC.