| Full text | |
| Author(s): |
Bautista, Carlos
[1, 2]
;
de Lima, Leonardo
[3]
;
Matheus, Ricardo D'Elia
[1]
;
Ponton, Eduardo
[1, 2]
;
Fernandes do Prado, Leonidas A.
[1, 4, 5]
;
Savoy-Navarro, Aurore
[4, 5]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Paulista, UNESP, Inst Fis Teor, 271 Dr Bento Teobaldo Ferraz St, Sao Paulo - Brazil
[2] ICTP South Amer Inst Fundamental Res, 271 Dr Bento Teobaldo Ferraz St, Sao Paulo - Brazil
[3] Univ Fed Tecnol Parana UTFPR, 19 Cristo Rei St, Toledo - Brazil
[4] Univ Paris Saclay, CEA, IRFU, Bat 141 DPhP, F-91191 Gif Sur Yvette - France
[5] CNRS, IN2P3, Bat 141 DPhP, F-91191 Gif Sur Yvette - France
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Journal of High Energy Physics; n. 3 MAR 3 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
We study the production of tt<overbar></mml:mover>h and tt<mml:mo stretchy={''}true{''}><overbar></mml:mover>hh at hadron colliders, in the minimal Composite Higgs Models, based on the coset SO(5)/SO(4). We explore the fermionic representations 5 and 14. A detailed phenomenological analysis is performed, covering the energy range of the LHC and its High Luminosity upgrade, as well as that of a future 100 TeV hadron collider. Both resonant and non-resonant production are considered, stressing the interplay and complementary interest of these channels with each other and double Higgs production. We provide sets of representative points with detailed experimental outcomes in terms of modification of the cross sections as well as resonance masses and branching ratios. For non-resonant production, we gauge the relative importance of Yukawa, Higgs trilinear, and contact t<mml:mover accent={''}true{''}>t<mml:mo stretchy={''}true{''}><overbar></mml:mover>hh vertices to these processes, and consider the prospect for distinguishing the fermion representations from each other and from the Standard Model. In the production of top partners, we find that the three-body decay channel W(+)W(-)t becomes significant in certain regions of parameter space having a degenerate spectrum, and is further enhanced by increasing the top partner's mass. This motivates both higher energy machines as well as the need to go beyond the current analysis performed for the searches for these resonances. (AU) | |
| FAPESP's process: | 13/01907-0 - São Paulo Research and Analysis Center |
| Grantee: | Sergio Ferraz Novaes |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 15/26624-6 - Exploring the Higgs sector beyond the standard model with the top Yukawa coupling: a phenomenological and experimental search |
| Grantee: | Leônidas Augusto Fernandes Do Prado |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 18/11505-0 - Exploring minimal composite Higgs hypothesis in the Higgs sector (e.g. TTH and HH production processes) with the new LHC data at CMS experiment |
| Grantee: | Leônidas Augusto Fernandes Do Prado |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |
| FAPESP's process: | 16/01343-7 - ICTP South American Institute for Fundamental Research: a regional center for theoretical physics |
| Grantee: | Nathan Jacob Berkovits |
| Support Opportunities: | Special Projects |