| Full text | |
| Author(s): |
Barducci, Daniele
[1, 2]
;
Bertuzzo, Enrico
[3]
;
Caputo, Andrea
[4, 5]
;
Hernandez, Pilar
[6]
;
Mele, Barbara
[2]
Total Authors: 5
|
| Affiliation: | [1] Univ Roma Sapienza, Piazzale Aldo Moro 5, I-00185 Rome - Italy
[2] INFN, Sect Roma 1, Piazzale Aldo Moro 5, I-00185 Rome - Italy
[3] Univ Sao Paulo, Inst Fis, CP 66-318, BR-05315970 Sao Paulo - Brazil
[4] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv - Israel
[5] Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-7610001 Rehovot - Israel
[6] Univ Valencia, CSIC, Inst Fis Corpuscular, Parc Cient Paterna, Paterna - Spain
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Journal of High Energy Physics; n. 3 MAR 11 2021. |
| Web of Science Citations: | 2 |
| Abstract | |
We consider an extension of the Standard Model with two right-handed singlet fermions with mass at the electroweak scale that induce neutrino masses, plus a generic new physics sector at a higher scale Lambda. We focus on the effective operators of lowest dimension d = 5, which induce new production and decay modes for the singlet fermions. We assess the sensitivity of future Higgs Factories, such as FCC-ee, CLIC-380, ILC and CEPC, to the coefficients of these operators for various center of mass energies. We show that future lepton colliders can test the cut-off of the theory up to Lambda similar or equal to 500-1000 TeV, surpassing the reach of future indirect measurements of the Higgs and Z boson widths. We also comment on the possibility of determining the underlying model flavor structure should a New Physics signal be observed, and on the impact of higher dimensional d = 6 operators on the experimental signatures. (AU) | |
| FAPESP's process: | 15/25884-4 - Physics beyond the standard model: theoretical and phenomenological challenges |
| Grantee: | Enrico Bertuzzo |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 19/15149-6 - Dark matter physics: new phenomenological and theoretical directions |
| Grantee: | Enrico Bertuzzo |
| Support Opportunities: | Scholarships abroad - Research |