Natural and dynamical neutrino mass mechanism at the LHC

Author(s)

Gehrlein, Julia ^{[1, 2]} ; Goncalves, Dorival ^[3] ; Machado, Pedro A. N. ^[4] ; Perez-Gonzalez, Yuber F. ^{[5, 6, 7]}

Affiliation

^[1] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid - Spain

^[2] UAM, CSIC, Inst Fis Teor, Calle Nicolas Cabrera 13-15, Madrid 28049 - Spain

^[3] Univ Pittsburgh, Dept Phys & Astron, 3941 OHara St, Pittsburgh, PA 15260 - USA

^[4] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 - USA

^[5] Univ Estadual Paulista, ICTP South Amer Inst Fundamental Res, Rua Dr Bento T Ferraz 271, BR-01140070 Sao Paulo - Brazil

^[6] Univ Estadual Paulista, Inst Fis Teor, Rua Dr Bento T Ferraz 271, BR-01140070 Sao Paulo - Brazil

^[7] Univ Sao Paulo, Inst Fis, Dept Fis Matemat, Rua Matao 1371, BR-05508090 Sao Paulo - Brazil

• Document type: Journal article
• Source: Physical Review D; v. 98, n. 3 AUG 30 2018.
• Web of Science Citations: 1

Abstract

We generalize the scalar triplet neutrino mass model, the type II seesaw. Our model displays compelling theoretical and experimental features. First, lepton number violation is dynamically generated, without introducing a naturalness problem, nor relying on arbitrarily small parameters. Second, we identify a smoking gun signature at the LHC that both probes the triplet structure of our seesaw mechanism and allows to disentangle it from the usual type II scenario. Additionally, we discuss other interesting phenomenological aspects of the model such as the presence of a massless Goldstone boson and deviations of standard model Higgs couplings. (AU)

• FAPESP's process: 17/19765-8 - See-saw Mechanism in Composite Higgs Models
• Grantee: Yuber Ferney Pérez González
• Support type: Scholarships in Brazil - Post-Doctorate
• FAPESP's process: 13/03132-5 - Leptogenesis and beyond standard model physics
• Grantee: Yuber Ferney Pérez González
• Support type: Scholarships in Brazil - Doctorate