A predictive and testable unified theory of fermion masses, mixing and leptogenesis

Journal of High Energy Physics

Regular Article - Theoretical Physics

Luca Marsili¹  Silvia Pascoli²  Jessica Turner³  Ye-Ling Zhou⁴  Stephen F. King⁵  Bowen Fu⁵ 

[1] Dipartimento di Fisica e Astronomia, Università di Bologna, via Irnerio 46, 40126, Bologna, Italy;Dipartimento di Fisica e Astronomia, Università di Bologna, via Irnerio 46, 40126, Bologna, Italy;INFN, Sezione di Bologna, viale Berti Pichat 6/2, 40127, Bologna, Italy;CERN, Theoretical Physics Department, Geneva, Switzerland;Institute for Particle Physics Phenomenology, Department of Physics, Durham University, DH1 3LE, Durham, UK;School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, China;International Centre for Theoretical Physics Asia-Pacific, Beijing/Hangzhou, China;School of Physics and Astronomy, University of Southampton, SO17 1BJ, Southampton, UK;

关键词: Grand Unification;    Neutrino Mixing;    Baryo-and Leptogenesis;    Early Universe Particle Physics;   

DOI  :  10.1007/JHEP11(2022)072

 received in 2022-09-14, accepted in 2022-10-28,  发布年份 2022

来源: Springer

【 摘 要 】

We consider a minimal non-supersymmetric SO(10) Grand Unified Theory (GUT) model that can reproduce the observed fermionic masses and mixing parameters of the Standard Model. We calculate the scales of spontaneous symmetry breaking from the GUT to the Standard Model gauge group using two-loop renormalisation group equations. This procedure determines the proton decay rate and the scale of U(1)B−L breaking, which generates cosmic strings and the right-handed neutrino mass scales. Consequently, the regions of parameter space where thermal leptogenesis is viable are identified and correlated with the fermion masses and mixing, the neutrinoless double beta decay rate, the proton decay rate, and the gravitational wave signal resulting from the network of cosmic strings. We demonstrate that this framework, which can explain the Standard Model fermion masses and mixing and the observed baryon asymmetry, will be highly constrained by the next generation of gravitational wave detectors and neutrino oscillation experiments which will also constrain the proton lifetime.

【 授权许可】

Unknown   
© The Author(s) 2022