Manuele Filaci

PhD student
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Manuele Filaci



Research activity

I focused my studies on models for neutrino masses. Firstly, I studied 3 Type III Seesaw Models: a general case (in which an arbitrary number of triplets is added to the SM), the 3 triplets case (both for Normal Hierarchy (NH) and Inverted Hierarchy (IH) of light neutrino masses) and the 2 triplets case (again, both for NH and IH). As a result, I updated the constraints on the parameters of the models using the recently improved bounds on many observables (in particular, from nu-fit, PDG and Planck). After that, I studied neutrino mass models based on Non-Commutative Geometry (NCG). In particular, I studied an extension of the Connes’ model, i.e. twisted NCG applied to the SM. I evaluated the full fluctuation of the Dirac operator and the full fermionic action of the theory. I studied the physical meaning of the transition from Euclidean to Lorentzian signature in the inner product. I studied ways to extend the definition of the spectral action to the twisted case.

Research at DIFI

Main publications

Global bounds on the Type-III Seesaw

C. Biggio, E. Fernandez-Martinez, M. Filaci, J. Hernandez-Garcia, J. Lopez-Pavon, Journal of High Energy Physics 2020, 22 (2020), doi:10.1007/JHEP05(2020)022

Actions for twisted spectral triple and the transition from the Euclidean to the Lorentzian

A. Devastato, M. Filaci, P. Martinetti, D. Singh, International Journal of Geometric Methods in Modern Physics 2020, doi:10.1142/S0219887820300019.