All Outputs (9)

Higgs phenomenology as a probe of sterile neutrinos (2019)
Journal Article
Butterworth, J. M., Chala, M., Englert, C., Spannowsky, M., & Titov, A. (2019). Higgs phenomenology as a probe of sterile neutrinos. Physical Review D, 100(11), Article 115019. https://doi.org/10.1103/physrevd.100.115019

Physics beyond the Standard Model can manifest itself as both new light states and heavy degrees of freedom. In this paper, we assume that the former comprise only a sterile neutrino, N. Therefore, the most agnostic description of the new physics is... Read More about Higgs phenomenology as a probe of sterile neutrinos.

Generalised CP symmetry in modular-invariant models of flavour (2019)
Journal Article
Novichkov, P., Penedo, J., Petcov, S., & Titov, A. (2019). Generalised CP symmetry in modular-invariant models of flavour. Journal of High Energy Physics, 2019(7), Article 65. https://doi.org/10.1007/jhep07%282019%29165

The formalism of combined finite modular and generalised CP (gCP) sym-metries for theories of flavour is developed. The corresponding consistency conditions for the two symmetry transformations acting on the modulus τ and on the matter fields are der... Read More about Generalised CP symmetry in modular-invariant models of flavour.

Probes of the Standard Model effective field theory extended with a right-handed neutrino (2019)
Journal Article
Alcaide, J., Banerjee, S., Chala, M., & Titov, A. (2019). Probes of the Standard Model effective field theory extended with a right-handed neutrino. Journal of High Energy Physics, 2019(8), Article 31. https://doi.org/10.1007/jhep08%282019%29031

If neutrinos are Dirac particles and, as suggested by the so far null LHC results, any new physics lies at energies well above the electroweak scale, the Standard Model effective field theory has to be extended with operators involving the right-hand... Read More about Probes of the Standard Model effective field theory extended with a right-handed neutrino.

Neutrino portals to dark matter (2019)
Journal Article
Blennow, M., Fernandez-Martinez, E., Olivares-Del Campo, A., Pascoli, S., Rosauro-Alcaraz, S., & Titov, A. (2019). Neutrino portals to dark matter. The European Physical Journal C, 79(7), Article 555. https://doi.org/10.1140/epjc/s10052-019-7060-5

We explore the possibility that dark matter interactions with Standard Model particles are dominated by interactions with neutrinos. We examine whether it is possible to construct such a scenario in a gauge invariant manner. We first study the coupli... Read More about Neutrino portals to dark matter.

Modular A5 symmetry for flavour model building (2019)
Journal Article
Novichkov, P., Penedo, J., Petcov, S., & Titov, A. (2019). Modular A5 symmetry for flavour model building. Journal of High Energy Physics, 2019(4), Article 174. https://doi.org/10.1007/jhep04%282019%29174

In the framework of the modular symmetry approach to lepton flavour, we consider a class of theories where matter superfields transform in representations of the finite modular group Γ5 ≃ A5. We explicitly construct a basis for the 11 modular forms o... Read More about Modular A5 symmetry for flavour model building.

Modular S4 models of lepton masses and mixing (2019)
Journal Article
Novichkov, P., Penedo, J., Petcov, S., & Titov, A. (2019). Modular S4 models of lepton masses and mixing. Journal of High Energy Physics, 2019(4), Article 5. https://doi.org/10.1007/jhep04%282019%29005

We investigate models of charged lepton and neutrino masses and lepton mixing based on broken modular symmetry. The matter fields in these models are assumed to transform in irreducible representations of the finite modular group Γ4 ≃ S4. We analyse... Read More about Modular S4 models of lepton masses and mixing.

The A4, S4 and A5 flavor symmetries in light of data on neutrino mixing (2018)
Journal Article
Petcov, S., & Titov, A. (2018). The A4, S4 and A5 flavor symmetries in light of data on neutrino mixing. International Journal of Modern Physics A, 33(31), Article 1844024. https://doi.org/10.1142/s0217751x18440244

We consider the A4, S4 and A5 discrete lepton flavor symmetries broken down to nontrivial residual symmetries in the charged lepton and neutrino sectors in such a way that at least one of them is a Z2. Such symmetry breaking patterns lead to predicti... Read More about The A4, S4 and A5 flavor symmetries in light of data on neutrino mixing.

Assessing the viability of A4, S4, and A5 flavor symmetries for description of neutrino mixing (2018)
Journal Article
Petcov, S., & Titov, A. (2018). Assessing the viability of A4, S4, and A5 flavor symmetries for description of neutrino mixing. Physical Review D, 97(11), Article 115045. https://doi.org/10.1103/physrevd.97.115045

We consider the A4, S4, and A5 discrete lepton flavor symmetries in the case of 3-neutrino mixing, broken down to nontrivial residual symmetries in the charged lepton and neutrino sectors in such a way that at least one of them is a Z2. Such symmetry... Read More about Assessing the viability of A4, S4, and A5 flavor symmetries for description of neutrino mixing.

Addressing neutrino mixing models with DUNE and T2HK (2018)
Journal Article
Agarwalla, S. K., Chatterjee, S. S., Petcov, S., & Titov, A. (2018). Addressing neutrino mixing models with DUNE and T2HK. The European Physical Journal C, 78(4), Article 286. https://doi.org/10.1140/epjc/s10052-018-5772-6

We consider schemes of neutrino mixing arising within the discrete symmetry approach to the well-known flavour problem. We concentrate on 3ν mixing schemes in which the cosine of the Dirac CP violation phase δCP satisfies a sum rule by which it is ex... Read More about Addressing neutrino mixing models with DUNE and T2HK.