On the determination of leptonic CP violation and neutrino mass ordering in presence of non-standard interactions: present status

• Published in: The journal of high energy physics Vol. 2019; no. 6; pp. 1 - 24
• Main Authors: Esteban, Ivan, Gonzalez-Garcia, M. C., Maltoni, Michele
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-06-2019; Springer Nature B.V; SpringerOpen
• Subjects: Classical and Quantum Gravitation; CP violation; Elementary Particles; Flavor (particle physics); High energy physics; Leptons; Matter & antimatter; Neutral currents; Neutrino Physics; Neutrinos; Parameterization; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Quarks; Regular Article - Theoretical Physics; Relativity Theory; Solar and Atmospheric Neutrinos; String Theory; Neutrino Physics; Solar and Atmospheric Neutrinos
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP06(2019)055

A
bstract
We perform a global analysis of neutrino data in the framework of three massive neutrinos with non-standard neutrino interactions which affect their evolution in the matter background. We focus on the effect of NSI in the present observables sensitive to leptonic CP violation and to the mass ordering. We consider complex neutral current neutrino interactions with quarks whose lepton-flavor structure is independent of the quark type. We quantify the status of the “hints” for CP violation, the mass-ordering and non-maximality of
θ
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in these scenarios. We also present a parametrization-invariant formalism for leptonic CP violation in presence of a generalized matter potential induced by NSI.