Abstract
We check the capability of the DUNE neutrino experiment to detect new sources of leptonic CP violation beside the single phase expected in the Standard Model. We illustrate our strategy based on the measurement of CP asymmetries in the case that new physics will show up as nonstandard neutrino interactions and sterile neutrino states and show that the most promising one, once the experimental errors are taken into account in both scenarios, is the one related to the νμ→νe transition.
Highlights
Neutrino flavor oscillations are one of the most important particle physics discoveries of the last several decades [1]
The search for physics beyond the Standard Model has become an attractive research field in the neutrino sector thanks to the huge experimental efforts in the measurement of the standard oscillation parameters. They are known with good precision and the relevant question is to establish whether new physics is hidden within the experimental uncertainties
Contrary to many similar studies in the literature, we avoided focusing on the sensitivity of a given experiment to a particular phase, as many assumptions that are usually made in the fit procedure obscure the true sensitivity to CP violation
Summary
Neutrino flavor oscillations are one of the most important particle physics discoveries of the last several decades [1]. The NP phases inevitably affect CP violation in neutrino oscillations, whose presence can be highlighted from CP-odd observables; among them, asymmetries of the type Aαβ ∼ P(να → νβ) − P(να → νβ) can be directly measured with future neutrino experiments capable of distinguishing neutrino from antineutrino events. Such quantities are generally dependent on the CP phases and become a smoking gun for new CP violation as soon as their values deviate from the SM predictions, including matter effects [40]. A similar situation arises for Aμμ, where only terms proportional to VCCrα and VCCα2 appear
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
