Non-Unitarity of the lepton mixing matrix at the European spallation source
| Autor: | Sabya Sachi Chatterjee, O. G. Miranda, M. Tórtola, J. W. F. Valle |
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| Přispěvatelé: | Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
PMNS matrix
Physics::Instrumentation and Detectors new physics High Energy Physics::Phenomenology phase: CP FOS: Physical sciences lepton: mixing neutrino: mixing angle High Energy Physics - Experiment High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) ESSnuSB [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] CP: violation [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] High Energy Physics::Experiment neutrino: oscillation unitarity: violation |
| Zdroj: | Physical Review D, 2022, Vol.106(7) [Peer Reviewed Journal] Physical Review Phys.Rev.D Phys.Rev.D, 2022, 106 (7), pp.075016. ⟨10.1103/PhysRevD.106.075016⟩ |
| DOI: | 10.1103/PhysRevD.106.075016⟩ |
| Popis: | If neutrinos get mass through the exchange of lepton mediators, as in seesaw schemes, the neutrino appearance probabilities in oscillation experiments are modified due to effective nonunitarity of the lepton mixing matrix. This also leads to new CP phases and an ambiguity in underpinning the ''conventional'' phase of the three-neutrino paradigm. We study the CP sensitivities of various setups based at the European spallation source neutrino super-beam (ESSnuSB) experiment in the presence of nonunitarity. We also examine its potential in constraining the associated new physics parameters. Moreover, we show how the combination of DUNE and ESSnuSB can help further improve the sensitivities on the nonunitarity parameters. 18 pages, 8 pdf figures, and 5 Tables. New figures and new discussions have been added. Version matches the published version of PRD |
| Databáze: | OpenAIRE |
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