Nonunitarity of the lepton mixing matrix at the European Spallation Source

被引：5
|
作者：
Chatterjee, Sabya Sachi [1 ,2 ]
Miranda, O. G. [3 ]
Tortola, M. [4 ,5 ]
Valle, J. W. F. [5 ]
机构：
[1] Univ Paris Saclay, Inst Phys Theor, CNRS, CEA, F-91191 Gif Sur Yvette, France
[2] Univ Durham, Dept Phys, Inst Particle Phys Phenomenol, Durham DH1 3LE, England
[3] IPN, Ctr Invest & Estudios Avanzados, Dept Fis, Apartado Postal 14-740, Mexico City 07000, DF, Mexico
[4] Univ Valencia, Dept Fis Teor, Burjassot 46100, Spain
[5] Univ Valencia, AHEP Grp, Inst Fis Corpuscular, CSIC, Parc Cient Paterna,C Catedrat Jose Beltran 2, E-46980 Paterna, Valencia, Spain
来源：
PHYSICAL REVIEW D | 2022年 / 106卷 / 07期
关键词：
NEUTRINO OSCILLATION EXPERIMENTS; CP VIOLATION; SEARCH; NONCONSERVATION; SIMULATION;
D O I：
10.1103/PhysRevD.106.075016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
引用
收藏
页数：16
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