CPT and CP, an entangled couple

CPT and CP, an entangled couple

Abstract Even though it is undoubtedly very appealing to interpret the latest T2K results as evidence of CP violation, this claim assumes CPT conservation in the neutrino sector to an extent that has not been tested yet. As we will show, T2K results are not robust against a CPT-violating explanation...

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Main Authors: Gabriela Barenboim, Christoph A. Ternes, Mariam Tórtola
Format: Article
Language:English
Published: SpringerOpen 2020-07-01
Series:Journal of High Energy Physics
Subjects:
CP violation
Neutrino Physics
Beyond Standard Model
Online Access:http://link.springer.com/article/10.1007/JHEP07(2020)155
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spelling doaj-02a584a3b80f4534b517500a3b70c0432020-11-25T03:05:51ZengSpringerOpenJournal of High Energy Physics1029-84792020-07-012020711210.1007/JHEP07(2020)155CPT and CP, an entangled coupleGabriela Barenboim0Christoph A. Ternes1Mariam Tórtola2Departamento de Física Teórica and IFIC, Universitat de Valencia-CSICDepartamento de Física Teórica and IFIC, Universitat de Valencia-CSICDepartamento de Física Teórica and IFIC, Universitat de Valencia-CSICAbstract Even though it is undoubtedly very appealing to interpret the latest T2K results as evidence of CP violation, this claim assumes CPT conservation in the neutrino sector to an extent that has not been tested yet. As we will show, T2K results are not robust against a CPT-violating explanation. On the contrary, a CPT-violating CP-conserving scenario is in perfect agreement with current neutrino oscillation data. Therefore, to elucidate whether T2K results imply CP or CPT violation is of utter importance. We show that, even after combining with data from NOνA and from reactor experiments, no claims about CP violation can be made. Finally, we update the bounds on CPT violation in the neutrino sector.http://link.springer.com/article/10.1007/JHEP07(2020)155CP violationNeutrino PhysicsBeyond Standard Model
collection DOAJ
language English
format Article
sources DOAJ
author Gabriela Barenboim
Christoph A. Ternes
Mariam Tórtola
spellingShingle Gabriela Barenboim
Christoph A. Ternes
Mariam Tórtola
CPT and CP, an entangled couple
Journal of High Energy Physics
CP violation
Neutrino Physics
Beyond Standard Model
author_facet Gabriela Barenboim
Christoph A. Ternes
Mariam Tórtola
author_sort Gabriela Barenboim
title CPT and CP, an entangled couple
title_short CPT and CP, an entangled couple
title_full CPT and CP, an entangled couple
title_fullStr CPT and CP, an entangled couple
title_full_unstemmed CPT and CP, an entangled couple
title_sort cpt and cp, an entangled couple
publisher SpringerOpen
series Journal of High Energy Physics
issn 1029-8479
publishDate 2020-07-01
description Abstract Even though it is undoubtedly very appealing to interpret the latest T2K results as evidence of CP violation, this claim assumes CPT conservation in the neutrino sector to an extent that has not been tested yet. As we will show, T2K results are not robust against a CPT-violating explanation. On the contrary, a CPT-violating CP-conserving scenario is in perfect agreement with current neutrino oscillation data. Therefore, to elucidate whether T2K results imply CP or CPT violation is of utter importance. We show that, even after combining with data from NOνA and from reactor experiments, no claims about CP violation can be made. Finally, we update the bounds on CPT violation in the neutrino sector.
topic CP violation
Neutrino Physics
Beyond Standard Model
url http://link.springer.com/article/10.1007/JHEP07(2020)155
work_keys_str_mv AT gabrielabarenboim cptandcpanentangledcouple
AT christophaternes cptandcpanentangledcouple
AT mariamtortola cptandcpanentangledcouple
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