CPT and CP, an entangled couple

Autor: Gabriela Barenboim, Christoph A. Ternes, Mariam Tórtola
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of High Energy Physics, Vol 2020, Iss 7, Pp 1-12 (2020)
Druh dokumentu: article
ISSN: 1029-8479
DOI: 10.1007/JHEP07(2020)155
Popis: 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.
Databáze: Directory of Open Access Journals