PT Journal
AU Barenboim, G
   Ternes, CA
   Tortola, M
TI CPT and CP, an entangled couple
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2020
BP 155 - 12pp
VL 07
IS 7
DI 10.1007/JHEP07(2020)155
LA English
DE CP violation; Neutrino Physics; Beyond Standard Model
AB 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 NO nu A and from reactor experiments, no claims about CP violation can be made. Finally, we update the bounds on CPT violation in the neutrino sector.
ER