Speaker
Tatiana Araya-Santander
(Universidad Católica del Norte)
Description
Using the 59.1-day publicly released JUNO spectrum, we study the impact of isotropic Standard Model Extension coefficients on the antineutrino survival probability. We perform two-dimensional $\Delta \chi^2$ scans exploring the joint parameter space of CPT-even and CPT-odd Lorentz invariance violating coefficients. Our analysis provides JUNO-based constraints on isotropic LIV parameter combinations, offering complementary information to existing bounds. We find that the inclusion of LIV effects induces shifts in the solar parameter space. In particular, for normal mass ordering, the best-fit region moves toward higher values of the solar mixing angle, leading to a preference for inverted ordering when LIV is included.
Authors
Dr
Cesar Bonilla Díaz
(Universidad Católica del Norte)
Dr
Surpiya Pan
(Universidad Católica del Norte)
Tatiana Araya-Santander
(Universidad Católica del Norte)