PPC 2024: XVII International Conference on Interconnections between Particle Physics and Cosmology

Validating Layered Structure Inside Earth Using Atmospheric Neutrino Oscillations at IceCube DeepCore

15 Oct 2024, 18:00

15m

Seminar Room 3-4, Convention Center (IIT Hyderabad)

Parallel talk Parallel - Neutrino

Speaker

Mr Krishnamoorthi J (Aligarh Muslim University, Aligarh, Institute of Physics, Bhubaneswar)

Description

The IceCube DeepCore detector, with its denser central arrangement, can detect sub-GeV atmospheric neutrinos. The oscillation pattern of neutrinos is altered due to interactions with ambient matter as they travel. The changes in these patterns are influenced by the amount of matter and its specific arrangement. As neutrinos propagate, they retain information about the densities they encounter. Our study demonstrates that IceCube DeepCore can utilize the Earth's matter effects to distinguish between a homogeneous matter density profile and a layered structure density profile. In this talk, we show that using 9.3 years of IceCube DeepCore data, IceCube DeepCore rejects the homogeneous matter density profile with a confidence level of 1.4𝜎. Additionally, we will discuss the potential improvements in Asimov sensitivity with the upcoming IceCube Upgrade, an extension of the IceCube DeepCore detector setup.

Presentation materials

PPC_2024_krishnamoorthi_J-1.pdf