Measuring the mass of Earth and mass of Core using neutrino oscillations at IceCube DeepCore

15 Oct 2024, 15:45
15m
Seminar Room 3-4, Convention Center (IIT Hyderabad )

Seminar Room 3-4, Convention Center

IIT Hyderabad

Parallel talk Parallel - Neutrino

Speaker

Sharmistha Chattopadhyay

Description

The information about the mass of Earth and its internal structure has been obtained mainly using gravitational measurements and seismic studies, which depend upon gravitational and electromagnetic interactions, respectively. Neutrinos provide an independent way of exploring the interior of Earth using weak interactions through Earth’s matter effects in neutrino oscillations. Since these matter effects depend upon the number density of electrons, neutrino oscillations can be used to measure the amount of electrons and their distribution inside Earth. The electron number density can then be interpreted in terms of matter density inside Earth. In our study, we utilize atmospheric neutrinos at DeepCore, a densely instrumented sub-detector at the center of the IceCube Neutrino Observatory, to estimate the mass of Earth and the mass of Earth's core. Further, we have also evaluated the potential enhancement in our results with the upcoming Upgrade, which is an extension of the DeepCore, with more denser instrumentation. Our investigation not only provides valuable insights into Earth's composition but also showcases how neutrino oscillations enable new perspectives in probing the fundamental properties of our planet.

Track type Neutrino Physics

Author

Co-authors

Mr Anil Kumar (DESY) Mr Anuj Kumar Upadhyay (Institute of Physics, Bhubaneswar) Mr Krishnamoorthi J (Institute of Physics, Bhubaneswar) Mr Sanjib Kumar Agarwalla (Institute of Physics, Bhubaneswar)

Presentation materials