Effects of gravitational lensing by Kaluza-Klein black holes on neutrino oscillations


Chakrabarty H. Chatrabhuti A. Malafarina D. Silasan B. Tangphati T.
1 August 2023Institute of Physics

Journal of Cosmology and Astroparticle Physics
2023#2023

We study gravitational lensing of neutrinos in a Kaluza-Klein black hole spacetime and compare the oscillation probabilities of neutrinos with the case of lensing by black holes in General Relativity. We show that measuring neutrino oscillations in curved spacetimes may allow us to distinguish the two kinds of black holes even in the weak-field limit, as opposed to what happens for the weak lensing of photons. This promises to become an useful tool for future measurements of the properties of black hole candidates and possibly help to constrain the validity of alternative theories of gravity.

GR black holes , modified gravity , neutrino astronomy

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School of Astronomy and Space Sciences, University of Chinese Academy of Sciences, 52 Sanlihe Road, Beijing, China
Department of Physics, Nazarbayev University, 53 Kabanbay Batyr avenue, Astana, 010000, Kazakhstan
High Energy Physics Research Unit, Department of Physics, Science, Chulalongkorn University, 254 Phaya Thai Road, Bangkok, 10330, Thailand
School of Science, Walailak University, Thasala, Nakhon Si Thammarat, 80160, Thailand

School of Astronomy and Space Sciences
Department of Physics
High Energy Physics Research Unit
School of Science

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