Signature of neutrino mass hierarchy in gravitational lensing

  title={Signature of neutrino mass hierarchy in gravitational lensing},
  author={Himanshu Swami and Kinjalk Lochan and K. Patel},
  journal={Physical Review D},
In flat spacetime, the vacuum neutrino flavor oscillations are known to be sensitive only to the difference between the squared masses, and not to the individual masses, of neutrinos. In this work, we show that the lensing of neutrinos induced by a gravitational source substantially modifies this standard picture and it gives rise to a novel contribution through which the oscillation probabilities also depend on the individual neutrino masses. A gravitating mass located between a source and a… 

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