Can gravitation accelerate neutrinos?

Sergio A. Hojman, Felipe A. Asenjo

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


The Lagrangian equations of motion for massive spinning test particles (tops) moving on a gravitational background using general relativity are presented. The paths followed by tops are nongeodesic. An exact solution for the motion of tops on a Schwarzschild background which allows for superluminal propagation of tops is studied. It is shown that the solution becomes relevant for particles with small masses, such as neutrinos. This general result is used to calculate the necessary condition to produce superluminal motion in part of the trajectory of a small mass particle in a weak gravitational field. The condition for superluminal motion establishes a relation between the mass, energy and total angular momentum of the particle.

Original languageEnglish
Article number025008
JournalClassical and Quantum Gravity
Issue number2
StatePublished - 21 Jan 2013


Dive into the research topics of 'Can gravitation accelerate neutrinos?'. Together they form a unique fingerprint.

Cite this