On the time delay between ultra-relativistic particles

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dc.contributor.authorFleury, Pierre
dc.date.accessioned2023-06-05T10:40:11Z
dc.date.available2023-06-05T10:40:11Z
dc.date.issued2016
dc.description.abstractThe time delay between the receptions of ultra-relativistic particles emitted simultaneously is a useful observable for both fundamental physics and cosmology. The expression of the delay when the particles travel through an arbitrary spacetime has been derived recently by Fanizza et al., using a particular coordinate system and self-consistent assumptions. The present article shows that this formula enjoys a simple physical interpretation: the relative velocity between two ultra-relativistic particles is constant. This result reveals an interesting kinematical property of general relativity, namely that the tidal forces experienced by ultra-relativistic particles in the direction of their motion are much smaller than those experienced orthogonally to their motion.en_US
dc.identifier.citationFleury, P. (2016). On the time delay between ultra-relativistic particles. Physics Letters B, 760, 350-353. https://doi.org/10.1016/j.physletb.2016.07.010en_US
dc.identifier.issn1873-2445
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2016.07.010
dc.identifier.urihttp://hdl.handle.net/10566/9017
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectPhysicsen_US
dc.subjectCosmologyen_US
dc.subjectNeutrinosen_US
dc.subjectAstrophysicsen_US
dc.subjectMathematicsen_US
dc.titleOn the time delay between ultra-relativistic particlesen_US
dc.typeArticleen_US

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