| dc.contributor.author | Fleury, Pierre | |
| dc.date.accessioned | 2023-06-05T10:40:11Z | |
| dc.date.available | 2023-06-05T10:40:11Z | |
| dc.date.issued | 2016 | |
| dc.identifier.citation | Fleury, P. (2016). On the time delay between ultra-relativistic particles. Physics Letters B, 760, 350-353. https://doi.org/10.1016/j.physletb.2016.07.010 | en_US |
| dc.identifier.issn | 1873-2445 | |
| dc.identifier.uri | https://doi.org/10.1016/j.physletb.2016.07.010 | |
| dc.identifier.uri | http://hdl.handle.net/10566/9017 | |
| dc.description.abstract | The 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.language.iso | en | en_US |
| dc.publisher | Elsevier | en_US |
| dc.subject | Physics | en_US |
| dc.subject | Cosmology | en_US |
| dc.subject | Neutrinos | en_US |
| dc.subject | Astrophysics | en_US |
| dc.subject | Mathematics | en_US |
| dc.title | On the time delay between ultra-relativistic particles | en_US |
| dc.type | Article | en_US |
