New constraints on Planck-scale Lorentz Violation in QED from the Crab Nebula
| Autor: | John G. Kirk, Annalisa Celotti, Luca Maccione, Stefano Liberati |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
High Energy Physics - Theory
Particle physics Photon Lorentz transformation gr-qc Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Electron high energy photons Astrophysics General Relativity and Quantum Cosmology symbols.namesake High Energy Physics - Phenomenology (hep-ph) Settore FIS/05 - Astronomia e Astrofisica astro-ph Dispersion relation Effective field theory quantum gravity phenomenology Physics hep-th Astrophysics (astro-ph) Astronomy and Astrophysics hep-ph Galaxy High Energy Physics - Phenomenology Crab Nebula High Energy Physics - Theory (hep-th) symbols High Energy Physics::Experiment Lepton |
| Popis: | We set constraints on O(E/M) Lorentz Violation in QED in an effective field theory framework. A major consequence of such assumptions is the modification of the dispersion relations for electrons/positrons and photons, which in turn can affect the electromagnetic output of astrophysical objects. We compare the information provided by multiwavelength observations with a full and self-consistent computation of the broad-band spectrum of the Crab Nebula. We cast constraints of order 10^{-5} at 95% confidence level on the lepton Lorentz Violation parameters. 23 pages, 9 figures. v2: added comments and references, matches version accepted by JCAP |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|