Abstract
Arrival times of photons from four bright GRBs observed by Fermi-LAT have been analyzed in order to detect a possible Lorentz Invariance Violation (LIV), related to a non trivial dispersion of light in vacuum. No delays have been detected and strong limits on the Quantum Gravity (QG) energy scale: for linear dispersion we set tight constraints placing the QG energy scale above the Planck mass; a quadratic leading LIV effect is also constrained.
Original language | English |
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Title of host publication | Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013 |
Publisher | Sociedade Brasileira de Fisica |
ISBN (Electronic) | 9788589064293 |
State | Published - 2013 |
Event | 33rd International Cosmic Rays Conference, ICRC 2013 - Rio de Janeiro, Brazil Duration: 2 Jul 2013 → 9 Jul 2013 |
Publication series
Name | Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013 |
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Volume | 2013-October |
Conference
Conference | 33rd International Cosmic Rays Conference, ICRC 2013 |
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Country/Territory | Brazil |
City | Rio de Janeiro |
Period | 2/07/13 → 9/07/13 |
Bibliographical note
Publisher Copyright:© 2013 Sociedade Brasileira de Fisica. All Rights Reserved.
Keywords
- Fermi
- Gamma-ray bursters
- Lorentz invariance
- Quantum gravity
- Vacuum dispersion