Lorentz Invariance Violation searches with HESS


Bolmont, J. (2012). Lorentz Invariance Violation searches with HESS. Perimeter Institute. https://pirsa.org/12100084


Bolmont, Julien. Lorentz Invariance Violation searches with HESS. Perimeter Institute, Oct. 22, 2012, https://pirsa.org/12100084


          @misc{ pirsa_12100084,
            doi = {},
            url = {https://pirsa.org/12100084},
            author = {Bolmont, Julien},
            keywords = {},
            language = {en},
            title = {Lorentz Invariance Violation searches with HESS},
            publisher = {Perimeter Institute},
            year = {2012},
            month = {oct},
            note = {PIRSA:12100084 see, \url{https://pirsa.org}}


The high flux and variability of the blazar PKS 2155-304 as observed by H.E.S.S. during the night of 28 July 2006 allowed a very high precision search for Quantum Gravity-induced energy-dependent time lags. In this talk, I will review the results published by the H.E.S.S. collaboration on this topic. In particular, I will emphasize the latest results obtained using a likelihood fit to study individual photon data. With this method and a proper error calibration procedure, a very high precision measurement was achieved leading to the best constraints on linear and quadratic terms of the dispersion relations obtained with an AGN so far.