Acciari, V. A.V. A.AcciariAnsoldi, S.S.AnsoldiANTONELLI, Lucio AngeloLucio AngeloANTONELLIArbet Engels, A.A.Arbet EngelsBaack, D.D.BaackBabić, A.A.BabićBanerjee, B.B.BanerjeeBarres de Almeida, U.U.Barres de AlmeidaBarrio, J. A.J. A.BarrioBecerra González, J.J.Becerra GonzálezBednarek, W.W.BednarekManeva, G.G.ManevaManganaro, M.M.ManganaroMannheim, K.K.MannheimMaraschi, L.L.MaraschiMariotti, M.M.MariottiMartínez, M.M.MartínezMazin, D.D.MazinMender, S.S.MenderMićanović, S.S.MićanovićMiceli, D.D.MiceliBellizzi, L.L.BellizziMiener, T.T.MienerMinev, M.M.MinevMiranda, J. M.J. M.MirandaMirzoyan, R.R.MirzoyanMolina, E.E.MolinaMoralejo, A.A.MoralejoMorcuende, D.D.MorcuendeMoreno, V.V.MorenoMoretti, E.E.MorettiMunar-Adrover, P.P.Munar-AdroverBernardini, E.E.BernardiniNeustroev, V.V.NeustroevNigro, C.C.NigroNilsson, K.K.NilssonNinci, D.D.NinciNishijima, K.K.NishijimaNoda, K.K.NodaNogués, L.L.NoguésNozaki, S.S.NozakiOhtani, Y.Y.OhtaniOka, T.T.OkaBerti, A.A.BertiOtero-Santos, J.J.Otero-SantosPalatiello, M.M.PalatielloPaneque, D.D.PanequePaoletti, R.R.PaolettiParedes, J. M.J. M.ParedesPavletić, L.L.PavletićPeñil, P.P.PeñilPerennes, C.C.PerennesPeresano, M.M.PeresanoPERSIC, MassimoMassimoPERSICBesenrieder, J.J.BesenriederPrada Moroni, Pier GiorgioPier GiorgioPrada MoroniPRANDINI, ELISAELISAPRANDINIPuljak, I.I.PuljakRhode, W.W.RhodeRibó, M.M.RibóRico, J.J.RicoRIGHI, ChiaraChiaraRIGHIRugliancich, A.A.RugliancichSaha, L.L.SahaSahakyan, N.N.SahakyanBhattacharyya, W.W.BhattacharyyaSaito, T.T.SaitoSakurai, S.S.SakuraiSatalecka, K.K.SataleckaSchleicher, B.B.SchleicherSchmidt, K.K.SchmidtSchweizer, T.T.SchweizerSitarek, J.J.SitarekŠnidarić, I.I.ŠnidarićSobczynska, D.D.SobczynskaSPOLON, AlessiaAlessiaSPOLONBIGONGIARI, CiroCiroBIGONGIARISTAMERRA, AntonioAntonioSTAMERRAStrom, D.D.StromStrzys, M.M.StrzysSuda, Y.Y.SudaSurić, T.T.SurićTakahashi, M.M.TakahashiTAVECCHIO, FabrizioFabrizioTAVECCHIOTemnikov, P.P.TemnikovTerzić, T.T.TerzićTeshima, M.M.TeshimaBiland, A.A.BilandTorres-Albà, N.N.Torres-AlbàTosti, L.L.Tostivan Scherpenberg, J.J.van ScherpenbergVanzo, G.G.VanzoVazquez Acosta, M.M.Vazquez AcostaVentura, S.S.VenturaVerguilov, V.V.VerguilovVigorito, C. F.C. F.VigoritoVitale, V.V.VitaleVovk, I.I.VovkBlanch, O.O.BlanchWill, M.M.WillZarić, D.D.ZarićNAVA, LaraLaraNAVAMAGIC CollaborationBONNOLI, GiacomoGiacomoBONNOLIBošnjak, Ž.Ž.BošnjakBusetto, G.G.BusettoCarosi, R.R.CarosiCeribella, G.G.CeribellaCerruti, M.M.CerrutiChai, Y.Y.ChaiChilingarian, A.A.ChilingarianCikota, S.S.CikotaColak, S. M.S. M.ColakColin, U.U.ColinColombo, E.E.ColomboContreras, J. L.J. L.ContrerasCortina, J.J.CortinaCOVINO, StefanoStefanoCOVINOD'Amico, G.G.D'AmicoD'ELIA, ValerioValerioD'ELIADA VELA, PaoloPaoloDA VELADAZZI, FrancescoFrancescoDAZZIde Angelis, A.A.de Angelisde Lotto, B.B.de LottoDelfino, M.M.DelfinoDelgado, J.J.DelgadoDepaoli, D.D.Depaolidi Pierro, F.F.di Pierrodi Venere, L.L.di VenereDo Souto Espiñeira, E.E.Do Souto EspiñeiraDominis Prester, D.D.Dominis PresterDONINI, AliceAliceDONINIDorner, D.D.DornerDoro, M.M.DoroElsaesser, D.D.ElsaesserFallah Ramazani, V.V.Fallah RamazaniFattorini, A.A.FattoriniFerrara, G.G.FerraraFOFFANO, LucaLucaFOFFANOFonseca, M. V.M. V.FonsecaFont, L.L.FontFruck, C.C.FruckFukami, S.S.FukamiGarcía López, R. J.R. J.García LópezGarczarczyk, M.M.GarczarczykGasparyan, S.S.GasparyanGaug, M.M.GaugGiglietto, N.N.GigliettoGiordano, F.F.GiordanoGliwny, P.P.GliwnyGodinović, N.N.GodinovićGreen, D.D.GreenHadasch, D.D.HadaschHahn, A.A.HahnHerrera, J.J.HerreraHoang, J.J.HoangHrupec, D.D.HrupecHütten, M.M.HüttenInada, T.T.InadaInoue, S.S.InoueIshio, K.K.IshioIwamura, Y.Y.IwamuraJouvin, L.L.JouvinKajiwara, Y.Y.KajiwaraKarjalainen, M.M.KarjalainenKerszberg, D.D.KerszbergKobayashi, Y.Y.KobayashiKubo, H.H.KuboKushida, J.J.KushidaLAMASTRA, AlessandraAlessandraLAMASTRALelas, D.D.LelasLEONE, FrancescoFrancescoLEONELindfors, E.E.LindforsLOMBARDI, SaverioSaverioLOMBARDILongo, F.F.LongoLópez, M.M.LópezLópez-Coto, R.R.López-CotoLópez-Oramas, A.A.López-OramasLoporchio, S.S.LoporchioMachado de Oliveira Fraga, B.B.Machado de Oliveira FragaMaggio, C.C.MaggioMajumdar, P.P.MajumdarMakariev, M.M.MakarievMallamaci, M.M.Mallamaci2025-02-182025-02-1820200031-9007http://hdl.handle.net/20.500.12386/36039On January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever observed from a gamma-ray burst. We use this unique observation to probe an energy dependence of the speed of light in vacuo for photons as predicted by several quantum gravity models. Based on a set of assumptions on the possible intrinsic spectral and temporal evolution, we obtain competitive lower limits on the quadratic leading order of speed of light modification.STAMPAenArticle10.1103/PhysRevLett.125.0213012-s2.0-85088142435http://arxiv.org/abs/2001.09728v4https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.0213012020PhRvL.125b1301AFIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation