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A limit on the variation of the speed of light arising from quantum gravity effects

A.A. Abdo Markus Ackermann Marco Ajello K. Asano William B. Atwood Magnus Axelsson Luca Baldini Jean Ballet 1 Guido Barbiellini Matthew G. Baring D. Bastieri K. Bechtol R. Bellazzini 1 B. Berenji P. N. Bhat E. Bissaldi E.D. Bloom E. Bonamente J. Bonnell A.W. Borgland A. Bouvier J. Bregeon A. Brez M. S. Briggs M. Brigida Pascal Bruel 2 J.M. Burgess T.H. Burnett G. A. Caliandro R. A. Cameron P. A. Caraveo J.M. Casandjian 1 C. Cecchi O. Celik V. Chaplin E. Charles C.C. Cheung J. Chiang S. Ciprini R. Claus J. Cohen-Tanugi 3 L. R. Cominsky V. Connaughton J. Conrad S. Cutini C.D. Dermer A. de Angelis F. de Palma S.W. Digel B. L. Dingus E. Do Couto E Silva P. S. Drell R. Dubois D. Dumora 4 C. Farnier 3 C. Favuzzi S.J. Fegan 2 J. Finke G. Fishman W.B. Focke L. Foschini Y. Fukazawa S. Funk P. Fusco F. Gargano D. Gasparrini N. Gehrels S. Germani L. Gibby B. Giebels 2 N. Giglietto F. Giordano T. Glanzman G. Godfrey J. Granot J. Greiner I.A. Grenier 1 M.H. Grondin 4 J.E. Grove D. Grupe L. Guillemot 4 S. Guiriec 3 Y. Hanabata A. K. Harding M. Hayashida E. Hays E.A. Hoversten R.E. Hugues G. Jóhannesson A. S. Johnson R. P. Johnson W. N. Johnson T. Kamae H. Katagiri J. Kataoka N. Kawai M. Kerr R. M. Kippen J. Knödlseder D. Kocevski C. Kouveliotou F. Kuehn M. Kuss J. Lande L. Latronico M. Lemoine-Goumard 4 F. Longo F. Loparco B. Lott 4 M.N. Lovellette P. Lubrano G.M. Madjeski A. Makeev M.N. Mazziotta S. Mcbreen J.E. Mcenery S. Mcglynn P. Mészáros C. Meurer P.F. Michelson W. Mitthumsiri T. Mizuno A.A. Moiseev C. Monte M.E. Monzani E. Moretti A. Morselli I. V. Moskalenko S. Murgia T. Nakamori P.L. Nolan J.P. Norris E. Nuss 3 M. Ohno T. Ohsugi N. Omodei E. Orlando J.F. Ormes M. Ozaki W. S. Paciesas D. Paneque J.H. Panetta D. Parent 4 V. Pelassa 3 M. Pepe M. Pesce-Rollins V. Petrosian F. Piron 3 T.A. Porter R. Preece S. Rainò E. Ramirez-Ruiz R. Rando M. Razzano S. Razzaque A. Reimer O. Reimer T. Reposeur 4 S. Ritz L.S. Rochester A.Y. Rodriguez M. Roth F. Ryde H. F.-W. Sadrozinski D. Sanchez 2 A. Sander P.M. Saz Parkinson J.D. Scargle T. L. Schalk G. Sgro E.J. Siskind D.A. Smith 4 P.D. Smith G. Spandre P. Spinelli M. Stamatikos F. W. Stecker M.S. Strickman D.J. Suson H. Tajima H. Takahashi T. Takahashi T. Tanaka J.B. Thayer J.G. Thayer D.J. Thompson L. Tibaldo 1 K. Toma D.F. Torres G. Tosti E. Troja Y. Uchiyama T. Uehara T.L. Usher A. J. van der Horst V. Vasileiou N. Vilchez 5 V. Vitale A. von Kienlin A. P. Waite P. Wang C. Wilson-Hodge B. L. Winer K.S. Wood X. F. Wu R. Yamazaki T. Ylinen M. Ziegler
1 AIM (UMR_7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation
2 LLR - Laboratoire Leprince-Ringuet
3 LPTA - Laboratoire de Physique Théorique et Astroparticules
4 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
5 CESR - Centre d'étude spatiale des rayonnements
Abstract : A cornerstone of Einstein's special relativity is Lorentz invariance-the postulate that all observers measure exactly the same speed of light in vacuum, independent of photon-energy. While special relativity assumes that there is no fundamental length-scale associated with such invariance, there is a fundamental scale (the Planck scale, l(Planck) approximate to 1.62 x 10(-33) cm or E-Planck = M(Planck)c(2) approximate to 1.22 x 10(19) GeV), at which quantum effects are expected to strongly affect the nature of space-time. There is great interest in the (not yet validated) idea that Lorentz invariance might break near the Planck scale. A key test of such violation of Lorentz invariance is a possible variation of photon speed with energy(1-7). Even a tiny variation in photon speed, when accumulated over cosmological light-travel times, may be revealed by observing sharp features in gamma-ray burst (GRB) light-curves(2). Here we report the detection of emission up to similar to 31GeV from the distant and short GRB090510. We find no evidence for the violation of Lorentz invariance, and place a lower limit of 1.2E(Planck) on the scale of a linear energy dependence (or an inverse wavelength dependence), subject to reasonable assumptions about the emission (equivalently we have an upper limit of l(Planck)/1.2 on the length scale of the effect). Our results disfavour quantum-gravity theories(3,6,7) in which the quantum nature of space-time on a very small scale linearly alters the speed of light.
Keywords : GAMMA-RAY BURSTS HIGH-ENERGY VIOLATION EMISSION PHOTONS LORENTZ TESTS FOAM
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http://hal.in2p3.fr/in2p3-00436584
Contributor : Virginie Mas <>
Submitted on : Friday, November 27, 2009 - 10:12:50 AM
Last modification on : Saturday, April 11, 2020 - 2:02:02 AM

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A.A. Abdo, Markus Ackermann, Marco Ajello, K. Asano, William B. Atwood, et al.. A limit on the variation of the speed of light arising from quantum gravity effects. Nature, Nature Publishing Group, 2009, 462, pp.331-334. ⟨10.1038/nature08574⟩. ⟨in2p3-00436584⟩

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