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19 April 2024

» arxiv » 1004.2867

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A new limit on the light speed isotropy from the GRAAL experiment at the ESRF
V.G.Gurzadyan ; V. Bellini ; M. Beretta ; J.-P. Bocquet ; A. D'Angelo ; R. Di Salvo ; A. Fantini ; D. Franco ; G. Gervino ; G. Giardina ; F. Ghio ; B. Girolami ; A. Giusa ; A. Kashin ; H.G. Khachatryan ; S. Knyazyan ; A. Lapik ; P. Levi Sandri ; A. Lleres ; F. Mammoliti ; G. Mandaglio ; M. Manganaro ; A. Margarian ; S. Mehrabyan ; R. Messi ; D. Moricciani ; V. Nedorezov ; D. Rebreyend ; G. Russo ; N. Rudnev ; C. Schaerf ; M.-L. Sperduto ; M.-C. Sutera ; A. Turinge ; V. Vegna ;
Date:	16 Apr 2010
Abstract:	When the electrons stored in the ring of the European Synchrotron Radiation Facility (ESRF, Grenoble) scatter on a laser beam (Compton scattering in flight) the lower energy of the scattered electron spectra, the Compton Edge (CE), is given by the two body photon-electron relativistic kinematics and depends on the velocity of light. A precision measurement of the position of this CE as a function of the daily variations of the direction of the electron beam in an absolute reference frame provides a one-way test of Relativistic Kinematics and the isotropy of the velocity of light. The results of GRAAL-ESRF measurements improve the previously existing one-way limits, thus showing the efficiency of this method and the interest of further studies in this direction.
Source:	arXiv, 1004.2867
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