Publication at Faculty of Mathematics and Physics |
2009
Abstract
Single photons detected by the DELPHI experiment at LEP2 in the years 1997-2000 are reanalysed to investigate the existence of a single extra dimension in a modified ADD scenario with slightly warped large extra dimensions. The data collected at centre-of-mass energies between 180 and 209 GeV for an integrated luminosity of 650 pb-1 agree with the predictions of the Standard Model and allow a limit to be set on graviton emission in one large extra dimension.
The limit obtained on the fundamental mass scale M D is 1.69 TeV/c 2 at 95% CL, with an expected limit of 1.71 TeV/c 2.