Определение спина узких гравитонных резонансов Калуцы-Клейна в процессе рождения лептонных пар на большом адронном коллайдере LHC в эксперименте Атлас

Abstract

The method to identity the spin of the first excitation of the graviion state predicted by the Randal 1-Sundmm model with extra spatial dimensions in lepton pair production at the Large Hadron Collider (LHC> was proposed. This method is based on the analysis of the specific angular distributions of the lepton pairs- graviton decay products. We find the discovery (iden­ tification) reaches of the gravitons at the 5<j level (95% C.L.) at the LHC in the ATLAS experiment that are 2.1 TeV (1.2 TeV) and 3.9 TeV (2.9 TeV> for ktM />/ =0,01 and 0.1, respectively.