Search for high-mass diphoton resonances in pp collisions at pffisffi root s=8 TeV with the ATLAS detector
2015
Abstrakt
This article describes a search for high-mass resonances decaying to a pair of photons using a sample of 20.3 fbMINUS SIGN 1 of pp collisions at ffisffiffi p 1/4 8 TeV recorded with the ATLAS detector at the Large Hadron Collider. The data are found to be in agreement with the Standard Model prediction, and limits are reported in the framework of the Randall-Sundrum model.
This theory leads to the prediction of graviton states, the lightest of which could be observed at the Large Hadron Collider. A lower limit of 2.66 (1.41) TeVat 95% confidence level is set on the mass of the lightest graviton for couplings of k=MPl 1/4 0.1 (0.01).