2010/01/08 by Haruka Namatame, HARUKA NAMATAME
Physics and Astronomy · #Collider #Extra dimensions #Graviton #High-Energy Particle Collisions Research #Large Hadron Collider #Large extra dimension #Momentum (technical analysis) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Universal extra dimension #Warp drive #hep-ph
paper · pdf · doi:10.1142/s0217751x10050421
published in International Journal of Modern Physics A 25(23), 4511-4523 (World Scientific) · 12 pages, no figure
arxiv created 2010/01/08 · openalex publication_date 2010/09/20 · arxiv updated 2014/11/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
It is pointed out in a class of models with large extra dimensions that the cross-section of processes with virtual Kaluza–Klein graviton exchanges becomes either much smaller or much larger by many orders of magnitude than what is expected from that of the on-shell production of the Kaluza–Klein gravitons. We demonstrate how the problem arises using a toy model. The cause of this new problem lies in the fact that we do not have momentum conservation in the extra dimensions. To search for the signal of the large extra dimensions with high energy collider experiments, we need more care in interpreting the earlier results on the cross-sections of these processes.