Search for branons at LEP

2004/07/12 by L3 Collaboration, P. Achard, O. Adriani +98
Physics and Astronomy · #Black Holes and Theoretical Physics #Boson #Brane #Combinatorics #Context (archaeology) #Cosmology and Gravitation Theories #Dimension (graph theory) #Geography #Limit (mathematics) #Momentum (technical analysis) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Quantum mechanics #Theoretical physics #hep-ex

paper · pdf · doi:10.1016/j.physletb.2004.07.014

published as Phys.Lett.B597:145-154,2004

arxiv created 2004/07/12 · openalex publication_date 2004/07/24 · arxiv updated 2012/08/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We search, in the context of extra-dimension scenarios, for the possible existence of brane fluctuations, called branons. Events with a single photon or a single Z-boson and missing energy and momentum collected with the L3 detector in e⁺ e^- collisions at centre-of-mass energies sqrts=189-209 GeV are analysed. No excess over the Standard Model expectations is found and a lower limit at 95% confidence level of 103 GeV is derived for the mass of branons, for a scenario with small brane tensions. Alternatively, under the assumption of a light branon, brane tensions below 180 GeV are excluded.

Citations

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