Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/28252
Share/Impact:
Title: Identification of dark matter particles with LHC and direct detection data
Authors: Ruiz de Austri, Roberto, Trotta, R., Fornasa, M., Cerdeño, David G., Bertone, G.
Issue Date: 10-Sep-2010
Publisher: American Physical Society
Abstract: Dark matter (DM) is currently searched for with a variety of detection strategies. Accelerator searches are particularly promising, but even if weakly interacting massive particles are found at the Large Hadron Collider (LHC), it will be difficult to prove that they constitute the bulk of the DM in the Universe Omega(DM). We show that a significantly better reconstruction of the DM properties can be obtained with a combined analysis of LHC and direct detection data, by making a simple Ansatz on the weakly interacting massive particles local density rho(0)((chi) over bar1), i.e., by assuming that the local density scales with the cosmological relic abundance, (rho(0)((chi) over bar1)/rho(DM)) = (Omega(0)((chi) over bar1)/Omega(DM)). We demonstrate this method in an explicit example in the context of a 24-parameter supersymmetric model, with a neutralino lightest supersymmetric particle in the stau coannihilation region. Our results show that future ton-scale direct detection experiments will allow to break degeneracies in the supersymmetric parameter space and achieve a significantly better reconstruction of the neutralino composition and its relic density than with LHC data alone.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevD.82.055008
URI: http://hdl.handle.net/10261/28252
ISSN: 1550-7998
???metadata.dc.identifier.doi???: 10.1103/PhysRevD.82.055008
Citation: Physical Review - Section D - Particles and Fields 82 (5): 055008 (2010)
Appears in Collections:(IFIC) Artículos

Files in This Item:
File Description SizeFormat 
Dark Matter.pdf245,44 kBAdobe PDFView/Open
Show full item record
 
CSIC SFX LinksSFX Query


Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.