Minimal decaying Dark Matter and the LHC

2013/05/28 by Giorgio Arcadi, Laura Covi · 2 citations
Physics and Astronomy · #Collider #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Fermion #Large Hadron Collider #MAJORANA #Measure (data warehouse) #Particle physics theoretical and experimental studies #Symmetry breaking #WIMP #Weakly interacting massive particles #hep-ph

paper · pdf · doi:10.1088/1475-7516/2013/08/005

33 pages, 13 figures

arxiv created 2013/05/28 · openalex publication_date 2013/08/05 · arxiv updated 2015/06/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We consider a minimal Dark Matter model with just two additional states, a Dark Matter Majorana fermion and a colored or electroweakly charged scalar, without introducing any symmetry to stabilize the DM state. We identify the parameter region where an indirect DM signal would be within the reach of future observations and the DM relic density generated fits the observations. We find in this way two possible regions in the parameter space, corresponding to a FIMP/SuperWIMP or a WIMP DM. We point out the different collider signals of this scenario and how it will be possible to measure the different couplings in case of a combined detection.

Citations

• Cosmic abundances of stable particles: Improved analysis
• H.E.S.S. constraints on dark matter annihilations towards the sculptor and carina dwarf galaxies
• Model with dynamicalR-parity breaking and unstable gravitino dark matter
• Neutralino relic density including coannihilations
• Radiative gravitino decays from R-parity violation
• PAMELA/ATIC anomaly from the meta-stable extra dark matter component and the leptophilic Yukawa interaction
• Search for anomalous production of multilepton events in pp collisions at √ s = 7 TeV
• Photon events with missing energy in e + e- collisions at √(s) = 130 to 209 GeV
• Particle dark matter: evidence, candidates and constraints
• First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV
• The number density of a charged relic
• Missing energy signatures of dark matter at the LHC
• Neutralino-nucleon scattering reexamined
• Direct detection of sub-GeV dark matter
• Restrictions on parameters of sterile neutrino dark matter from observations of galaxy clusters

Cited by

• Neutrino mass, leptogenesis and FIMP dark matter in a U(1)_B-L U ( 1 ) B - L model
• Reconstructing particle masses in events with displaced vertices