Excluded from the primordial core Excluded from the primordial core - synthesis and synthesis and the rest of the cosmological observations. Excluded from cosmological observations (they would Excluded from cosmological observations (they would .. constitute Hot Dark Matter) constitute Hot Dark Matter). Candidates for Dark Matter Candidates for Dark Matter Candidates for Dark Matter Candidates for Dark Matter.
Like LSP of supersymmetric theories Like LSP of supersymmetric (usually neutralino) theories. More generally, we talk about More generally, we talk about aksionaktion - similar particles to refer to fundamental. To make predictions of expected WIMP speech/signals, WIMP must be done.
DAMA
DAMA LIBRA LIBRADAMA
DAMA--LIBRA LIBRA
No systematic effect can No systematic effect can satisfactorily explain this (neutrons. Other Other NaINAI experiments that can experiments that can disprove/confirm DAMA result disprove/confirm DAMA result (neutrons,. New crystals with lower 40K New crystals with lower 40K) contamination on the way contamination on the way.
Nuclear back discrimination by Nuclear back discrimination by measurement of both charge and measurement of both charge and scintillation (2.
CDMS
WIMP
A competing detector for SD-interacting WIMPs For SD-interacting WIMPs, a competing detector based on He3 or CF4 already seems feasible. An early signal in solid state detectors would An early signal in solid state detectors would. Good sensitivity with 19F core Good sensitivity with 19F core to SD pure p couplings (also in SD pure p couplings (also in.
The CP-violating term in QCD is not forbidden But the neutron – the CP-violating term in QCD is not forbidden. In order to have a significant relativistic action density, the action density must be close to 1. Actions Against Neutralinos Neutralinos Actions Against Both actions and actions and neutralinos neutralinos are part of a well-motivated group.
Both shares and shares and neutralinos neutralinos are part of well-motivated additions. Both offer, in addition, a solution to the dark matter problem of dark matter. A priori, not A priori, no theoretical theoretical preference for one or the other.
Is there an observational observational preference for one or the other? unlike an eventual direct discovery of direct discovery)). Conventional conventional wisdom signatures CDM CDM at cosmological levels cosmological //astrophysical astrophysical does not distinguish stock vs. stock vs. stock bath in the early universe can be cooled photon bath down photon gravitational bath and affect the cosmological value of.
IsocurvatureIsocurvature fluctuations in the CMB would be indicative of actions (or fluctuations in the CMB would be indicative of actions (or ALPs). Current balance of effort (& resources) between actions Current balance of effort (& resources) between actions and WIMP searches too biased towards WIMPs.
ALPS
Dark Matter Axions: Haloscopes Dark Matter Axions: Haloscopes Dark Matter Axions: Haloscopes Dark Matter Axions: Haloscopes. Expected peak at right frequency (DM Expected peak at right frequency (DM axions are not .. axions are non--relativistic)relativistic) axions are not .. axions are non-relativistic)relativistic). Substructure of the peak can provide Substructure of the peak can provide information from the WIMP halo model information from the WIMP halo model.
ADMX in Livermore ADMX in Livermore (now in. now in UwashingtonUwashington)) –– Development Development of. Photon-produced solar actions Photon-produced solar actions--toto-- Solar plasma photon solar plasma photon conversion action conversion. CAST is the most powerful implementation CAST is the most powerful implementation of an action.
CAST Phase II: Gas Insertion (CAST Phase II: Gas Insertion (44He, He, 33He) inside He) inside magnetic bores to gain sensitivity to high magnetic bores to gain sensitivity to high axion masses. CAST is sensitive to QCD axions at CAST is sensitive to QCD axions at 0.1. IAXO at the high-mass end and future ADMX phases at the low-mass end.
Growing Observational Evidence for Dark Matter (cosmological, Growing Observational Evidence for Dark Matter (cosmological, astrophysical) . astrophysical ) astrophysical,…). astrophysics,...). Many other activities in parallel (SD joins, running with TPC, …) Many other activities in parallel (SD joins, running with TPC, ...) New "frontline" in small scale very active WIMP (DAMA. " New Front Line" low mass highly active WIMPs (Dama CoGeNTCoGeNT "hits")"hincs") –– "New Movement" low mass highly active WIMPs (DAMA, "new line" mass low very active WIMPs (DAMA, CoGeNTCoGeNT "hits"). ").
AXIONS has a great (possibly growing) motivation as a DARK AXIONS has a great (possibly growing) motivation as a DARK MATTER candidate. High chances of fully investigating the WIMP hypothesis (with LHC and indirect searches). High chances of fully investigating the WIMP hypothesis (with results from LHC and indirect searches). . Results). Much of the axion parameter space will also be explored with ADMX+ and IAXO.
A good portion of the action parameter space will also be investigated with ADMX+ & IAXO.
