non-baryonic dark matter now detected at 8.2 sigma: DAMA/NaI + DAMA/LIBRA - Bernabei et al. ArXiv:0804.2741
witam cosmo-torun, The DAMA detections of nbDM seem to be getting even stronger! Bernabei et al. ArXiv:0804.2741 now have their annual modulation signal of non-baryonic dark matter from the Galactic DM Halo detected "at 8.2 sigma CL": DAMA/NaI + DAMA/LIBRA. Figures 2, 4 and 8 are especially impressive. Savage et al. have a nice article ArXiv:0808.3607 showing the regions of parameter space for WIMPS for which are consistent with both the DAMA detection and all the non-detections in other experiments. E.g. spin-dependent, proton-only couplings for a particle mass of about 5-9 GeV are one region compatible with all the data. This doesn't stop LDM (light dark matter) *also* being a correct hypothesis for nbDM - multiple DM particles may contribute together to non-baryonic DM. pozdr boud
witam cosmo-torun cosmo workshop: 16.00 Friday 22 May @KRA: Light Dark Matter - research methods and observational prospects Agnieszka Szaniewska The DAMA results look good (8.2 sigma is pretty significant!), but chances are the nbDM is a *mix* of many different particles. The INTEGRAL/SPI 511keV detection has to be explained somehow, so LDM continues to be the best explanation so far. pozdr boud On Tue, 19 May 2009, Boud Roukema wrote:
witam cosmo-torun,
The DAMA detections of nbDM seem to be getting even stronger!
Bernabei et al. ArXiv:0804.2741 now have their annual modulation signal of non-baryonic dark matter from the Galactic DM Halo detected "at 8.2 sigma CL": DAMA/NaI + DAMA/LIBRA. Figures 2, 4 and 8 are especially impressive.
Savage et al. have a nice article ArXiv:0808.3607 showing the regions of parameter space for WIMPS for which are consistent with both the DAMA detection and all the non-detections in other experiments. E.g. spin-dependent, proton-only couplings for a particle mass of about 5-9 GeV are one region compatible with all the data.
This doesn't stop LDM (light dark matter) *also* being a correct hypothesis for nbDM - multiple DM particles may contribute together to non-baryonic DM.
pozdr boud
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Boud Roukema