Sunday, February 28, 2010

Dark Matter?

As time passes and more experiments are getting their bearings, the case seems to be strengthening. Now it is the  CoGeNT collaboration.

"In conclusion, we presently lack a satisfactory explanation for the observed low-energy rise in a PPC spectrum devoid of most surface events. In view of its apparent agreement with existing WIMP models, a claim and a glimmer of dark matter detection in two other experiments, it is tempting to consider a cosmological origin. Prudence and past experience prompt us to continue work to exhaust less exotic possibilities. We extend an invitation to other researchers in this field to proceed with the same caution. If this feature were to originate in dark matter interactions, a PPC-based 60 kg Majorana Demonstrator [21] would unequivocally detect an annual modulation effect in both rate and average energy deposited. Indirect searches should soon probe the relevant WIMP phase space region [8]."
Taken from the link above.

A ticket to Stockholm, anybody?

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