Medvedev said that dark matter may interact with normal matter extremely weakly, which is why it hasnt been revealed already in numerous ongoing direct detection experiments around the world. So physicists have devised a working model of completely collisionless (noninteracting), cold (that is, having very low thermal velocities) dark matter with a cosmological constant (the perplexing energy density found in the void of outer space), which they term the Lambda-CDM model. But the model has hasnt always agreed with observational data, until Medvedevs paper solved the theorys long-standing and troublesome puzzles. Our results demonstrated that the flavor-mixed, two-component dark matter model resolved all the most pressing Lambda-CDM problems simultaneously, said the KU researcher. Read more at: phys.org/news/2014-09-advances-cosmological-enigmadark.html#jCp
Posted on: Thu, 04 Sep 2014 17:19:30 +0000
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