Rare quadruplet 'top quarks' created at world's largest atom smasher

rod

Oct 22, 2019
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Interesting report. I note from the report, "Physicists searched for top-quark quartets in data collected by ATLAS and CMS between 2015 and 2018. The ATLAS experiment team announced that they have seen the production of four top quarks with a sigma of 4.3. Meanwhile, in a paper published to the European Physical Journal C, researchers from the CMS experiment reported an observed sigma of just 2.6 for their quadruplet top quarks. Prior to conducting the experiment, both ATLAS and CMS expected a significance of about 2.6 sigma."

The same project ATLAS during 2015-2018, searched for dark matter or DM via Higgs boson decay and did not find this, https://phys.org/news/2020-06-probing-dark-higgs-boson.html, "This observed exclusion is consistent with no signs of the Higgs boson decaying to dark matter. The new results advance the search for weakly interacting massive particles (WIMPs), a popular candidate for dark matter."

So I see here one report using ATLAS to support BB cosmology and the same ATLAS did not find DM :)
 

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