Monthly Archives: May 2011

Gunion in ArXiv: A 4th generation is ruled out if the SM Higgs has mass below 200 GeV

John F. Gunion (University of California, Davis) claims in “Ruling out a 4th generation using limits on hadron collider Higgs signals,” ArXiv, 19 May 2011, that the Tevatron and LHC data have essentially eliminated the possibility of a 4th generation … Continue reading

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Moczek in Nature: “The origins of novelty in evolutionary biology”

“Treehoppers are insects that would resemble miniature cicadas were it not for the presence of the helmet. This structure appears to reside on top of the animal’s thorax, and extends dorsally, and in remarkably varied ways, to mimic thorns, animal … Continue reading

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