Search for microscopic black hole signatures at the Large Hadron Collider
December 15th 2010
The CMS experiment at CERN’s Large Hadron Collider (LHC) has completed a search for microscopic black holes produced in high-energy proton-proton collisions. No evidence for their production was found and their production has been excluded up to a black hole mass of 3.5-4.5 TeV (1012 electron volts) in a variety of theoretical models.
http://cms.web.cern.ch/cms/News/2010...010/index.html
And a short comment on the blog Not Even Wrong:
http://www.math.columbia.edu/~woit/wordpress/?p=3333