Danyi Zhang

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LHC search narrows hiding places for quantum black holes

As of September 2026: Part of the CMS search team that built the machine-learning analysis

The Large Hadron Collider's most thorough search for microscopic black holes came up empty. That absence is a result: it rules out quantum black holes up to about 12 TeV (tera-electron volts) and, with them, most theories of extra spatial dimensions.

Updated Sep 23

Notable Quotes

It's not a dead-end. The result is an exclusion limit, which is a real, publishable statement: 'If this thing existed with these properties, we'd have seen it. We didn't, so we can rule it out here.'

from LHC search narrows hiding places for quantum black holes · Updated Sep 23

Theories don't predict one exact answer. They predict a whole range of places a particle could be hiding. Each search clears out part of that range and says 'not here.'

from LHC search narrows hiding places for quantum black holes · Updated Sep 23