It’s been a couple of months since scientists first reported the possibility of neutrinos traveling faster than light, a finding that if upheld would turn fundamental physics on its head.
There’s been a lot of speculation about the possibility since then, but a majority of physicists seem to have dismissed it. However, there’s also been some work done to actually confirm or deny the result.
For this repeated version of the experiment they changed the time structure of the beam from CERN, and in doing so addressed one of the possible sources of error in the original measurement, Rice University physicist Paul Padley told me.
“So this result is not going away easily and we are going to have to see what other experiments measure,” he said.
Yet another research group, the ICARUS experiment, has also just published results that attempted to confirm the original results by observing the energy spectrum of neutrinos to find radiation thought to be associated from superluminal travel. They did not find any.