Physics community afire with rumors of Higgs boson discovery

June 21, 2012 | Source: Wired Science
A disk full of silicon sensors that sits as an endcap on ATLAS

A disk full of silicon sensors that sits as an endcap on ATLAS, one of the LHC experiments searching for the Higgs boson (credit: Peter Ginter/ATLAS collaboration/CERN)

One of the biggest debuts in the science world could happen in a matter of weeks: the Higgs boson may finally, really have been discovered

Ever since tantalizing hints of the Higgs turned up in December at the Large Hadron Collider, scientists there have been busily analyzing the results of their energetic particle collisions to further refine their search.

The possible news has a number of physics bloggers speculating that LHC scientists will announce the discovery of the Higgs during the International Conference on High Energy Physics, which takes place in Melbourne, Australia, July 4 to 11.

“There’s something there which looks like a Higgs is supposed to look,” wrote mathematician Peter Woit on his blog, Not Even Wrong.

In the rigorous world of high-energy physics, researchers wait to see a 5-sigma signal, which has only a 0.000028 percent probability of happening by chance, before claiming a “discovery.”

The latest Higgs rumors suggest nearly-there 4-sigma signals are turning up at both of the two separate LHC experiments that are hunting for the particle. As physicist Philip Gibbs points out on his blog, Vixra log, if each experiment is seeing a 4-sigma signal, then this is almost definitely the long-sought particle. Combining the two 4-sigma results should be enough to clear that 5-sigma hurdle.

The Higgs boson is the final piece of the Standard Model — a framework developed in the late 20th century that describes the interactions of all known subatomic particles and forces.