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Registered Member #1792
Joined: Fri Oct 31 2008, 08:12PM
Location: University of California
Posts: 527
Evidence has been found for the Higgs Boson, but physicists are rightly conservative before claiming a discovery. To quote the most relevant snippet of
BBC wrote ... The scientists see hints of the boson in roughly the same part of the "search region" as the LHC - between the masses of 115 and 135 Gigaelectronvolts (GeV).
The signal is seen at the 2.9-sigma level of certainty, which means there is roughly a one in 1,000 chance that the result is attributable to some statistical quirk in the data.
In particle physics, three sigma counts as "evidence". Claiming a discovery requires a statistical certainty of five sigma - which denotes a one in a million chance that any given result is a fluke.
Sniffing success Fermilab's Rob Roser, co-spokesperson for the Tevatron's CDF experiment, said: "Our data strongly point toward the existence of the Higgs boson, but it will take results from the experiments at the Large Hadron Collider in Europe to establish a discovery."
Registered Member #65
Joined: Thu Feb 09 2006, 06:43AM
Location:
Posts: 1155
@Daedronus There are some who cling to quantum-vacuum theories as the only possible solution. However, people will certainly discover "Focus bias" generates expected results...
Maxwell will likely have the last laugh somehow...
They are 99.99% sure they've found it, AKA they are 100% sure they've found it, but if they don't put room for error and they don't find it, they'll be sued. :P
... not Russel! Registered Member #1
Joined: Thu Jan 26 2006, 12:18AM
Location: Tempe, Arizona
Posts: 1052
HighVoltageChick wrote ...
They are 99.99% sure they've found it, AKA they are 100% sure they've found it, but if they don't put room for error and they don't find it, they'll be sued. :P
Actually, the certainty right now is three sigma, about 99.73%. The standard for making a claim of particle discovery is five sigma, or about 99.9999%. The results are encouraging, and they're very likely right, but it needs more data and more verification before the Higgs can be claimed as "discovered."
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
"The CMS team claimed they had seen a "bump" in their data corresponding to a particle weighing in at 125.3 gigaelectronvolts (GeV) - about 133 times heavier than the protons that lie at the heart of every atom.
They claimed that by combining two data sets, they had attained a confidence level just at the "five-sigma" point - about a one-in-3.5 million chance that the signal they see would appear if there were no Higgs particle.
However, a full combination of the CMS data brings that number just back to 4.9 sigma - a one-in-two million chance."
Registered Member #190
Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
Maybe one of you can help me understand the particle better. How is the Higgs boson evidence for the Higgs field? Is it the field that confers mass or the boson? If it is the latter, how is it able to do this if it exists for such a brief period in the collider?
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Yeah, I am pretty sure 4.9 sigma is essentially found. So who was it that won, so I know where to send this box of bits? The established mass appears to be 125.3 GeV so whoever's bet was closest wins.
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God Particle
