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Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
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
HighVoltageChick, its not a matter of being sued, its a matter of scientific credibility. many of you dont remember the whole cold fusion disaster of the 80's...that kind of mistake can end careers.
'The results are preliminary but the 5 sigma signal at around 125 GeV we’re seeing is dramatic. This is indeed a new particle. We know it must be a boson and it’s the heaviest boson ever found,' said CMS experiment spokesperson Joe Incandela.
Registered Member #72
Joined: Thu Feb 09 2006, 08:29AM
Location: UK St. Albans
Posts: 1659
No, they haven't found *the* Higgs Boson, they've found *a* new boson, whose measured properties so far are not inconsistent with what they expect for the Higgs. They don't know its spin yet, it could be either 0 or 2. There are another bunch of characteristics, some of which the standard model predicts, some of which it doesn't, which have yet to be measured. Bear in mind, they didn't have a predicted mass for the Higgs, they just had to trawl through the entire mass range until something they hadn't seen before with the expected decay paths turned up.
Although the Higgs completes the Standard Model, we have known for decades that the SM is not complete, but a mere approximation of what is going on at the next level down (rather like classical to quantum, or Newton to relativity). It doesn't contain gravity for instance. A kindof glaring omission as it appears to only interact with mass, which is the province of the Higgs.
I'm not trying to rain on their parade, it's a huge acheivement. But remember that it's a "mopping-up" operation on a known incomplete part of physics. At least, that's how it looks now. What could be better than, as they refine their measurements of the remaining properties, one holds out and refuses to be equal to what the SM says it should be. "It's a Higgs Jim, but not as we know it!" An investigation of why could open the door to a new advance in theory. That's generally what happens as everybody feels smug as the theory appears to drop into place; everything's almost complete, just a few more t's to cross and i's to dot. Look what happened to the Victorians just as they were honing classical physics and hit the ultraviolet catastrophe.
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
Conundrum wrote ...
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.
-A
"One of the reasons for the caution at Cern is that while the new particle has so far behaved liked the elusive Higgs boson it is lighter than expected.
This opens up the possibility of there being more than one Higgs boson and could lead to a new understanding of dark matter, the mysterious substance thought to make up a quarter of the universe."
Hang on a minute, there could be more Higgs bosons to come yet.....
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God Particle
