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LHCb Confirms Existence of Exotic Hadrons
An anonymous reader sends this news from CERN:
"The Large Hadron Collider beauty (LHCb) collaboration today announced results that confirm the existence of exotic hadrons – a type of matter that cannot be classified within the traditional quark model. Hadrons are subatomic particles that can take part in the strong interaction – the force that binds protons inside the nuclei of atoms. Physicists have theorized since the 1960s, and ample experimental evidence since has confirmed, that hadrons are made up of quarks and antiquarks that determine their properties. A subset of hadrons, called mesons, is formed from quark-antiquark pairs, while the rest – baryons – are made up of three quarks. ... The Belle Collaboration reported the first evidence for the Z(4430) in 2008. They found a tantalizing peak in the mass distribution of particles that result from the decays of B mesons. Belle later confirmed the existence of the Z(4430) with a significance of 5.2 sigma on the scale that particle physicists use to describe the certainty of a result. LHCb reports a more detailed measurement of the Z(4430) that confirms that it is unambiguously a particle, and a long-sought exotic hadron at that. They analyzed more than 25,000 decays of B mesons selected from data from 180 trillion (180x10^12) proton-proton collisions in the Large Hadron Collider."
Reminded me of when I was 18 and got one every day without thinking.
...what are the ten radical isotopes?
Exotic hard ons can be found here.
The "meson shear" weapon (for all practical intents & purposes, a disintegrator).
She said it wasn't all that large.
Not to *me* she didn't.
If it's not made up of quarks, what evidence so they have that it actually is a Hadron at all? They just stated that the definition of a Hadron is a particle made up of quarks.
Says Mr. Pinkiedick.
It's not a quark-antiquark pair. It's not three quarks of different colors. So what is it? Four quarks? Something else?
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From the original publication ( http://lhcb-public.web.cern.ch/lhcb-public/ ):
The minimal quark content of the Z(4430) state is: charm + anti-charm + down + anti-up.
It is therefore a four quark state or a two-quark plus two-antiquark state.
Can someone who knows more about this subject explain what if any the implications this result has for the Standard Model?
I'm not sure which is funnier.
If telephones are outlawed, then only outlaws will have telephones.
Lisi's "An Exceptionally Simple Theory of Everything" predicts particles. Is this one of those particles that it predicts?
http://en.wikipedia.org/wiki/A...
18 comments in, and 17 of them are just stupid stuff about hard-ons. Either Slashdot has been taken over by 12 year old boys, or they're all just still boys trapped in the bodies of men.
Belle later confirmed the existence of the Z(4430) with a significance of 5.2 sigma on the scale that particle physicists use to describe the certainty of a result.
I believe that "scale" is called the normal distribution; that is to say, the odds of getting that result as a fluke are the same as finding a point 5.2 standard deviations away from the mean of the normal curve. If so, everything in that sentence after "5.2 sigma" can be left out.
Finding God in a Dog
Master Mark will have a field day!
Finding God in a Dog
Lisi's theory predicts fields and the kind of particles known as bosons, it's a field theory that hasn't even been refined enough to include quantization. It doesn't predict mass of particles either.
Says Mr. Pinkiedick.
We just say Dinkie.
A great euphemism for "I have the weirdest bonre"
They are frantically searching for the means to combat God when he returns.
I'd collide-her.
Did anyone else get sick of not misreading posts about misreading the title as exotic hardons?
Hardons should not become exotic to you until your forties, and even then because ypu take lots of high blood pressure or other cardiovascular medicine.
(-1: Post disagrees with my already-settled worldview) is not a valid mod option.
Actually, I misread it as "erotic hardons" .
-- Julien Pierre http://www.madbrain.com/blog
I think I'm the only one who didn't to be honest.
Since I could no longer comprehend the technical nature of the discovery, what is the consequence of this discovery? Will existing theories be changed (or validated)? Any complications to other theories?
I hope someone with more knowledge in the subject matter will be able to share.
Live your life each day as if it was your last.
I swear I had to read that three times before I realized that the article title wasn't "LHCb Confirms Existence of Exotic Hardons"
"erotic hardons"
because she's big and loose as a gunny sack
Ever since the move to become more social and hip! Well, they got part of what they wanted, drove most of the actual nerds away. I have been here twice in six months, only because I miss the old /., but after reading a few threads I just leave again.
Hmmm, masse accounts of literary Freudian Slip
Much ado about the thought of erections....
Verrrrry interesting.........
*Repent!Quit Your Job!Slack Off!The World Ends Tomorrow and You May Die!
Yeah, me too... and uhm... when did that change for you? I'm in mid-40s and that still happens for me though I wouldn't say without thinking... there's almost always something I'm thinking about at the time.
... er, I thought it was a typo that was to read, "LHCb Confirms Existence of Exotic Hard on's"
I first assumed that it was Ingress backstory.
sub f{($f)=@_;print"$f(q{$f});";}f(q{sub f{($f)=@_;print"$f(q{$f});";}f});