How can there be an Anti-Quark? I don't believe it!
Posted on 07/18/2015 3:40:12 PM PDT by BenLurkin
Because perturbation theory doesn’t work, it is very hard to predict the consequences of the strong force. One thing we do know is that the binding energy of the strong force which holds the quarks together inside them is responsible for almost all of the mass of protons and neutrons, and hence almost all of the mass of you. Calculations on supercomputers (such as the DiRAC facility in the UK) use “lattice” methods to make calculations when perturbation theory doesn’t work. These involve approximating the space-time continuum by a lattice of discrete points and events; they are now able to make some pretty firm predictions, although calculating the details of pentaquarks remains in the future - the experiment is ahead here.
All the hadrons known until recently consist of either three quarks, or one quark and one antiquark. The reasons for this are nicely explained in a series of articles by Ben Still here (using Lego!). Particles made of two quarks and two antiquarks (known as tetraquarks) have been seen by the Belle experiment and by LHCb in the last few years, but this one - four quarks and one antiquark - is a new kind of beast.
We would like to know is whether pentaquarks are made up of all four quarks and the antiquark clumped together, or whether they consist of a quark-antiquark pair more loosely bound to the other three quarks, as shown in the illustration below.
(Excerpt) Read more at theguardian.com ...
An extra five minute’s sleep
The fortune teller at the circus tried to sell me one. I’m still not interested.
Trump is a strong force. He’s got his quarks, but he sure is causing perturbation of the rats and GOPe.
Trump is a strong force. He’s got his quarks, but he sure is causing perturbation of the rats and GOPe.
Does it taste like chicken?
I thought Quark was a bar tender on the Star Trek series DS9
It would mean to me, at lower than the molecule level, how any coffee company is able to make ‘pumpkin pie flavoed coffee’, without any pumpkin pie in it at all.
I have trouble drinking 5 quarks of beer.
Dow Chemical made a pie a few decades ago that had no natural ingredients in it.
How can there be an Anti-Quark? I don't believe it!
Isn’t that a former Indian themed summer camp than now helps inter city nerdy kids learn to code and make websites?
I give up.
I’m never any good at these guessing games.
“Pentaquark”?
The latest sedan from Dodge?
It would still mean God in the mix.
Brilliant. I had missed this. thanks for the post.
“When protons and neutrons merge to form atoms, they relinquish some of their mass. The missing mass (or mass defect) is converted to energy, which, in overly simplistic terms, is what’s being used to hold the atomic nucleus together. It’s called binding energy. To split a nucleus into its constituent particles would therefore require an ABSORPTION of energy; it would not release it.
However, let’s assume that you could convert all of the atoms in a human body to energy. The amount of energy stored in a given amount of mass is given by the formula E = mc^2.
A mass of 1 kg therefore releases:
E = (1 kg)(3.00e8 m/s)^2
E = 9.0e16 J
That’s equivalent to about 21.5 megatons of TNT, or the approximate explosive yield of a large hydrogen bomb.
And that’s just one kilogram (2.2 lbs).
So the explosive yield of any mass, if it is converted entirely to energy, is 21.5 megatons per kilogram (9.77 megatons per pound).”
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In other words if you weigh between, say, 150 and 200 pounds, you are carrying around between (68 x 21.5) and (91 x 21.5) megatons of potential nuclear energy, the equivalent of 68 to 91 large nuclear bombs, at least according to the piece above. So PLEASE be careful not to burp or bump into someone!!-ETL
Kind of wild for an old guy like me. Thanks for posting.
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