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First collisions at the LHC with unprecedented Energy! (Ask a particle physisicist)
RE: First collisions at the LHC with unprecedented Energy!
(August 11, 2015 at 3:01 pm)Alex K Wrote: If it's too much either I explained it badly or you're too ambitious Tongue
Come on! Post the questions! Smile


You have given me insight into the Dunning Kruger Syndrome.  I had always simplified this as, "Stupid people don't know they're stupid because... they're stupid." 
That was a wrong way to look at it.  Wikipedia says,
 
Quote:Dunning–Kruger effect is a cognitive bias wherein relatively unskilled individuals suffer from illusory superiority, mistakenly assessing their ability to be much higher than is accurate....Their research also suggests that conversely, highly skilled individuals may underestimate their relative competence, erroneously assuming that tasks that are easy for them also are easy for others.
You are clearly in the highly skilled group.

More questions?
Well,  I'll risk it.

Over the weekend, I (had) read (to me (MP3s)) R.P. Feynman's collected short works, The Pleasure of Finding Things Out in which he showed himself similarly self deprecating.  For example, and paraphrasing, in his acceptance speech, he said something like, "Why are you giving me the Nobel, I just cleaned up the existing model by shoveling the infinities under the carpet."

The book was not very clear in describing the existing model and how Feynman's quantum electrodynamics fixed it.
Could you clarify?  Imagine you're explaining this to your dog, or hamster.  Short, simple words are best.

Previously, you answered a question I had about the pentaquark recently discovered (created?)
Alex K Wrote:BUT: the QCD interaction between the gluon and quark fields unfortunately becomes so strong at these low energies that talking about individual gluons doing this or that makes no sense any more.

The question I had was in interpreting your answer.   In my mind, a low energy condition should make it easier, not harder to separate and identify individual particles.
This got me into Wikipedia and into QCD -> area rule and gluon containment -> lots more things I didn't understand -> I give up!
I think my education is quite a few decades obsoleted with respect to gluons and quarks.
I do remember the wave equation, the square of which, at a specific place, is a probability density for finding an electron(?) there.
Are the "quark and gluon fields" superimposed on this? separate? components of?

More recently you wrote:
Quote:It doesn't look like it. In quantum field theory, there is a famous three line proof that experiments separated by more than light speed cannot affect each other measurably.
I understand experiments being separated in space or time.
But separated by a speed?  Is that that Minkowski spacetime thing again?
Is this the same thing as not being in each other's light cones?  I sort of get that.

Thank you for your continued patience.
So how, exactly, does God know that She's NOT a brain in a vat? Huh
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Messages In This Thread
Wimpy little toy. - by Pyrrho - May 21, 2015 at 1:25 pm
Please explain the universe. - by Pyrrho - May 30, 2015 at 2:09 pm
RE: - (Ask a particle physisicist) - by Pyrrho - May 30, 2015 at 2:38 pm
Pictures! - by Pyrrho - May 30, 2015 at 7:52 pm
... - by Pyrrho - May 31, 2015 at 7:43 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 1, 2015 at 11:55 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 1, 2015 at 10:32 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 2, 2015 at 9:44 am
RE: - (Ask a particle physisicist) - by Pyrrho - June 2, 2015 at 11:35 am
RE: - (Ask a particle physisicist) - by Pyrrho - June 2, 2015 at 4:18 pm
Cat Porn - by Pyrrho - June 2, 2015 at 5:40 pm
RE: First collisions at the LHC - by JuliaL - June 4, 2015 at 12:58 pm
The Rubáiyát of Omar Khayyám - by Pyrrho - June 4, 2015 at 1:08 pm
The Rubáiyát & other stuff - by Pyrrho - June 5, 2015 at 1:34 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 6, 2015 at 1:48 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 6, 2015 at 10:31 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 7, 2015 at 12:49 pm
RE: - (Ask a metaphysisicist) - by Pyrrho - June 8, 2015 at 3:19 pm
RE: - by Iroscato - June 8, 2015 at 7:21 am
RE: - (Ask a metaphysisicist) - by Pyrrho - June 8, 2015 at 5:31 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 9, 2015 at 4:12 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 9, 2015 at 5:40 pm
RE: Uncle K - by Pyrrho - June 10, 2015 at 12:40 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 9, 2015 at 8:54 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 9, 2015 at 10:53 pm
RE: - (Ask a particle physisicist) - by Pyrrho - June 10, 2015 at 2:11 pm
RE: (Ask a particle physisicist) - by Pyrrho - September 2, 2015 at 1:11 pm
RE: ... (Ask a particle physisicist) - by Pyrrho - September 2, 2015 at 4:05 pm
RE: First collisions at the LHC with unprecedented Energy! - by JuliaL - September 2, 2015 at 10:33 pm

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