"Perfect" Electron Roundness Bruises Supersymmetry
astroengine writes "New measurements of the electron have confirmed, to the smallest precision attainable, that it has a perfect roundness. This may sounds nice for the little electron, but to one of the big physics theories beyond the standard model, it's very bad news. 'We know the Standard Model does not encompass everything,' said physicist David DeMille, of Yale University and the ACME collaboration, in a press release. 'Like our LHC colleagues, we're trying to see something in the lab that's different from what the Standard Model predicts.' Should supersymmetrical particles exist, they should have a measurable effect on the electron's dipole moment. But as ACME's precise measurements show, the electron still has zero dipole moment (as predicted by the standard model) and is likely very close to being perfectly round. Unfortunately for the theory of supersymmetry, this is yet another blow."
Unfortunately for the theory of supersymmetry, this is yet another blow.
Ok, but why? Anyone care to explain this for me?
"ACME collaboration"?
Then just bang the electron on the head with an ACME anvil, and it will grow lumps.
Table-ized A.I.
If you measure it, an electron is perfectly round. The rest of the time it's kind of oval.
I have been on the edge of my seat waiting for something genuinely new. Something like when people were discovering that atoms were made up of even tinier bits. Or that quantum was not just a mathematical nicety but way cooler. Each of these fairly "academic" discoveries then opened up whole new trains of thought that led to lasers, solid state electronics, nuclear reactors, etc.
So what wonderful physics is hiding out there waiting to be discovered and open up a whole new world to us?
Personally my biggest recent letdown were the FTL neutrinos that turned out to be bogus. I was genuinely hoping that something cool revealing itself. But alas. My favorite today is that entanglement and wormholes might have some relationship. Minimally that will result in some cool sci-fi if not actual science.
Personally I don't mind if ultraspherical electrons shut down a bunch of pet theories. They didn't seem to be making much progress and thus the door has been opened to explore something new. Maybe there is some guy trying to get his doctorate showing that supersymmetry is a load of rubbish but hasn't been able to get much traction because the entire panel got their doctorates in supersymmetrical related ideas and in order to defend his thesis he has to first set fire to theirs.
Science is going to be really screwed when they discover frictionless planes also exist.
If it's spherical what's the size of that sphere?
Every time I see a news item about supersymmetry, it always seems to be disproving it. Seems like the only thing the hypothesis has going for it is the universe would make a lot more elegantly designed if it was true. It seems like mostly wishful thinking to me.
I'm trying to teach myself to set people on fire with my mind... Is it hot in here?
The Wikipedia article on supersymmetry did not really seem to help within the context of the electron smoothness issue.
Perfectly round. Isn't that the definition of super symmetry?
... of models involving perfectly spherical atoms, nanoparticles, cows, planets, stars, etc, there is something ironic about an electron being too round.
Once again, way over my head; but if the electron deviated from round as much as Earth, how would we measure that? If an electron had a mountain on it the size of Everest, that mountain would be so tiny, and if it had bumps that didn't really effect the charge distribution... I mean, I could go on and on. It's all so friggin' tiny. How would you measure it?
Aside from that, we were always told that the electron existed in "orbitals" and you could never really say where the electron is because it's all quantum and stuff. So. If you can't even say where it is, the whole idea of roundness seems like the least of your worries.
I think you may have taken a wrong turn on the front page.
I thought that, since it wasn't made up of sub-particles, an electron was a point particle. Since when does it have a defined size, let alone shape?
once one types 'perfect' the rest is also subject to adjective vs. fact. why not look at grandmother moon for example
How can anything have a shape that turns into an electromagnetic wave when you're not watching...
bickerdyke
A perfect sphere IS super-symmetrical so long as the cut goes through the center. Good thing I'm here to help out these scientist.
http://en.wikipedia.org/wiki/Supersymmetry
A whole lot of PhD dissertations, physics publications, and academic careers are on the line over this. String theory is the current favorite and loop quantum gravity the underdog. The direction of theoretical particle physics could be radically altered if the LHC doesn't find evidence of supersymmetry.
Why is Snark Required?
The Standard Model doesn't predict that the electron EDM is zero.
smallest precision attainable does not mean what you think it does. You meant highest precision attainable
you forgot Polan... ahem, the axis of evil. The related article cites coincidence as a possible interpretation, which seems a "Galileo" moment to me.
---- MISSING MISCELLANEOUS DATA SEGMENT --- [sigdash] trolololol
Electrons are point particles - modelled as zero-volume and massless. They might have no physical form. I am not surprised that our measures of them indicate perfect symmetry.
You know, it would be sufficient to really understand the electron.
/ Albert Einstein /
You're looking at it wrong.
you string theorists.
The Standard Model should be good for another 30 years! Bwahahahahahaaaaa!!!