Measurement of electron’s ‘shape’ dims hopes for discovery of new particles

Thread Starter

nsaspook

Joined Aug 27, 2009
16,250
https://www.science.org/content/art...on-s-shape-dims-hopes-discovery-new-particles

Ultimately, the team found no evidence that the electron has an electric dipole moment. The measurement lowered the limit on the moment’s strength by a factor of 2.4. That bound implies a lower bound on the mass of any not-yet-observed particles that would violate time-reversal invariance, as lighter particles would exert a bigger effect. That limit is about 3 or 4 teraelectron volts, Cornell says, about a factor of 2 heavier than the LHC can produce.
 

Thread Starter

nsaspook

Joined Aug 27, 2009
16,250
Of course others will say they just need to build a bigger collider.
The LHC was built because there was a prediction (from a string of successful predictions) from the standard model that Higgs would be found exactly where the found it. These speculative theories of fundamental particle symmetry breaking are 'fringe' at the best.
 

ElectricSpidey

Joined Dec 2, 2017
3,312
" The finding, reported today in Science, confirms to greater precision than ever before that the distribution of electric charge in the electron is essentially round. "

Ahhh...vindication for all of those nutbags that visualize the electron as a little round ball.

:p
 

Thread Starter

nsaspook

Joined Aug 27, 2009
16,250
" The finding, reported today in Science, confirms to greater precision than ever before that the distribution of electric charge in the electron is essentially round. "

Ahhh...vindication for all of those nutbags that visualize the electron as a little round ball.

:p
Yes, it's a good approximation. It's called a point charge for a reason.
https://scienceworld.wolfram.com/physics/PointCharge.html
A point charge is a hypothetical charge located at a single point in space. While an electron can for many purposes be considered a point charge, its size can be characterized by length scale known as the electron radius.
 

MrAl

Joined Jun 17, 2014
13,667
" The finding, reported today in Science, confirms to greater precision than ever before that the distribution of electric charge in the electron is essentially round. "

Ahhh...vindication for all of those nutbags that visualize the electron as a little round ball.

:p
Hi,

That's interesting i was hoping it was round (ha ha ha).

Seriously though I can't see how it could be anything but that unless there was something inside that was not uniform.
Charge distributes in a very uniform way due to the way a particle influences other particles of the same type and of other types, as long as the medium is also uniform.
 

shortbus

Joined Sep 30, 2009
10,050
You're so vain. I wasn't wasting time pointing out that technical discussion to you. It was for others that might be elucidated.


So my statement was meaning that you again gave information with YOUR spin on it. Whether it's right or wrong. People need to find out things for themselves, and I pointed him to a place to find things to make up his own mind.

Even though you don't seem to agree with her theories, she has a PHD and held many high level jobs in the field. How many PHD's do you have in this field?

"In 2004, she completed a doctorate in theoretical physics ....
Hossenfelder remained in Germany until 2004 as a postdoctoral researcher at the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt.[3] She was subsequently employed as a postdoctoral research fellow at the University of Arizona, Tucson, University of California, Santa Barbara, and later at the Perimeter Institute, Canada. In 2009, she became an assistant professor at the Nordic Institute for Theoretical Physics in Sweden.[6] Between 2015 and 2022, she was employed at the Frankfurt Institute for Advanced Studies"
From - https://en.wikipedia.org/wiki/Sabine_Hossenfelder
 
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