Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: Physicist
Point of scientific accuracy: the Higgs mechanism may explain why quarks and leptons have mass.

Forgive a humble engineer for interrupting when physicists are speaking about the secrets of the universe, but something about your statement struck me as strange.

I am used to thinking about mass (gravitational or inertial) as being a fundamental property of things, not to be explained so much as described or measured. The concept of mass would seem to be more basic than the Higgs mechanism; how, then, can the Higgs mechanism explain why things have mass?

61 posted on 12/06/2001 9:15:29 AM PST by Logophile
[ Post Reply | Private Reply | To 57 | View Replies ]


To: Logophile
The concept of mass would seem to be more basic than the Higgs mechanism; how, then, can the Higgs mechanism explain why things have mass?

Would you agree that degrees of freedom are more fundamental than properties? The Higgs mechanism works on a mathematical level by making an extra degree of freedom available to the elementary particles, and this degree of freedom manifests itself as mass. (There are also extra degrees of freedom left over known as Goldstone bosons; the Higgs particle itself is an example of a Goldstone boson.)

The physical interpretation of that math would go like this: the "massless" elementary particles are coupled to the Higgs field, which "dresses" the particles in a cloak of virtual Higgs particles, and it is this cloak that plays the role of mass. The stronger the coupling, the heavier the cloak.

62 posted on 12/06/2001 9:37:20 AM PST by Physicist
[ Post Reply | Private Reply | To 61 | View Replies ]

To: Logophile
"how, then, can the Higgs mechanism explain why things have mass?"

You might want to look at the site, Higgs Revealed. It has several accounts written in response to a challenge to explain the Higgs boson on 1 page.

63 posted on 12/06/2001 9:47:32 AM PST by OBAFGKM
[ Post Reply | Private Reply | To 61 | View Replies ]

To: Logophile
The concept of mass would seem to be more basic than the Higgs mechanism

If mass were basic, then would it be convertible into something else, such as energy? What they do is rotate their dimensional unit matrices until they become relatively simple; then one of the dimension units becomes mass. But there are other possibilities.

71 posted on 12/06/2001 1:34:51 PM PST by RightWhale
[ Post Reply | Private Reply | To 61 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson