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Re: subatomic scales



Zach,
I forget the value for the classical radius of the electron, but
you can probably do it from first principle knowing how much charge and
assuming a sphere. However, we know it is smaller than 10^-17 cm (I got
the sign right this time) in size from deep inelastic scattering
experiments. I do rememember though that the classical size is
ridiculously large.
As for the quark, it is assumed to be point-like (same as
electron) because we can see no size down to our highest reolsution
(10^-17 cm).


Sam Held


-----Original Message-----
From: Zach Wolff [mailto:zachary_wolff@YAHOO.COM]
Sent: Friday, November 13, 1998 3:28 PM
To: PHYS-L@LISTS.NAU.EDU
Subject: subatomic scales


What is the order of magnitude of the classical radius of the elecron?
Is there any value for the radius of a quark?

Zach




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