### Gerald Miller

University of Washington
###
Confinement and the Factorization of Elastic Nuclear Electromagnetic Form Factors -Where did the time go?

This talk concerns the treatment of the non-zero size of the nucleon in
the computation of the electromagnetic form factor of a nucleus. This is
timely because JLab plans to measure the triton ^{3}H form factor, and
the size of the nucleus is not much larger than the size of the proton.
The time-honored treatment is to take the nuclear form factor to be the
product of the form factor for point nucleons times the nucleon form
factor. This factorized form was derived in the 1950's using classical,
non-relativistic reasoning. A simple relativistic model (generalization
of the φ^{3} model) is used to test the validity of the product form.
In general, the product form is not obtained- the proton form factor is
modified by being in the nucleus and the exact result is not a product.
However, the factorized form is obtained under some conditions.

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