[Theory-seminars] Reminder: Theory Seminar 1pm TODAY (Oct 4th)

[Christopher Thomas]

Dear all,

Just a reminder that we have a Theory Seminar at 1pm THIS AFTERNOON (Oct 
4th) in L104.  There's also a Cake Seminar on Wednesday.  Details below:

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Monday, Oct 4th
1pm (coffee at 12:45)
Room L104

*Transverse Charge Densities*

Gerald Miller
University of Washington

Electromagnetic form factors have long been used to probe the underlying
charge and magnetization densities of hadrons and nuclei.
However,traditional three-dimensional Fourier transform methods are not
applicable for systems with constituents that move relativistically. The
use of the transverse charge density is a new, rigorously defined way to
analyze electromagnetic form factors of hadrons. This talk will discuss
the following issues: what is a transverse charge density; how is one
extracted one from experiments; the existing results for the nucleon and
pion; what is the relationship with other observable quantities such as
the proton Zemach radius and the shape of the proton; and, future
prospects.


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Cake Seminar
Wednesday, Oct 6th
2pm
Room L104

*Electromagnetic three-nucleon form factors in the Covariant Spectator
Theory*

Alfred Stadler
University of Lisbon

I will give a short overview of the basic features of the Covariant
Spectator Theory and its application to the two- and three-nucleon
systems.  In this framework, pure one-boson-exchange models of the
two-nucleon interaction have been found to be very successful in
describing the two-nucleon data below the pion-production threshold. The
three-nucleon binding energy is predicted correctly without additional
three-nucleon forces. I will show first results for the electromagnetic
three-nucleon form factors, which represents an important test of the
Covariant Spectator Theory's ability to describe the structure of the
three-nucleon bound states.

Cake Sponsor: Franz Gross

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A complete list of upcoming theory seminars and talks from previous
seminars are available from:
http://www.jlab.org/~thomasc/seminars/


Christopher, Hiroyuki and Vadim
JLab Theory Seminar Organizers