SPEAKER:  Thomas Mehen - Duke University

TITLE:  Effective Field Theory for Charmed Meson Molecules

ABSTRACT: The X(3872) is an unconventional charmonium state which is
probably a molecular bound state of neutral charmed mesons.  If so,
properties of the X(3872) can be described by an effective field
theory (XEFT) for shallow bound states similar to those applied to
two- and three-nucleon systems. For some properties of the X(3872),
XEFT makes parameter-free predictions at leading order and allows
systematic computation of effective range corrections and other higher
order effects. XEFT can also be used to analyze processes such as
decays to charmonium which are sensitive to short-distance aspects of
the X(3872). In this talk, I will review calculations that have been
done using XEFT and discuss their implications for the interpretation
of X(3872).