X(3872) in Effective Field Theory

Abstract

If the X(3872) resonance is a shallow boundstate of a the charm mesons $D^0{\bar{D}}^{\ast 0}$ and $D^{\ast 0}{\bar{D}}^0$, it can be described by an effective theory of nonrelativistic D mesons coupled to nonrelativistic pions (X-EFT). In this talk, I give a brief overview of the X(3872), followed by a short review of X-EFT. I end my talk with results from calculations of the next-to-leading-order correction to the partial decay width $\Gamma [X\to D^0{\bar{D}}^0{\pi }^0]$, and the decay of X(3872) to P-wave quarkonia.

Comments: Proceedings of a talk given at CIPANP 2009, San Diego, CA, May 26-31, 2009