Rumsfeld Hadrons

Abstract

Donald Rumsfeld, in attempting to excuse the inexcusable, once (in)famously said that ``there are things that we know we know; there are things that we know we don't know; and then there are things that we don't know that we don't know". Recent discoveries about hadrons with heavy flavours fall into those categories. It is of course the third category that is the most tantalising, but lessons from the first two may help resolve the third.

Talk at Flavor Physics Conference, Slovenia and PIC Annecy

References in corpus (1)

• Moriond QCD 2007 - Theory Summary

Cited by in corpus (3)

• The Exotic XYZ Charmonium-like Mesons
• X(2175) as a resonant state of the $\varphi K\bar{K}$ system
• Charm Physics: Hints for a Mature Description of Hadrons