## Searching for exotic hadronic states with charm quarks

Who: Mike Peardon (Trinity College)
When: Monday, October 6, 2014 at 14:15
Where: The CP³ meeting room

The simplest composite model of hadrons describes them as a bound state of a quark and an anti-quark (a meson) or as three quarks (a baryon). QCD may allow other colourless combinations of these constituents to form bound states, such as the hybrid mesons or tetraquarks. The recent discoveries of many new resonances above the open-charm threshold that are not easy to fit into a simple quark model has stimulated interest in these more exotic forms of matter. I will describe the efforts of the Hadron Spectrum Collaboration to shed some light on the spectrum of excited states in charmonium and charmed mesons using lattice QCD calculations.

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Slides from the talk