In the last years, the simple quark model picture of hadrons has been severely put into question by a cornucopia of experiments that show signals of so-called "exotic hadrons". At present, the nature of these states is not understood. The aim of this program is to sharpen the theoretical approaches to describe these states and pin down pertinent experimental signatures to differentiate between various options. Key issues of this program are:

• Charmonia and exotica (decays, transitions, ...)
• Theory of multiquark states
• Theory of hadronic molecules
• Hadron resonances in Lattice QCD

The homepage of the program can be found here.

The Bethe-Forum "Lecture Series on Mathematical String Theory" from July 2nd to July 13th is a school on recent topics in Mathematical String Theory. It is intended as a preparation to the String-Math 2012 for graduate students and researchers alike. The aim is to introduce current research topics in the field to both mathematicians and theoretical physicists and to bring together the respective physics and mathematics communities.
The homepage of the program can be found here.

The 4th Bethe Center workshop is part of a three weeks program on String Theory and Unification. The workshop will take place from October 1st to October 5th at the Physikzentrum Bad Honnef.
The homepage of the workshop can be found here.

The Bethe Forum on Unification and String Theory is a three week program focusing on

• Global Model Building with a bias towards the Heterotic String
• Local Model Building focusing on constructions in the context of type IIB/F-theory

The workshop takes place from September 24th to October 12th. In the second week, there will be the 4th Bethe Center workshop on Unification
and String Theory at the Physikzentrum Bad Honnef. The rest of the workshop will be held at the bctp.
The homepage of the program can be found here.here.