[Triumf-seminars] TRIUMF Theory Seminar today at 13:00

[TRIUMF Seminars]

Date/Time: Tue 2012-10-02 at 13:00

Location:  Theory Room         

Speaker:   Sebastian Koenig (U. Bonn)

Title:     Bound states in a box

Abstract: When a bound state is put in a finite volume, its mass (energy) is
shifted compared to the infinite-volume solution.  In the eighties,
Lüscher derived an explicit formula for the case of S-wave bound states
in a periodic cubic box.  In this talk, I will discuss the extension of
the formalism to bound states with higher orbital angular momentum.
Moreover, I will show how the boundary conditions are changed when one
considers bound states in moving frames and how this leads to
topological correction factors in the scattering of composite particles.
The results have applications to lattice calculations for various kinds
of systems.



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