571 citations · 1k across the 7 of their papers we have counts for
7 papers
Finite volume corrections to the binding energy of the X(3872)
M. Jansen, H. -W. Hammer, Yu Jia
The quark mass dependence of hadrons is an important input for lattice calculations. We investigate the light quark mass dependence of the binding energy of the X(3872) in a finite…
Efimov States in a Bose-Einstein Condensate near a Feshbach Resonance
Eric Braaten, H. -W. Hammer, M. Kusunoki
Recent experiments with Bose-Einstein condensates of 85Rb atoms near a Feshbach resonance have produced evidence for a condensate of diatomic molecules coexisting with the atom con…
Universality in the Three-Body Problem for 4He Atoms
Eric Braaten, H. -W. Hammer
The two-body scattering length a for 4He atoms is much larger than their effective range r_s. As a consequence, low-energy few-body observables have universal characteristics that…
Three-body recombination into deep bound states in a Bose gas with large scattering length
Eric Braaten, H. -W. Hammer
An effective field theory for the three-body system with large scattering length a is applied to three-body recombination into deep bound states in a Bose gas. The recombination co…
Field Redefinitions at Finite Density
R. J. Furnstahl, H. -W. Hammer, Negussie Tirfessa
The apparent dependence of nuclear matter observables on off-shell properties of the two-nucleon potential is re-examined in the context of the effective field theory (EFT) approac…
Effective Field Theory for Dilute Fermi Systems
H. -W. Hammer, R. J. Furnstahl
The virtues of an effective field theory (EFT) approach to many-body problems are illustrated by deriving the expansion for the energy of an homogeneous, interacting Fermi gas at l…
Renormalization of the Three-Body System with Short-Range Interactions
P. F. Bedaque, H. -W. Hammer, U. van Kolck
We discuss renormalization of the non-relativistic three-body problem with short-range forces. The problem becomes non-perturbative at momenta of the order of the inverse of the tw…