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Universal Relations for Fermions with Large Scattering Length
Eric Braaten
The behavior of fermions with two spin states that interact with a large scattering length is constrained by universal relations that hold for any state of the system. These relati…
Estimating the Production Rate of Loosely-bound Hadronic Molecules using Event Generators
Pierre Artoisenet, Eric Braaten
We examine the use of hadronic event generators, such as Pythia or Herwig, to estimate the production rate of loosely-bound hadronic molecules, such as the deuteron and the X(3872)…
Scattering of an Ultrasoft Pion and the X(3872)
Eric Braaten, H. -W. Hammer, Thomas Mehen
The identification of the X(3872) as a loosely-bound charm-meson molecule allows it to be described by an effective field theory, called XEFT, for the D^* Dbar, D Dbar^* and D Dbar…
Using Line Shapes to Discriminate between Binding Mechanisms for the X(3872)
Pierre Artoisenet, Eric Braaten, Daekyoung Kang
We construct line shapes for the X(3872) that generalize the Flatte and zero-range line shapes that have been considered previously. These line shapes are associated with scatterin…
Short-Time Operator Product Expansion for rf Spectroscopy of a Strongly-interacting Fermi Gas
Eric Braaten, Daekyoung Kang, Lucas Platter
Universal relations that hold for any state provide powerful constraints on systems consisting of fermions with two spin states interacting with a large scattering length. In radio…