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Open Effective Field Theories from Highly Inelastic Reactions
Eric Braaten, Hans-Werner Hammer, G. Peter Lepage
The loss of particles due to highly inelastic reactions has previously been taken into account in effective field theories for low-energy particles by adding local anti-Hermitian t…
On the pi pi continuum in the nucleon form factors and the proton radius puzzle
M. Hoferichter, B. Kubis, J. Ruiz de Elvira +2
We present an improved determination of the continuum contribution to the isovector spectral functions of the nucleon electromagnetic form factors. Our analysis includes the m…
Open Effective Field Theories from Deeply Inelastic Reactions
Eric Braaten, H. -W. Hammer, G. Peter Lepage
Effective field theories have often been applied to systems with deeply inelastic reactions that produce particles with large momenta outside the domain of validity of the effectiv…