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Dynamical Screening of - Resonant Scattering and Thermal Nuclear Scattering Rate in a Plasma
Xiaojun Yao, Thomas Mehen, Berndt Müller
We use effective field theory and thermal field theory to study the dynamical screening effect in the QED plasma on the - scattering at the Be resonance. Dynamical screen…
An Effective Field Theory Approach to the Stabilization of Be in a QED Plasma
Xiaojun Yao, Thomas Mehen, Berndt Müller
We use effective field theory to study the - resonant scattering in a finite-temperature QED plasma. The static plasma screening effect causes the resonance sta…
Range Corrections to Doublet S-Wave Neutron-Deuteron Scattering
H. -W. Hammer, Thomas Mehen
We calculate the range corrections to S-wave neutron-deuteron scattering in the doublet channel (S=1/2) to first order in r/a where a is the scattering length and r the effective r…
A renormalized equation for the three-body system with short-range interactions
H. -W. Hammer, Thomas Mehen
We study the three-body system with short-range interactions characterized by an unnaturally large two-body scattering length. We show that the off-shell scattering amplitude is cu…
NNLO Corrections to Nucleon-Nucleon Scattering and Perturbative Pions
Sean Fleming, Thomas Mehen, Iain W. Stewart
The 1S0, 3S1, and 3D1 nucleon-nucleon scattering phase shifts are calculated at next-to-next-to-leading order (NNLO) in an effective field theory. Predictions for the 1P1, 3P0, 3P1…
Nucleon-Nucleon Effective Field Theory at NNLO: Radiation Pions and 1S0 Phase Shift
Thomas Mehen, Iain W. Stewart
Low energy phenomena involving two nucleons can be successfully described using effective field theory. Because of the relatively large expansion parameter, it is only at next-to-n…