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Decay pi(0)->gamma gamma to next to leading order in chiral perturbation theory
Decay of amplitude induced mixing pure state low energy
2014/12/20
The π0→γγ decay width is analyzed within the combined framework of chiral perturbation theory and the 1/Nc expansion up to O(p6) and O(p4×1/Nc) in the decay amplitude. The η′ is explicitly included in...
Next-to-leading order spin-orbit and spin(a)-spin(b) Hamiltonians for n gravitating spinning compact objects
post-Newtonian approximation binary and multiple stars celestial mechanics
2010/12/20
We derive the post-Newtonian next-to-leading order conservative spin-orbit and spin(a)-spin(b)
gravitational interaction Hamiltonians for arbitrary many compact objects. The spin-orbit Hamiltonian co...