Two parity violating asymmetries from $n p \to d γ$ in pionless effective field theories

We consider parity-violating observables from the processes $\vec n p\to d γ$ and $np \to d \overset {\circlearrowleft}γ$. We perform calculations using pionless effective field theory both with and without explicit dibaryon fields. After combining these results with ones we have already obtained on parity-violating asymmetries in $\vec NN$ scattering, experimental input would in principle allow the extraction of all five parameters occurring at leading order in the parity-violating Lagrangian.

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