The Old and the New of Parity-violating Two-pion-exchange Nn Potential
نویسنده
چکیده
Effective field theory (EFT) approach, which shed new light on the methodology of nuclear physics, was used to reformulate the parity-violating (PV) nucleon-nucleon (NN) interaction recently,1 and the potential has been applied to a few two-nucleon problems.2,3 The PV two-pion-exchange (TPE) contribution to physical observables turned out to be non-negligible, but was not so significant as the TPE in the strong NN interaction. On the other hand, a PV NN contact term parametrized by a low-energy constant (LEC), which is presumed to subsume the heavy degrees of freedom and higher-order corrections, is comparable to the PV TPE contribution.
منابع مشابه
Parity-violating two-pion exchange nucleon-nucleon interaction
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تاریخ انتشار 2008