CP-odd nucleon potential

CP-odd nucleon potential.

On the CP - odd Nucleon Potential

The CP-odd nucleon potential for different models of CP violation in the one meson exchange approximation is studied. It is shown that the main contribution is due to the π-meson exchange which leads to a simple one parameter CP-odd nucleon potential.

Axion Potential, Topological Defects and CP-odd Bubbles in QCD

It follows on general grounds that the θ dependence in QCD is more complicated than suggested by the large Nc approach or instanton arguments. Generically, the vacuum energy Evac(θ) is a multi-valued function of θ admitting the existence of metastable states. We discuss decays of such metastable vacua in the theory with and without the axion, and point out the potential relevance of this and re...

The Cp-odd Nucleon Interaction and the Value of T-violation in Nuclei

The relations between the value of Tand P-violating correlations in neutron scattering and different models of CP violation are discussed. It is shown that a specific structure of CP-odd nucleon interactions gives the possibility to obtain the essential information about CP-odd interaction at the quarkgluon level from nuclear experimental data. The up-to-date estimations for CP-violating nucleo...

CP-odd Higgs in NMSSM

We study the sensitivity of rare decay π → e+e− to the light CP-odd Higgs A01 in the NMSSM. It is shown that the 3.3σ discrepancy between theoretical prediction and the recent KTeV measurement of B(π0 → e+e−) can be resolved with two narrow bands of NMSSM parameter space. For mA0 1 = 214.3 MeV, i.e., A01 as the state in Σ + → pμ+μ− decay found by HyperCP Collaboration, π → e+e− constrains |Xd| ...