Strong CP violation in an effective chiral Lagrangian approach
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Strong CP violation in an effective chiral Lagrangian approach

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Strong CP violation in an effective chiral Lagrangian approach

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Pich Zardoya, Antonio Perfil; Rafael, Eduardo de
Aquest document és un/a article, creat/da en: 1991
Possible long-distance effects like eta --> pi-pi and the electric dipole moment of the neutron (nEDM), which may originate in the strong CP-non-conserving sector of QCD, are re-examined in the light of an effective chiral lagrangian approach. Contrary to recent claims, we show that it is possible to obtain reliable estimates for these processes from chiral symmetry and low-energy phenomenology (modulo the size of the theta-vacuum angle, of course). We also discuss how an improvement of the presented estimate of the nEDM could be made, if necessary.

    Pich Zardoya, Antonio Rafael, Eduardo de 1991 Strong CP violation in an effective chiral Lagrangian approach Nuclear Physics B 367 1 313 333
http://dx.doi.org/10.1016/0550-3213(91)90019-T
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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