Further comments on a vanishing singlet axial vector charge
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Further comments on a vanishing singlet axial vector charge

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Further comments on a vanishing singlet axial vector charge

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Cheng, Ta-Pei; Kochelev, Nikolai; Vento Torres, Vicente
Aquest document és un/a article, creat/da en: 1999
The recent suggestion of a vanishing flavor-singlet axial-charge of nucleon due to a nontrivial vacuum structure is further amplified. A perturbative QCD discussion, applicable for the heavy quark contributions, relates it to the physics of the decoupling theorem. It is also shown that leads to a negative η′-meson-quark coupling, which has been found to be compatible with the chiral quark model phenomenology.

    Cheng, Ta-Pei Kochelev, Nikolai Vento Torres, Vicente 1999 Further comments on a vanishing singlet axial vector charge Modern Physics Letters A 14 3 205 209
http://dx.doi.org/10.1142/S0217732399000249
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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