A six-quark dressed-bag description of np -> d gamma radiative captureстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The radiative capture process np --> dgamma is considered within the framework of a recently developed six-quark dressed-bag model for the nucleon-nucleon interaction. The calculations presented here include both the nucleon current and the meson-exchange current contributions. The latter uses short-range hadronic form factors for the pion exchange currents consistent with the soft cut-off parameter Lambda(piNN) from the NN-potential. Contributions of the pion exchange current and A-isobar current to the total cross-section still cannot explain the discrepancy between the theoretical and experimental cross-sections. Possibilities for new types of meson exchange currents associated with chiral fields inside multi-quark dressed-bag states in nuclei are discussed.