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arXiv · 1912.03122

Investigation of interaction of circularly and linearly polarized photon beams with polarized 3He target

H. Witała·J. Golak·R. Skibiński·K. Topolnicki·V. Urbanevych
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Abstract

Photodisintegration of polarized 3He by linearly or circularily polarized photons offers a rich choice of observables which can be calculated with high precision using a rigorous scheme of three-nucleon Faddeev equations. Using the (semi)phenomenological AV18 nucleon-nucleon potential combined with the Urbana IX three-nucleon force we investigate sensitivity of 3He photodisintegration observables to underlying currents taken in the form of a single-nucleon current supplemented by two-body contributions for $\pi$- and $\rho$-meson exchanges or incorporated by the Siegert theorem. Promising observables to be measured for two- and three-body fragmentation of 3He are identified. These observables form a challenging test ground for consistent forces and currents being under derivation within the framework of chiral perturbation theory. For thre-body 3He photodisintegration several kinematicaly complete configurations, including SST and FSI, are also discussed.

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H. Witała, J. Golak, R. Skibiński, K. Topolnicki, V. Urbanevych. 2019-12-06. Investigation of interaction of circularly and linearly polarized photon beams with polarized 3He target. https://doi.org/10.1103/physrevc.101.024003

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