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

• Main Authors: Witała, H, Golak, J, Skibiński, R, Topolnicki, K, Urbanevych, V
• Format: Journal Article
• Language: English
• Published: 06-12-2019
• Subjects: Physics - Nuclear Theory
• DOI: 10.48550/arxiv.1912.03122

Phys. Rev. C 101, 024003 (2020) 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.