T-odd correlations in (n, αγ) reactions
Igor S. Okunev, Yu. M. Tchuvil’sky · Physics of Particles and Nuclei Letters · 2013
The T-odd correlation (k α · [σ × k γ])(k α · k γ), where σ is the vector of the neutron polarization and the symbols k denote the respective linear momenta (all vectors are unit ones), in the sequential alpha-gamma cascade induced by a thermal-neutron capture is studied. The study is performed in the one-resonance approximation. Both the final-state interaction of the alpha particle with the residual nucleus and the actual T-noninvariant phase shift are considered as possible origins of the correlation. The problem of suitable target isotopes is analyzed. Related correlations in other neutron- and proton-induced reactions are discussed.