Pion absorption from the lowest atomic orbital in 2H, 3H and 3He.

Abstract. The π⁻ + ²H → n + n,^π−+³H → n + n + n, π⁻+³He → n + d and π⁻ + ³He → p + n + n capture reactions from the lowest atomic orbitals are investigated under full inclusion of final state interactions and employing the single-nucleon and two-nucleon transition operators derived at leading order in chiral effective field theory. [ABSTRACT FROM AUTHOR]