Signature splitting in three-quasiparticle rotational bands

Abstract

An empirical rule, which is an extension of the rule for two-quasiparticle bands, is devised to check the favoured signature in three-quasiparticle bands of $A=153\text{\ensuremath{-}}187$ mass region. Its applications, for testing the favored signature, confirmation of the spin/parity assignments, and confirmation of the configuration assignments to three-quasiparticle bands, are discussed. Violation of the rule for tilted rotational bands supports the fact that signature does not remain a good quantum number for tilted bands.