Effective field theory for triaxially deformed odd-mass nuclei

2020/03/09 by Q. B. Chen, Chen, Q. B., Norbert Kaiser +5
Physics and Astronomy · #Astro and Planetary Science #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Nuclear physics research studies #Quantum, superfluid, helium dynamics

paper · pdf · doi:10.48550/arxiv.2003.04065

openalex publication_date 2020/03/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The effective field theory for collective rotations of triaxially deformed nuclei is generalized to odd-mass nuclei by including the angular momentum of the valence nucleon as an additional degree of freedom. The Hamiltonian is constructed up to next-to-leading order within the effective field theory formalism. The applicability of this Hamiltonian is examined by describing the wobbling bands observed in the lutetium isotopes ^{161,163,165,167}Lu. It is found that by taking into account the next-to-leading order corrections, quartic in the rotor angular momentum, the wobbling energies E_\textrmwob and spin-rotational frequency relations ω(I) are better described than with the leading order Hamiltonian.

Related

• Analyzing rotational bands in odd-mass nuclei using Effective Field Theory and Bayesian methods
• Microscopic investigation of wobbling motion in atomic nuclei using the triaxial projected shell model approach
• Wobbling excitations and tilted rotation in 163-Lu
• Prevailing Triaxial Shapes in Atomic Nuclei and a Quantum Theory of Rotation of Composite Objects
• Microscopic investigation of wobbling motion in even-even nuclei