From bare to renormalized order parameter in gauge space: structure and reactions

Abstract

The physical reason why one can calculate with similar accuracy, as compared to the experimental data, the absolute cross section associated with two-nucleon transfer processes between members of pairing rotational bands, making use of simple BCS (constant matrix elements) or of many-body (Nambu-Gorkov (NG), nuclear field theory (NFT)) spectroscopic amplitudes, is not immediately obvious. Restoration of spontaneous symmetry breaking and associated emergent generalised rigidity in gauge space provides the answer, and points to a new emergence: a physical sum rule resulting from the intertwining of structure and reaction processes and closely connected with the central role induced pairing interaction plays in structure together with the fact that successive transfer dominates Cooper pair tunnelling.

References in corpus (13)

• Cooper pair transfer in nuclei
• Microscopic calculation and LDA of the spatial dependence of the pairing field with bare and induced interactions
• Many-body effects in nuclear structure
• Solution of the Dyson equation for nucleons in the superfluid phase
• Pairing Matrix Elements and Pairing Gaps with Bare, Effective and Induced Interactions
• Quasiparticle Renormalization and Pairing Correlations in Spherical Superfluid Nuclei
• Pairing Nambu-Goldstone Modes within Nuclear Density Functional Theory
• Large amplitude pairing fluctuations in atomic nuclei
• Structure and reactions of 11Be: many-body basis for single-neutron halo
• Well funneled nuclear structure landscape: renormalization
• Quantitative study of coherent pairing modes with two neutron transfer: Sn-isotopes
• Unified description of structure and reactions: implementing the Nuclear Field Theory program
• Correlation energy contribution to nuclear masses

Cited by in corpus (6)

• Optical potentials for the rare-isotope beam era
• Quantum entanglement in nuclear Cooper pair tunneling with $\gamma$-rays
• Microscopic description of pair transfer between two superfluid Fermi systems: combining phase-space averaging and combinatorial techniques
• Nuclear spectra from low-energy interactions
• Effective field theory of pairing rotations
• Effective field theories for collective excitations of atomic nuclei