Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Time-Reversed Particle-Vibration Loops and Nuclear Gamow-Teller Response

Journal Article · · Physical Review Letters
 [1];  [2]
  1. Univ. of Washington, Seattle, WA (United States); Michigan State Univ., East Lansing, MI (United States); OSTI
  2. Western Michigan Univ., Kalamazoo MI (United States); Michigan State Univ., East Lansing, MI (United States)
The nuclear response theory for charge-exchange modes in the relativistic particle-vibration coupling approach is extended to include for the first time particle-vibration coupling effects in the ground state of the parent nucleus. In a framework based on the effective meson-nucleon Lagrangian, we investigate the role of such complex ground-state correlations in the description of Gamow-Teller transitions in 90Zr in both (p, n) and (n, p) channels. In this work, the particle-vibration coupling effects are calculated without introducing new parameters. We find that this new correlation mechanism is fully responsible for the appearance of the strength in the n, p) branch. Comparison of our results to the available experimental data shows a very good agreement up to excitation energies beyond the giant resonance region when taking into account a phenomenological admixture of the isovector spin monopole transitions. The parent-daughter binding-energy differences are also greatly improved by the inclusion of the new correlations.
Research Organization:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Science Foundation (NSF)
Grant/Contract Number:
FG02-00ER41132
OSTI ID:
1799987
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 123; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (29)

The nuclear response within extended RPA theories journal December 1990
The role of 1p1h⊗phonon ground-state correlations in the isoscalar E0 excitations of magic nuclei journal September 1994
Determination of the Gamow–Teller quenching factor from charge exchange reactions on 90Zr journal June 2005
The effective force NL3 revisited journal January 2009
Fragmentation of spin-dipole strength in 90Zr and 208Pb journal January 2012
Benchmarking nuclear models for Gamow–Teller response journal March 2014
Interplay of quasiparticle-vibration coupling and pairing correlations on β -decay half-lives journal May 2018
Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review journal March 2017
The NUBASE2016 evaluation of nuclear properties journal March 2017
The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures journal March 2017
The AME2016 atomic mass evaluation (II). Tables, graphs and references journal March 2017
Spin-isospin strength and spectral functions journal October 1993
Gamow-Teller strength of 90 Nb in the continuum studied via multipole decomposition analysis of the 90 Zr ( p , n ) reaction at 295 MeV journal June 1997
Quasiparticle random phase approximation based on the relativistic Hartree-Bogoliubov model. II. Nuclear spin and isospin excitations journal May 2004
Quasiparticle time blocking approximation within the framework of generalized Green function formalism journal February 2007
Gamow-Teller response within Skyrme random-phase approximation plus particle-vibration coupling journal March 2012
Gamow-Teller strengths and electron-capture rates for p f -shell nuclei of relevance for late stellar evolution journal July 2012
Quasiparticle random-phase approximation with quasiparticle-vibration coupling: Application to the Gamow-Teller response of the superfluid nucleus Sn 120 journal December 2016
Examination of the consistency of the quasiparticle random-phase approximation approach to double- β decay of Ca 48 journal March 2018
Coupling charge-exchange vibrations to nucleons in a relativistic framework: Effect on Gamow-Teller transitions and β-decay half-lives journal November 2018
Identification of the β + Isovector Spin Monopole Resonance via the Pb 208 and Zr 90 ( t , He 3 ) Reactions at 300     MeV / u journal June 2012
Role of the Dirac Sea in the Quenching of Gamow-Teller Strength journal August 2003
Nuclear weak-interaction processes in stars journal June 2003
The method of time-ordered graph decoupling and its application to the description of giant resonances in magic nuclei journal March 1997
Nuclear response theory for spin-isospin excitations in a relativistic quasiparticle-phonon coupling framework journal July 2016
The effective force NL3 revisited text January 2009
The Gamow-Teller response within Skyrme random-phase approximation plus particle-vibration coupling text January 2012
Benchmarking nuclear models for Gamow-Teller response text January 2014
Nuclear response theory for spin-isospin excitations in a relativistic quasiparticle-phonon coupling framework text January 2016

Cited By (2)


Similar Records

On the interplay between allowed Gamow-Teller and Isovector Spin Monopole (IVSM) excitations
Journal Article · Thu Dec 15 23:00:00 EST 2011 · AIP Conference Proceedings · OSTI ID:22003971

Gamow-Teller strength functions from nucleon scattering experiments
Conference · Wed Dec 09 23:00:00 EST 1987 · AIP Conf. Proc.; (United States) · OSTI ID:5401970

Coupling charge-exchange vibrations to nucleons in a relativistic framework: Effect on Gamow-Teller transitions and β-decay half-lives
Journal Article · Tue Nov 20 23:00:00 EST 2018 · Physical Review C · OSTI ID:1609317