How Many-Body Correlations and Clustering Shape
Abstract
The Borromean 6He nucleus is an exotic system characterized by two halo neutrons orbiting around a compact 4He (or α) core, in which the binary subsystems are unbound. The simultaneous reproduction of its small binding energy and extended matter and point-proton radii has been a challenge for ab initio theoretical calculations based on traditional bound-state methods. Using soft nucleon-nucleon interactions based on chiral effective field theory potentials, we show that supplementing the model space with 4He + n + n cluster degrees of freedom largely solves this issue. Lastly, we analyze the role played by α clustering and many-body correlations, and study the dependence of the energy spectrum on the resolution scale of the interaction.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- TRIUMF, Vancouver, BC (Canada)
- Alternative Energies and Atomic Energy Commission (CEA), Arpajon (France)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1376032
- Alternate Identifier(s):
- OSTI ID: 1333340
- Report Number(s):
- LLNL-JRNL-693078
Journal ID: ISSN 0031-9007; PRLTAO
- Grant/Contract Number:
- AC52-07NA27344; 401945-2011; SAPIN-2016-00033
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 117; Journal Issue: 22; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Romero-Redondo, Carolina, Quaglioni, Sofia, Navrátil, Petr, and Hupin, Guillaume. How Many-Body Correlations and α Clustering Shape He6. United States: N. p., 2016.
Web. doi:10.1103/PhysRevLett.117.222501.
Romero-Redondo, Carolina, Quaglioni, Sofia, Navrátil, Petr, & Hupin, Guillaume. How Many-Body Correlations and α Clustering Shape He6. United States. https://doi.org/10.1103/PhysRevLett.117.222501
Romero-Redondo, Carolina, Quaglioni, Sofia, Navrátil, Petr, and Hupin, Guillaume. Wed .
"How Many-Body Correlations and α Clustering Shape He6". United States. https://doi.org/10.1103/PhysRevLett.117.222501. https://www.osti.gov/servlets/purl/1376032.
@article{osti_1376032,
title = {How Many-Body Correlations and α Clustering Shape He6},
author = {Romero-Redondo, Carolina and Quaglioni, Sofia and Navrátil, Petr and Hupin, Guillaume},
abstractNote = {The Borromean 6He nucleus is an exotic system characterized by two halo neutrons orbiting around a compact 4He (or α) core, in which the binary subsystems are unbound. The simultaneous reproduction of its small binding energy and extended matter and point-proton radii has been a challenge for ab initio theoretical calculations based on traditional bound-state methods. Using soft nucleon-nucleon interactions based on chiral effective field theory potentials, we show that supplementing the model space with 4He + n + n cluster degrees of freedom largely solves this issue. Lastly, we analyze the role played by α clustering and many-body correlations, and study the dependence of the energy spectrum on the resolution scale of the interaction.},
doi = {10.1103/PhysRevLett.117.222501},
journal = {Physical Review Letters},
number = 22,
volume = 117,
place = {United States},
year = {Wed Nov 23 00:00:00 EST 2016},
month = {Wed Nov 23 00:00:00 EST 2016}
}
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