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Title: Unified ab initio approaches to nuclear structure and reactions

Abstract

The description of nuclei starting from the constituent nucleons and the realistic interactions among them has been a long-standing goal in nuclear physics. In addition to the complex nature of the nuclear forces, with two-, three- and possibly higher many-nucleon components, one faces the quantum-mechanical many-nucleon problem governed by an interplay between bound and continuum states. In recent years, significant progress has been made in ab initio nuclear structure and reaction calculations based on input from QCD-employing Hamiltonians constructed within chiral effective field theory. After a brief overview of the field, we focus on ab initio many-body approaches—built upon the no-core shell model—that are capable of simultaneously describing both bound and scattering nuclear states, and present results for resonances in light nuclei, reactions important for astrophysics and fusion research. In particular, we review recent calculations of resonances in the 6He halo nucleus, of five- and six-nucleon scattering, and an investigation of the role of chiral three-nucleon interactions in the structure of 9Be. Further, we discuss applications to the 7Be $${({\rm{p}},\gamma )}^{8}{\rm{B}}$$ radiative capture. Lastly, we highlight our efforts to describe transfer reactions including the 3H$${({\rm{d}},{\rm{n}})}^{4}$$He fusion.

Authors:
 [1];  [2];  [3];  [2];  [1]
  1. TRIUMF, Vancouver, BC (Canada)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Univ. Paris-Sud, Orsay Cedex (France); CEA, DAM, DIF, 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)
OSTI Identifier:
1343017
Alternate Identifier(s):
OSTI ID: 1247205
Report Number(s):
LLNL-JRNL-680282
Journal ID: ISSN 0031-8949
Grant/Contract Number:  
AC52-07NA27344; SCW1158
Resource Type:
Accepted Manuscript
Journal Name:
Physica Scripta
Additional Journal Information:
Journal Volume: 91; Journal Issue: 5; Journal ID: ISSN 0031-8949
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ab initio methods; many-body nuclear reaction theory; nuclear reactions involving few-nucleon systems; three-nucleon forces; radiative capture

Citation Formats

Navratil, Petr, Quaglioni, Sofia, Hupin, Guillaume, Romero-Redondo, Carolina, and Calci, Angelo. Unified ab initio approaches to nuclear structure and reactions. United States: N. p., 2016. Web. doi:10.1088/0031-8949/91/5/053002.
Navratil, Petr, Quaglioni, Sofia, Hupin, Guillaume, Romero-Redondo, Carolina, & Calci, Angelo. Unified ab initio approaches to nuclear structure and reactions. United States. https://doi.org/10.1088/0031-8949/91/5/053002
Navratil, Petr, Quaglioni, Sofia, Hupin, Guillaume, Romero-Redondo, Carolina, and Calci, Angelo. Wed . "Unified ab initio approaches to nuclear structure and reactions". United States. https://doi.org/10.1088/0031-8949/91/5/053002. https://www.osti.gov/servlets/purl/1343017.
@article{osti_1343017,
title = {Unified ab initio approaches to nuclear structure and reactions},
author = {Navratil, Petr and Quaglioni, Sofia and Hupin, Guillaume and Romero-Redondo, Carolina and Calci, Angelo},
abstractNote = {The description of nuclei starting from the constituent nucleons and the realistic interactions among them has been a long-standing goal in nuclear physics. In addition to the complex nature of the nuclear forces, with two-, three- and possibly higher many-nucleon components, one faces the quantum-mechanical many-nucleon problem governed by an interplay between bound and continuum states. In recent years, significant progress has been made in ab initio nuclear structure and reaction calculations based on input from QCD-employing Hamiltonians constructed within chiral effective field theory. After a brief overview of the field, we focus on ab initio many-body approaches—built upon the no-core shell model—that are capable of simultaneously describing both bound and scattering nuclear states, and present results for resonances in light nuclei, reactions important for astrophysics and fusion research. In particular, we review recent calculations of resonances in the 6He halo nucleus, of five- and six-nucleon scattering, and an investigation of the role of chiral three-nucleon interactions in the structure of 9Be. Further, we discuss applications to the 7Be ${({\rm{p}},\gamma )}^{8}{\rm{B}}$ radiative capture. Lastly, we highlight our efforts to describe transfer reactions including the 3H${({\rm{d}},{\rm{n}})}^{4}$He fusion.},
doi = {10.1088/0031-8949/91/5/053002},
journal = {Physica Scripta},
number = 5,
volume = 91,
place = {United States},
year = {Wed Apr 13 00:00:00 EDT 2016},
month = {Wed Apr 13 00:00:00 EDT 2016}
}

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