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Title: Can Ab Initio Theory Explain the Phenomenon of Parity Inversion in Be 11 ?

The weakly bound exotic 11Be nucleus, famous for its ground-state parity inversion and distinct n + 10Be halo structure, is investigated from first principles using chiral two- and three-nucleon forces. An explicit treatment of continuum effects is found to be indispensable. We study the sensitivity of the 11Be spectrum to the details of the three-nucleon force and demonstrate that only certain chiral interactions are capable of reproducing the parity inversion. With such interactions, the extremely large E1 transition between the bound states is reproduced. We compare our photodisintegration calculations to conflicting experimental data and predict a distinct dip around the 3/2 1 resonance energy. Finally, we predict low-lying 3/2 + and 9/2 + resonances that are not or not sufficiently measured in experiments.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. TRIUMF, Vancouver, BC (Canada)
  2. Technische Univ. Darmstadt, Darmstadt (Germany)
  3. TRIUMF, Vancouver, BC (Canada); Istituto Nazionale di Fisica Nucleare, Pisa (Italy)
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  5. Univ. Paris-Sud, Orsay Cedex (France); CEA, DAM, DIF, Arpajon (France)
Publication Date:
Report Number(s):
LLNL-JRNL-700880
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:
AC52-07NA27344; SCW1158
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 117; Journal Issue: 24; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1366965
Alternate Identifier(s):
OSTI ID: 1335718

Calci, Angelo, Navratil, Petr, Roth, Robert, Dohet-Eraly, Jeremy, Quaglioni, Sofia, and Hupin, Guillaume. Can Ab Initio Theory Explain the Phenomenon of Parity Inversion in Be11 ?. United States: N. p., Web. doi:10.1103/PhysRevLett.117.242501.
Calci, Angelo, Navratil, Petr, Roth, Robert, Dohet-Eraly, Jeremy, Quaglioni, Sofia, & Hupin, Guillaume. Can Ab Initio Theory Explain the Phenomenon of Parity Inversion in Be11 ?. United States. doi:10.1103/PhysRevLett.117.242501.
Calci, Angelo, Navratil, Petr, Roth, Robert, Dohet-Eraly, Jeremy, Quaglioni, Sofia, and Hupin, Guillaume. 2016. "Can Ab Initio Theory Explain the Phenomenon of Parity Inversion in Be11 ?". United States. doi:10.1103/PhysRevLett.117.242501. https://www.osti.gov/servlets/purl/1366965.
@article{osti_1366965,
title = {Can Ab Initio Theory Explain the Phenomenon of Parity Inversion in Be11 ?},
author = {Calci, Angelo and Navratil, Petr and Roth, Robert and Dohet-Eraly, Jeremy and Quaglioni, Sofia and Hupin, Guillaume},
abstractNote = {The weakly bound exotic 11Be nucleus, famous for its ground-state parity inversion and distinct n + 10Be halo structure, is investigated from first principles using chiral two- and three-nucleon forces. An explicit treatment of continuum effects is found to be indispensable. We study the sensitivity of the 11Be spectrum to the details of the three-nucleon force and demonstrate that only certain chiral interactions are capable of reproducing the parity inversion. With such interactions, the extremely large E1 transition between the bound states is reproduced. We compare our photodisintegration calculations to conflicting experimental data and predict a distinct dip around the 3/2–1 resonance energy. Finally, we predict low-lying 3/2+ and 9/2+ resonances that are not or not sufficiently measured in experiments.},
doi = {10.1103/PhysRevLett.117.242501},
journal = {Physical Review Letters},
number = 24,
volume = 117,
place = {United States},
year = {2016},
month = {12}
}