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Title: Nuclear Charge Radii of B 10 , 11

Abstract

The first laser spectroscopic determination of the change in the nuclear charge radius for a five-electron system is reported. This is achieved by combining high-accuracy ab initio mass-shift calculations and a high-accuracy measurement of the isotope shift in the 2s22p 2P1/2 → 2s23s 2S1/2 ground state transition in boron atoms. Accuracy is increased by orders of magnitude for the stable isotopes 10,11B and the results are used to extract their difference in the mean-square charge radius < r$$^{2}_{c}$$ > 11– < r$$^{2}_{c}$$ >10= –0.49(12) fm2. The result is qualitatively explained by a possible cluster structure of the boron nuclei and quantitatively used to benchmark new ab initio nuclear structure calculations using the no-core shell model and Green’s function Monte Carlo approaches. These results are the foundation for a laser spectroscopic determination of the charge radius of the proton-halo candidate 8B.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [3];  [4];  [5];  [1];  [6];  [1];  [3];  [1]
  1. TU Darmstadt, Darmstadt (Germany)
  2. Argonne National Lab. (ANL), Lemont, IL (United States); INFN-TIFPA Trento Institute of Fundamental Physics and Applications, Trento (Italy)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. Univ. of Warsaw, Warsaw (Poland)
  5. Adam Mickiewicz Univ., Poznan (Poland)
  6. GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt (Germany)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1542157
Alternate Identifier(s):
OSTI ID: 1511886
Grant/Contract Number:  
AC02-06CH11357; 2014/15/B/ST4/05022
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 122; Journal Issue: 18; 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

Maaß, Bernhard, Hüther, Thomas, König, Kristian, Krämer, Jörg, Krause, Jan, Lovato, Alessandro, Müller, Peter, Pachucki, Krzysztof, Puchalski, Mariusz, Roth, Robert, Sánchez, Rodolfo, Sommer, Felix, Wiringa, R. B., and Nörtershäuser, Wilfried. Nuclear Charge Radii of B10,11. United States: N. p., 2019. Web. doi:10.1103/PhysRevLett.122.182501.
Maaß, Bernhard, Hüther, Thomas, König, Kristian, Krämer, Jörg, Krause, Jan, Lovato, Alessandro, Müller, Peter, Pachucki, Krzysztof, Puchalski, Mariusz, Roth, Robert, Sánchez, Rodolfo, Sommer, Felix, Wiringa, R. B., & Nörtershäuser, Wilfried. Nuclear Charge Radii of B10,11. United States. doi:10.1103/PhysRevLett.122.182501.
Maaß, Bernhard, Hüther, Thomas, König, Kristian, Krämer, Jörg, Krause, Jan, Lovato, Alessandro, Müller, Peter, Pachucki, Krzysztof, Puchalski, Mariusz, Roth, Robert, Sánchez, Rodolfo, Sommer, Felix, Wiringa, R. B., and Nörtershäuser, Wilfried. Fri . "Nuclear Charge Radii of B10,11". United States. doi:10.1103/PhysRevLett.122.182501. https://www.osti.gov/servlets/purl/1542157.
@article{osti_1542157,
title = {Nuclear Charge Radii of B10,11},
author = {Maaß, Bernhard and Hüther, Thomas and König, Kristian and Krämer, Jörg and Krause, Jan and Lovato, Alessandro and Müller, Peter and Pachucki, Krzysztof and Puchalski, Mariusz and Roth, Robert and Sánchez, Rodolfo and Sommer, Felix and Wiringa, R. B. and Nörtershäuser, Wilfried},
abstractNote = {The first laser spectroscopic determination of the change in the nuclear charge radius for a five-electron system is reported. This is achieved by combining high-accuracy ab initio mass-shift calculations and a high-accuracy measurement of the isotope shift in the 2s22p 2P1/2 → 2s23s 2S1/2 ground state transition in boron atoms. Accuracy is increased by orders of magnitude for the stable isotopes 10,11B and the results are used to extract their difference in the mean-square charge radius < r$^{2}_{c}$ > 11– < r$^{2}_{c}$ >10= –0.49(12) fm2. The result is qualitatively explained by a possible cluster structure of the boron nuclei and quantitatively used to benchmark new ab initio nuclear structure calculations using the no-core shell model and Green’s function Monte Carlo approaches. These results are the foundation for a laser spectroscopic determination of the charge radius of the proton-halo candidate 8B.},
doi = {10.1103/PhysRevLett.122.182501},
journal = {Physical Review Letters},
number = 18,
volume = 122,
place = {United States},
year = {2019},
month = {5}
}

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