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Title: Structure of Cl 38 and the quest for a comprehensive shell model interaction

Abstract

The higher-spin structure of 38Cl ($N=21$) was investigated following the 26Mg( 14C, $pn$) reaction at 30 and 37 MeV beam energies. The outgoing protons were detected in an $E-ΔE$ Si telescope placed at 0° close to the target with a Ta beam stopper between the target and telescope. Multiple $γ$ rays were detected in time coincidence with the protons using an enhanced version of the FSU $γ$-detection array. The level scheme was extended up to 8420 keV with a likely spin of 10 $ℏ$. A new multishell interaction was developed guided by the experimental information. This FSU interaction was built by fitting to the energies of 270 experimental states from 13C to 51Ti. Calculations using the FSU interaction reproduce observed properties of 38Cl rather well, including the spectroscopic factors. The interaction has been successfully used to interpret the 1p1h and 2p2h configurations in some nearby nuclei as well.

Authors:
ORCiD logo [1];  [2];  [1];  [1];  [1];  [1];  [3];  [1];  [1];  [1]
  1. Florida State Univ., Tallahassee, FL (United States). Dept. of Physics
  2. Florida State Univ., Tallahassee, FL (United States). Dept. of Physics; Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Florida State Univ., Tallahassee, FL (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Science Foundation (NSF)
OSTI Identifier:
1564110
Alternate Identifier(s):
OSTI ID: 1561398; OSTI ID: 1594010
Grant/Contract Number:  
SC0009883; PHY-1712953; AC05-00OR22725; AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 100; Journal Issue: 3; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Energy levels & level densities; Nuclear forces; Nuclear structure & decays; Shell model

Citation Formats

Lubna, R. S., Kravvaris, K., Tabor, S. L., Tripathi, Vandana, Volya, A., Rubino, E., Allmond, J. M., Abromeit, B., Baby, L. T., and Hensley, T. C. Structure of Cl38 and the quest for a comprehensive shell model interaction. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.100.034308.
Lubna, R. S., Kravvaris, K., Tabor, S. L., Tripathi, Vandana, Volya, A., Rubino, E., Allmond, J. M., Abromeit, B., Baby, L. T., & Hensley, T. C. Structure of Cl38 and the quest for a comprehensive shell model interaction. United States. doi:10.1103/PhysRevC.100.034308.
Lubna, R. S., Kravvaris, K., Tabor, S. L., Tripathi, Vandana, Volya, A., Rubino, E., Allmond, J. M., Abromeit, B., Baby, L. T., and Hensley, T. C. Sun . "Structure of Cl38 and the quest for a comprehensive shell model interaction". United States. doi:10.1103/PhysRevC.100.034308.
@article{osti_1564110,
title = {Structure of Cl38 and the quest for a comprehensive shell model interaction},
author = {Lubna, R. S. and Kravvaris, K. and Tabor, S. L. and Tripathi, Vandana and Volya, A. and Rubino, E. and Allmond, J. M. and Abromeit, B. and Baby, L. T. and Hensley, T. C.},
abstractNote = {The higher-spin structure of 38Cl ($N=21$) was investigated following the 26Mg(14C, $pn$) reaction at 30 and 37 MeV beam energies. The outgoing protons were detected in an $E-ΔE$ Si telescope placed at 0° close to the target with a Ta beam stopper between the target and telescope. Multiple $γ$ rays were detected in time coincidence with the protons using an enhanced version of the FSU $γ$-detection array. The level scheme was extended up to 8420 keV with a likely spin of 10 $ℏ$. A new multishell interaction was developed guided by the experimental information. This FSU interaction was built by fitting to the energies of 270 experimental states from 13C to 51Ti. Calculations using the FSU interaction reproduce observed properties of 38Cl rather well, including the spectroscopic factors. The interaction has been successfully used to interpret the 1p1h and 2p2h configurations in some nearby nuclei as well.},
doi = {10.1103/PhysRevC.100.034308},
journal = {Physical Review C},
number = 3,
volume = 100,
place = {United States},
year = {2019},
month = {9}
}

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