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Title: Isomers from intrinsic excitations in Tl 200 and Pb 201 , 202

Abstract

We report that a six-quasiparticle isomer with T 1/2 = 57(2) ns has been established in the doubly-odd isotope 200Tl and its level scheme is significantly extended. Half-lives of previously reported isomers in 200Tl and 201,202Pb have been determined and revised values are reported in a few cases, with T 1/2 = 397(17) ns and 7.0(5) ns for the I π = 5 + and 7 - states in 200Tl, 52(2) ns for the 41/2 + level in 201Pb, and 93(4) ns for the 16 + state in 202Pb. Configurations for the isomers have been assigned and these predominantly involve intrinsic excitations of neutrons from the i 13/2 subshell. Lastly, the inferred transition rates for the decay of these isomers compare well with single-particle estimates attesting to their intrinsic character.

Authors:
 [1]; ORCiD logo [2];  [1];  [3];  [4];  [5];  [5];  [5];  [5];  [6];  [5];  [5]
  1. Univ. of Mumbai (India)
  2. Univ. of Mumbai (India); Univ. of Massachusetts, Lowell, MA (United States)
  3. Univ. of Massachusetts, Lowell, MA (United States)
  4. Univ. of North Carolina, Chapel Hill, NC (United States); Duke Univ., Durham, NC (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
  6. Univ. of Massachusetts, Lowell, MA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1560058
Alternate Identifier(s):
OSTI ID: 1557354
Grant/Contract Number:  
AC02-06CH11357; FG02-94ER40848; FG02-94ER40834; FG02-97ER41033; FG02-97ER41041
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 100; Journal Issue: 2; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Roy, Poulomi, Tandel, S. K., Suman, Saket, Chowdhury, P., Janssens, R. V. F., Carpenter, M. P., Khoo, T. L., Kondev, F. G., Lauritsen, T., Lister, C. J., Seweryniak, D., and Zhu, S. Isomers from intrinsic excitations in Tl200 and Pb201,202. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.100.024320.
Roy, Poulomi, Tandel, S. K., Suman, Saket, Chowdhury, P., Janssens, R. V. F., Carpenter, M. P., Khoo, T. L., Kondev, F. G., Lauritsen, T., Lister, C. J., Seweryniak, D., & Zhu, S. Isomers from intrinsic excitations in Tl200 and Pb201,202. United States. doi:10.1103/PhysRevC.100.024320.
Roy, Poulomi, Tandel, S. K., Suman, Saket, Chowdhury, P., Janssens, R. V. F., Carpenter, M. P., Khoo, T. L., Kondev, F. G., Lauritsen, T., Lister, C. J., Seweryniak, D., and Zhu, S. Wed . "Isomers from intrinsic excitations in Tl200 and Pb201,202". United States. doi:10.1103/PhysRevC.100.024320.
@article{osti_1560058,
title = {Isomers from intrinsic excitations in Tl200 and Pb201,202},
author = {Roy, Poulomi and Tandel, S. K. and Suman, Saket and Chowdhury, P. and Janssens, R. V. F. and Carpenter, M. P. and Khoo, T. L. and Kondev, F. G. and Lauritsen, T. and Lister, C. J. and Seweryniak, D. and Zhu, S.},
abstractNote = {We report that a six-quasiparticle isomer with T1/2 = 57(2) ns has been established in the doubly-odd isotope 200Tl and its level scheme is significantly extended. Half-lives of previously reported isomers in 200Tl and 201,202Pb have been determined and revised values are reported in a few cases, with T1/2 = 397(17) ns and 7.0(5) ns for the Iπ = 5+ and 7- states in 200Tl, 52(2) ns for the 41/2+ level in 201Pb, and 93(4) ns for the 16+ state in 202Pb. Configurations for the isomers have been assigned and these predominantly involve intrinsic excitations of neutrons from the i13/2 subshell. Lastly, the inferred transition rates for the decay of these isomers compare well with single-particle estimates attesting to their intrinsic character.},
doi = {10.1103/PhysRevC.100.024320},
journal = {Physical Review C},
number = 2,
volume = 100,
place = {United States},
year = {2019},
month = {8}
}

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