Isomers from intrinsic excitations in Tl200 and Pb201,202

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.

doi:10.1103/PhysRevC.100.024320

Title: Isomers from intrinsic excitations in ${}^{200}{Tl}$ and ${}^{201, 202}{Pb}$

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:

Roy, Poulomi ^[1];

^[2]; Suman, Saket ^[1]; Chowdhury, P. ^[3]; Janssens, R. V. F. ^[4]; Carpenter, M. P. ^[5]; Khoo, T. L. ^[5]; Kondev, F. G. ^[5]; Lauritsen, T. ^[5]; Lister, C. J. ^[6]; Seweryniak, D. ^[5]; Zhu, S. ^[5]

Univ. of Mumbai (India)
Univ. of Mumbai (India); Univ. of Massachusetts, Lowell, MA (United States)
Univ. of Massachusetts, Lowell, MA (United States)
Univ. of North Carolina, Chapel Hill, NC (United States); Duke Univ., Durham, NC (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
Univ. of Massachusetts, Lowell, MA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

Publication Date:: 2019-08-14

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

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.

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                    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.  https://doi.org/10.1103/PhysRevC.100.024320

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                    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.  https://doi.org/10.1103/PhysRevC.100.024320.  https://www.osti.gov/servlets/purl/1560058.

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@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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Figures / Tables:

TABLE I: Half-life measurements of isomers in ²⁰⁰Tl and ^201,202Pb. For each isotope, the spin-parity and excitation energy of the isomer is listed. The half-life is determined by inspecting the difference in time of γ rays (E γ₁, E γ₂) above and below the isomer. The inferred half-life from eachmore »

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Works referenced in this record:

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Figures / Tables found in this record:

TABLE I (p. 16)

Table 1 (Continued) (p. 17)

TABLE II (p. 18)

TABLE II (Continued) (p. 19)

TABLE II (Continued) (p. 20)

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Similar Records

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

Abstract

Citation Formats

Figures / Tables:

Rotational structures in doubly odd transitional Tl nuclei journal, September 1978

Rotational structures in doubly odd 198Tl journal, May 1977

Measurement of the g-factor of the 0.57 ms 7+ state in202Tl journal, January 1974

High-spin states and isomers in the one-proton-hole and three-neutron-hole 204 Tl isotope journal, July 2011

High-spin isomers in 202Pb journal, October 1986

Measurement of the magnetic moment of the 7+ isomer in 198Tl journal, March 1983

Evaluation of theoretical conversion coefficients using BrIcc journal, May 2008

High-spin level spectra of the nuclei Pb 195 , Pb 197 , Pb 199 , and Pb 201 journal, April 1981

The AME2016 atomic mass evaluation (II). Tables, graphs and references journal, March 2017

Nuclear Data Sheets for A = 200 journal, July 2007

Nuclear Data Sheets for A = 202 journal, March 2008

Isomeric levels in the light thallium isotopes journal, July 1963

Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins journal, November 2015

New levels and a lifetime measurement in Tl 202 journal, July 2007

In-beam study of light Pb isotopes with the (p,4n) and (p,6n) reactions journal, January 1972

Investigation of the high-spin structure of 200,202Pb journal, December 1987

ESCL8R and LEVIT8R: Software for interactive graphical analysis of HPGe coincidence data sets journal, July 1995

New Physics Opportunities at Gammasphere journal, January 1996

Structure in Tl 200 and the odd-even staggering in π ̃ h 9 2 ⊗ ν ̃ i 13 2 bands journal, February 1981

Deformed band structures at high spin in Tl 200 journal, January 2017

Shears bands in 201Pb and 202Pb journal, September 1995

Rotation-aligned isomer and oblate collectivity in Pt 196 journal, November 2015

Nuclear Data Sheets for A = 201 journal, February 2007

Time differential g-factor measurement of the 7+ isomer in 204Tl journal, November 1972

YRAST spectroscopy and g-factor measurements in 199Pb, 201Pb and 203Pb journal, June 1988

The GAMMASPHERE journal, December 1990

Nuclear pairing models journal, January 1992

New levels and a lifetime measurement in Tl 204 journal, February 2008

Search for magnetic rotation in 202Pb and 203Pb journal, November 2000

High-spin neutron hole excitations in light odd-A Pb nuclei journal, April 1977

Title: Isomers from intrinsic excitations in ${}^{200}{Tl}$ and ${}^{201, 202}{Pb}$

Rotational structures in doubly odd transitional Tl nuclei
journal, September 1978

Rotational structures in doubly odd 198Tl
journal, May 1977

Measurement of the g-factor of the 0.57 ms 7+ state in202Tl
journal, January 1974

High-spin states and isomers in the one-proton-hole and three-neutron-hole $^{204}$ Tl isotope
journal, July 2011

High-spin isomers in 202Pb
journal, October 1986

Measurement of the magnetic moment of the 7+ isomer in 198Tl
journal, March 1983

Evaluation of theoretical conversion coefficients using BrIcc
journal, May 2008

High-spin level spectra of the nuclei ${}^{195}{Pb}$ , ${}^{197}{Pb}$ , ${}^{199}{Pb}$ , and ${}^{201}{Pb}$
journal, April 1981

The AME2016 atomic mass evaluation (II). Tables, graphs and references
journal, March 2017

Nuclear Data Sheets for A = 200
journal, July 2007

Nuclear Data Sheets for A = 202
journal, March 2008

Isomeric levels in the light thallium isotopes
journal, July 1963

Isomers and oblate rotation in Pt isotopes: Delineating the limit for collectivity at high spins
journal, November 2015

New levels and a lifetime measurement in ${}^{202}{Tl}$
journal, July 2007

In-beam study of light Pb isotopes with the (p,4n) and (p,6n) reactions
journal, January 1972

Investigation of the high-spin structure of 200,202Pb
journal, December 1987

ESCL8R and LEVIT8R: Software for interactive graphical analysis of HPGe coincidence data sets
journal, July 1995

New Physics Opportunities at Gammasphere
journal, January 1996

Structure in ${}^{200}{Tl}$ and the odd-even staggering in $\tilde{π} h_{\frac{9}{2}} \otimes \tilde{ν} i_{\frac{13}{2}}$ bands
journal, February 1981

Deformed band structures at high spin in ${}^{200}{Tl}$
journal, January 2017

Shears bands in 201Pb and 202Pb
journal, September 1995

Rotation-aligned isomer and oblate collectivity in ${}^{196}{Pt}$
journal, November 2015

Nuclear Data Sheets for A = 201
journal, February 2007

Time differential g-factor measurement of the 7+ isomer in 204Tl
journal, November 1972

YRAST spectroscopy and g-factor measurements in 199Pb, 201Pb and 203Pb
journal, June 1988

The GAMMASPHERE
journal, December 1990

Nuclear pairing models
journal, January 1992

New levels and a lifetime measurement in ${}^{204}{Tl}$
journal, February 2008

Search for magnetic rotation in 202Pb and 203Pb
journal, November 2000

High-spin neutron hole excitations in light odd-A Pb nuclei
journal, April 1977