High spin structure of $\mathrm{^{39}Ar}$ and the FSU cross-shell interaction

Abromeit, B.; Tabor, S. L.; Tripathi, Vandana; Lubna, R. S.; Caussyn, D.; Dungan, R.; Kravvaris, K.; Rubino, E.; Tai, P. -L.; Volya, A.

doi:10.1103/PhysRevC.100.014310

Title: High spin structure of $$\mathrm{^{39}Ar}$$ and the FSU cross-shell interaction

Abstract

High-spin states in $$\mathrm{^{39}Ar}$$ were populated using the $$\mathrm{^{27}Al(^{14}C,} pn)$$ reaction at 25.6 MeV. The de-exciting $$γ$$ rays were measured with the FSU $$γ$$ detector array along with evaporation protons in a Si $E-ΔE$ telescope. The known high-spin level scheme was extended up to over 11 MeV with a dozen new levels above the neutron decay threshold. The decay pattern appears somewhat atypical for heavy-ion fusion-evaporation reactions. The structure of $$\mathrm{^{39}Ar}$$ is discussed in terms of the new FSU cross-shell $spsdpf$ interaction fitted to a wide range of nuclei. This interaction has proved quite successful in accounting for the level scheme of $$\mathrm{^{39}Ar}$$, including the previously suggested fully aligned $$πf_{7/2} Ⓧ νf_{7/2}17/2^+$$ state and previously discovered analogs of the lowest states in $$\mathrm{^{39}Cl}$$.

Authors:

Abromeit, B. ^[1]; Tabor, S. L. ^[1]; Tripathi, Vandana ^[1]; Lubna, R. S. ^[1]; Caussyn, D. ^[1]; Dungan, R. ^[1]; Kravvaris, K. ^[1]; Rubino, E. ^[1]; Tai, P. -L. ^[1]; Volya, A. ^[1]

Florida State Univ., Tallahassee, FL (United States). Dept. of Physics

Publication Date:: Tue Jul 16 00:00:00 EDT 2019

Research Org.:: Texas A & M Univ., College Station, TX (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1574995

Alternate Identifier(s):: OSTI ID: 1546432

Grant/Contract Number:: NA0003841; SC0009883; AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 100; Journal Issue: 1; 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


                    Abromeit, B., Tabor, S. L., Tripathi, Vandana, Lubna, R. S., Caussyn, D., Dungan, R., Kravvaris, K., Rubino, E., Tai, P. -L., and Volya, A. High spin structure of $\mathrm{^{39}Ar}$ and the FSU cross-shell interaction.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevC.100.014310.

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                    Abromeit, B., Tabor, S. L., Tripathi, Vandana, Lubna, R. S., Caussyn, D., Dungan, R., Kravvaris, K., Rubino, E., Tai, P. -L., & Volya, A. High spin structure of $\mathrm{^{39}Ar}$ and the FSU cross-shell interaction.  United States.  https://doi.org/10.1103/PhysRevC.100.014310

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                    Abromeit, B., Tabor, S. L., Tripathi, Vandana, Lubna, R. S., Caussyn, D., Dungan, R., Kravvaris, K., Rubino, E., Tai, P. -L., and Volya, A. Tue .  
"High spin structure of $\mathrm{^{39}Ar}$ and the FSU cross-shell interaction".  United States.  https://doi.org/10.1103/PhysRevC.100.014310.  https://www.osti.gov/servlets/purl/1574995.

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@article{osti_1574995,

  title        = {High spin structure of $\mathrm{^{39}Ar}$ and the FSU cross-shell interaction},

  author       = {Abromeit, B. and Tabor, S. L. and Tripathi, Vandana and Lubna, R. S. and Caussyn, D. and Dungan, R. and Kravvaris, K. and Rubino, E. and Tai, P. -L. and Volya, A.},

  abstractNote = {High-spin states in $\mathrm{^{39}Ar}$ were populated using the $\mathrm{^{27}Al(^{14}C,} pn)$ reaction at 25.6 MeV. The de-exciting $γ$ rays were measured with the FSU $γ$ detector array along with evaporation protons in a Si $E-ΔE$ telescope. The known high-spin level scheme was extended up to over 11 MeV with a dozen new levels above the neutron decay threshold. The decay pattern appears somewhat atypical for heavy-ion fusion-evaporation reactions. The structure of $\mathrm{^{39}Ar}$ is discussed in terms of the new FSU cross-shell $spsdpf$ interaction fitted to a wide range of nuclei. This interaction has proved quite successful in accounting for the level scheme of $\mathrm{^{39}Ar}$, including the previously suggested fully aligned $πf_{7/2} Ⓧ νf_{7/2}17/2^+$ state and previously discovered analogs of the lowest states in $\mathrm{^{39}Cl}$.},

  doi          = {10.1103/PhysRevC.100.014310},

  journal      = {Physical Review C},

  number       = 1,

  volume       = 100,

  place        = {United States},

  year         = {Tue Jul 16 00:00:00 EDT 2019},

  month        = {Tue Jul 16 00:00:00 EDT 2019}

}

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https://doi.org/10.1103/PhysRevC.100.014310

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Cited by: 3 works

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Figures / Tables:

TABLE I: Directional correlation of oriented nuclei ratios between the 3 ∆J = 1 transitions and the indicated γ lines. Ratios near unity are expected if the second transition also has ∆J = 1, A ratio near 2 is expected if the second transition has ∆J = 0 or 2.

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Works referenced in this record:

Distorted-Wave Born-Approximation Analysis of ${}^{36, 38}{Ar} (d, p)$ to Neutron Resonances in ${}^{37, 39}{Ar}$
journal, June 1973

Coker, W. R.
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Empirical strengths of spin operators in nuclei
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Wildenthal, B. H.
Progress in Particle and Nuclear Physics, Vol. 11
DOI: 10.1016/0146-6410(84)90011-5

Investigation of states of 39Ar by the 38Ar(d, p)39Ar reaction
journal, February 1967

Holbrow, C. H.; Rosner, B.
Nuclear Physics A, Vol. 91, Issue 3
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Reaction ${}^{38}{Ar} (d, p) {}^{39}{Ar}$
journal, April 1972

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Physical Review C, Vol. 5, Issue 4
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The 40Ar(p, d)39Ar and 36Ar(p, d)35Ar reactions at 27.5 MeV
journal, January 1968

Johnson, R. R.; Griffiths, R. J.
Nuclear Physics A, Vol. 108, Issue 1
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High-spin yrast levels in ${}^{39}{Ar}$
journal, April 1976

Warburton, E. K.; Olness, J. W.; Kolata, J. J.
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Low-lying states in ${}^{39}{Ar}$ from the ${}^{37}{Cl} (α, d) {}^{39}{Ar}$ reaction
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Physical Review C, Vol. 16, Issue 5
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journal, February 1977

Corwin, William C.; Segel, Ralph E.
Physical Review C, Vol. 15, Issue 2
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Fitz, W.; Jahr, R.; Santo, R.
Nuclear Physics A, Vol. 114, Issue 2
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New “USD” Hamiltonians for the $sd$ shell
journal, September 2006

Brown, B. Alex; Richter, W. A.
Physical Review C, Vol. 74, Issue 3
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Lifetimes of high-spin levels in39Ar
journal, June 1977

Keinonen, J.; Lieb, K. P.; Hellmeister, H. P.
Zeitschrift f�r Physik A: Atoms and Nuclei, Vol. 282, Issue 2
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High-spin states of ${(fp)}^{2}$ character in ${}^{34, 35, 36}{Cl}$ and ${}^{37, 39}{Ar}$
journal, June 1977

Nann, H.; Chien, W. S.; Saha, A.
Physical Review C, Vol. 15, Issue 6
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Reactions leading to 37Ar and 37K energy levels
journal, November 1966

McNally, J. H.
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Similar Records

Title: High spin structure of $$\mathrm{^{39}Ar}$$ and the FSU cross-shell interaction

Abstract

Citation Formats

Figures / Tables:

Distorted-Wave Born-Approximation Analysis of Ar 3 6 , 3 8 ( d , p ) to Neutron Resonances in Ar 3 7 , 3 9 journal, June 1973

Empirical strengths of spin operators in nuclei journal, January 1984

Investigation of states of 39Ar by the 38Ar(d, p)39Ar reaction journal, February 1967

Reaction Ar 38 ( d , p ) Ar 39 journal, April 1972

The 40Ar(p, d)39Ar and 36Ar(p, d)35Ar reactions at 27.5 MeV journal, January 1968

High-spin yrast levels in Ar 39 journal, April 1976

Low-lying states in Ar 39 from the Cl 37 ( α , d ) Ar 39 reaction journal, November 1977

Cl 37 ( He 3 , p ) Ar 39 reaction journal, February 1977

The (d, p) and (d, t) reactions on 38Ar and 40Ar journal, June 1968

New “USD” Hamiltonians for the sd shell journal, September 2006

Lifetimes of high-spin levels in39Ar journal, June 1977

High-spin states of ( fp ) 2 character in Cl 3 4 , 3 5 , 3 6 and Ar 3 7 , 3 9 journal, June 1977

Reactions leading to 37Ar and 37K energy levels journal, November 1966

Single-neutron hole states in 39Ar journal, March 1972

Distorted-Wave Born-Approximation Analysis of ${}^{36, 38}{Ar} (d, p)$ to Neutron Resonances in ${}^{37, 39}{Ar}$
journal, June 1973

Empirical strengths of spin operators in nuclei
journal, January 1984

Investigation of states of 39Ar by the 38Ar(d, p)39Ar reaction
journal, February 1967

Reaction ${}^{38}{Ar} (d, p) {}^{39}{Ar}$
journal, April 1972

The 40Ar(p, d)39Ar and 36Ar(p, d)35Ar reactions at 27.5 MeV
journal, January 1968

High-spin yrast levels in ${}^{39}{Ar}$
journal, April 1976

Low-lying states in ${}^{39}{Ar}$ from the ${}^{37}{Cl} (α, d) {}^{39}{Ar}$ reaction
journal, November 1977

${}^{37}{Cl} ({}^{3}{He}, p) {}^{39}{Ar}$ reaction
journal, February 1977

The (d, p) and (d, t) reactions on 38Ar and 40Ar
journal, June 1968

New “USD” Hamiltonians for the $sd$ shell
journal, September 2006

Lifetimes of high-spin levels in39Ar
journal, June 1977

High-spin states of ${(fp)}^{2}$ character in ${}^{34, 35, 36}{Cl}$ and ${}^{37, 39}{Ar}$
journal, June 1977

Reactions leading to 37Ar and 37K energy levels
journal, November 1966

Single-neutron hole states in 39Ar
journal, March 1972