Metastable states from multinucleon excitations in 
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 and 
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Wahid, S. G.; Suman, Saket; Hemalatha, M.; Patel, A.; Roy, Poulomi; Deo, A. Y.; Pragati,; Srivastava, P. C.; Bhoy, Bharti; Bhattacharjee, S. S.; Singh, R. P.; Muralithar, S.; Chowdhury, P.; Janssens, R. V. F.; Carpenter, M. P.; Khoo, T. L.; Kondev, F. G.; Lauritsen, T.; Lister, C. J.; Seweryniak, D.; Zhu, S.; Rai, S.; Sharma, A. K.

doi:10.1103/physrevc.102.024329

Cited by 14 publications

(9 citation statements)

References 40 publications

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“…The metastable states from multinucleon excitations in 202 Tl and 203 Pb recently reported in Ref. [30].…”

Section: Introductionmentioning

confidence: 86%

“…There have been several theoretical studies done in this mass region [20][21][22][23][24][25][26][27][28][29][30][31]. McGrory and Kuo [22] have reported the structure of the nuclei [204][205][206] Pb, [210][211][212] Pb, 210 Po, 211 At, and 212 Rn having few valence particles away from the 204 Pb core using conventional nuclear shell-model several decades before.…”

Section: Introductionmentioning

confidence: 99%

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Systematic shell-model study of Rn isotopes with $A=$ 207 to 216 and isomeric states

Bhoy,

Srivastava

2021

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In the present work, we have performed systematic large-scale shell-model calculations for Rn isotopes with A = 207 to 216. For the 207−212 Rn isotopes, we have performed calculations with KHH7B interaction, while for 213−216 Rn isotopes with KHPE and KHH7B interactions. Calculations have been carried out with the KHH7B in a model space consisting of the proton orbitals d 5/2 , h 11/2 , d 3/2 and s 1/2 below the Z = 82 shell gap, and the h 9/2 , f 7/2 , and i 13/2 above it, and for neutron, the i 13/2 , p 3/2 , f 5/2 , and p 1/2 orbitals are below N = 126 shell gap, and the g 9/2 , i 11/2 , j 15/2 orbitals are above it. The calculations for KHPE interaction are performed in the full Z = 82-126 protonneutron model space with proton orbitals h 9/2 , f 7/2 , f 5/2 , p 3/2 , p 1/2 , and i 13/2 , and neutron orbitals i 11/2 , g 9/2 , g 7/2 , d 5/2 , d 3/2 , s 1/2 , and j 15/2 . The calculated energies and electromagnetic properties have been compared with the available experimental data. We have also analyzed several isomeric states from the calculated shell-model configurations and half-lives. In the case of even Rn isotopes, the 81 + isomeric state is due to seniority v =2, the 141 + and 171 − isomeric states are due to seniority v =4. For the odd Rn isotopes, the 13/21 + isomeric state is due to seniority v =1, the 35/21 + , 43/21 − and 49/21 + isomeric states are due to seniority v = 5. We have also suggested spins and parities of several unconfirmed states from the recent experimental data.

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“…The metastable states from multinucleon excitations in 202 Tl and 203 Pb recently reported in Ref. [30].…”

Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Systematic shell-model study of Rn isotopes with $A=$ 207 to 216 and isomeric states

Bhoy,

Srivastava

2021

Preprint

Self Cite

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“…However, when approaching the N = 126 shell gap, collective behavior is no longer evident. This is the case for isotopes of Tl near the line of stability, where 203 Tl and 205 Tl are the two stable isotopes [1][2][3]8,9]. The nucleus 203 Tl, with N = 122, is only one proton and four neutron holes away from doubly magic 208 Pb and, as a result, its structure is expected to be dominated by single-particle excitations.…”

Section: Introductionmentioning

confidence: 99%

Isomers in Tl203 and core excitations built on a five-nucleon-hole structure

et al. 2022

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“…However, when approaching the N = 126 shell gap, collective behavior is no longer evident. This is the case for isotopes of Tl near the line of stability, where 203 Tl and 205 Tl are the two stable isotopes [1- 3,8,9]. The nucleus 203 Tl, with N = 122, is only one proton and four neutron holes away from doubly-magic 208 Pb and, as a result, its structure is expected to be dominated by single-particle excitations.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, there was limited knowledge on isomers in 200−203 Tl prior to investigations by this collaboration. Recently, the observation of isomers with half-lives ranging from a few nanoseconds to hundreds of microseconds in 200 Tl [11] and 202 Tl [8] were reported. The existing information on 203 Tl prior to the present work is limited, with levels up to possible spin (17/2) and excitation energy ≈3 MeV established through a deuteron-induced reaction [9], while a microsecond isomer was identified using projectile fragmentation [12].…”

Section: Introductionmentioning

confidence: 99%

Isomers in 203Tl and core excitations built on a five-nucleon-hole structure

Bothe,

Tandel,

Wahid

et al. 2021

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Isomers with three-and five-nucleon-hole configurations have been established in 203 Tl. These include newly identified levels with a three-nucleon structure: I π = (15/2 − ) with T 1/2 = 7.9(5) ns, and I π = (35/2 − ) with T 1/2 = 4.0(5) ns. In addition, five-quasiparticle states: I π = (39/2 − ) with T 1/2 = 1.9(2) ns, and I π = (49/2 + ) with T 1/2 = 3.4(4) ns have also been established. The previously determined long-lived decay [T 1/2 = 6.6(3) µs from this work] is associated with isomerism of the I π = (29/2 + ) state. Levels above this long-lived isomer have been identified through a delayed-prompt coincidence measurement. Five-nucleon-hole states with excitation energies Ex ≈ 7 MeV have been established as well as possible octupole excitations of the 208 Pb core built on these levels. The level scheme of 203 Tl is extended up to Ex ≈ 11 MeV with the inclusion of 25 new transitions. Empirical and shell-model calculations have been performed to aid in the description of the observed states which are found to be predominantly of intrinsic character.

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Metastable states from multinucleon excitations in Tl202 and Pb203

Cited by 14 publications

References 40 publications

Systematic shell-model study of Rn isotopes with $A=$ 207 to 216 and isomeric states

Systematic shell-model study of Rn isotopes with $A=$ 207 to 216 and isomeric states

Isomers in Tl203 and core excitations built on a five-nucleon-hole structure

Isomers in 203Tl and core excitations built on a five-nucleon-hole structure

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