γ-ray spectroscopy of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">At</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>197</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>

Andgren, K.; Jakobsson, U.; Cederwall, B.; Uusitalo, J.; Bäck, T.; Freeman, S. J.; Greenlees, P. T.; Hadinia, B.; Hugues, A.; Johnson, A.; Jones, P.; Joss, D. T.; Juutinen, S.; Julin, R.; Ketelhut, S.; Khaplanov, A.; Leino, M.; Nyman, M.; Page, R. D.; Rahkila, P.; Sandzelius, M.; Sapple, P. J.; Sarén, J.; Scholey, C.; Simpson, John; Sorri, J.; Thomson, James A.; Wyss, R.

doi:10.1103/physrevc.78.044328

Cited by 15 publications

(27 citation statements)

References 35 publications

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“…Similar strongly coupled bands based on the same configuration have been observed in 197 At [17] as well as in 191,193 Bi [3]. In Fig.…”

Section: A 195 Atsupporting

confidence: 82%

“…In 197 At the 13/2 + state has a half-life of 1.3(2) μs and it decays via a 310.7-keV M2 transition to the 9/2 − ground state [17]. In 193 At the 13/2 + state at an excitation energy of 39(7) keV decays mainly via an E3 transition to the 7/2 − state at 5(10) keV [15].…”

Section: A 195 Atmentioning

confidence: 99%

“…In 193 At the isomer was even observed to have an α-decay branch. The lightest odd-A astatine isotope that has so far been studied by means of in-beam γ -ray spectroscopy is 197 At, where a strongly coupled rotational band built on the 13/2 + state has been reported [13,17].…”

Section: Introductionmentioning

confidence: 99%

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γ-ray and decay spectroscopy of194,195,196At

et al. 2013

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Excited states of 195 At have been studied by means of in-beam γ -ray spectroscopy and the recoil-decay tagging technique. A strongly coupled rotational band feeding the α-decaying 7/2 − state via unobserved transitions was identified. This band is presumably built on the oblate proton I π = 13/2 + state. Confirming earlier measurements, α decays from the 1/2 + and 7/2 − states were observed. Additionally, an E3 branch competing with the α decay of the 7/2 − state was inferred. Also α decays of the odd-odd isotopes 194,196 At were examined.

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“…Similar strongly coupled bands based on the same configuration have been observed in 197 At [17] as well as in 191,193 Bi [3]. In Fig.…”

Section: A 195 Atsupporting

confidence: 82%

Section: A 195 Atmentioning

confidence: 99%

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γ-ray and decay spectroscopy of194,195,196At

et al. 2013

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“…For the first time we have observed the isomeric intruder 1 [4], and later Andgren et al [32] saw the first γ -ray transitions feeding the 1 /2 + state. In Fig.…”

Section: Discussionmentioning

confidence: 77%

“…This can be understood through the onset of deformation [28,48]. In astatine nuclei total Routhian surface (TRS) calculations [32] predict a sharp change in deformation between 195 At and 197 At. These calculations predict a near spherical shape for the π (h9 /2 ) 3 ground state configuration in [197][198][199][200][201][202][203][204][205][206][207][208][209][210][211] At odd-mass isotopes.…”

Section: Discussionmentioning

confidence: 99%

Experimental study of isomeric intruder 12+ states in At197,203

et al. 2017

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A newly observed isomeric intruder 1 /2 + state [T1 /2 = 3.5(6) ms] is identified in 203 At using a gas-filled recoil separator and fusion-evaporation reactions. The isomer is depopulated through a cascade of E3 and mixed M1/E2 transitions to the 9 /2 − ground state, and it is suggested to originate from the π (s1 /2 ) −1 configuration. In addition, the structures above the 1 /2 + state in 203 At and 197 At are studied using in-beam γ -ray spectroscopy, recoil-decay tagging, and recoil-isomer decay tagging methods. The 1 /2 + state is fed from 3 /2 + and 5 /2 + states, and the origin of these states are discussed.

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Excited Nuclear States for At-197 (Astatine)

Sukhoruchkin

Soroko

2013

Nuclei With Z = 74 - 103

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γ-ray spectroscopy ofAt197

Cited by 15 publications

References 35 publications

γ-ray and decay spectroscopy of194,195,196At

γ-ray and decay spectroscopy of194,195,196At

Experimental study of isomeric intruder 12+ states in At197,203

Excited Nuclear States for At-197 (Astatine)

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