Decay studies of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">Au</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>170</mml:mn><mml:mo>,</mml:mo><mml:mn>171</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">Hg</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>171</mm

Kettunen, H.; Enqvist, T.; Grahn, T.; Greenlees, P. T.; Jones, P.; Julin, R.; Juutinen, S.; Keenan, A.; Kuusiniemi, P.; Leino, M.; Leppänen, Ari-Pekka; Nieminen, P.; Pakarinen, J.; Rahkila, P.; Uusitalo, J.

doi:10.1103/physrevc.69.054323

Cited by 60 publications

(50 citation statements)

References 32 publications

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“…1 is then equal to ln(τ ) where τ is the lifetime of the α-decaying state. The method of maximum likelihood [27] has yielded a half life for the α decay of 173 Hg of 0.80(8) ms. Again, this is in good agreement with the previously reported values [14,15] but is a more precise measurement. Using the β-decay half-life predicted by Moller et al [28], the α-decay branching ratio of 173 Hg is estimated to be 100(4)% which yields a reduced width of 80 (9) [30].…”

Section: Resultssupporting

confidence: 93%

“…The DSSDs were calibrated using α lines at 5407, 6038 and 6315 keV corresponding to the known activities of 170 Os [22] (not visible in Figure 1), 174 Pt [23] and 172 Pt [24], respectively. The α particles associated with the decay of 173 Hg were measured to have an energy of 7208(5) keV which is in agreement with the previously reported values [14,15] but represents a more precise measurement. In total, approximately 1000 recoil-α( 173 Hg) events were observed throughout the ≈285 hours of the experiment.…”

Section: Resultssupporting

confidence: 89%

“…The only other study of the properties of 173 Hg was the work of Kettunen et al [15] in which an energy of 7192(13) keV and a half-life of 0.59…”

Section: Introductionmentioning

confidence: 99%

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First observation of excited states inHg172

Cederwall¹,

Hadinia²,

Andgren³

et al. 2009

Phys. Rev. C

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The neutron-deficient nucleus 173 Hg has been studied following fusion-evaporation reactions. The observation of the decay of excited states via γ radiation are reported for the first time and a tentative level scheme is proposed. The proposed level scheme is discussed within the context of the systematics of neighboring neutron-deficient Hg nuclei. In addition to the γ-ray spectroscopy, the α decay of this nucleus has been measured yielding superior precision to earlier measurements.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 89%

See 1 more Smart Citation

First observation of excited states inHg172

Cederwall¹,

Hadinia²,

Andgren³

et al. 2009

Phys. Rev. C

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“…The level energy is pushed down as the neutron number decreases, and it becomes the ground state in 185 Bi ( [1], and references therein). In odd-mass astatine nuclei this state is known in isotopes [191][192][193][194][195][196][197][198][199][200][201] At [2][3][4][5]. It was first observed in 197 At, where it is known to be an α-decaying isomeric state, which lies 52 keV above the ground state.…”

Section: Introductionmentioning

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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“…Prior to this work, γ -ray transitions in 165 Os have been identified but no level scheme of excited states was proposed [12]. However, the spin and parity of the ground state of 165 Os have been assigned to be 7/2 − on the basis of the measured proton and α radioactivity observed in a correlated decay chain originating from 170 Au [15]. The ground state of 163 Os is also assigned as having spin and parity 7/2 − on the basis of the low hindrance factor of its α decay to the 7/2 − ground state of 159 W [16,17].…”

Section: Introductionmentioning

confidence: 99%

Low-lying excited states in the neutron-deficient isotopes163Os and165Os

et al. 2013

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Excited states in the neutron-deficient isotopes 163 Os and 165 Os were identified using the JUROGAM and GREAT spectrometers in conjunction with the RITU gas-filled separator. Kr,2p3n) reactions at bombarding energies of 270 MeV and 357 MeV, respectively. Gamma-ray emissions from these nuclei have been established unambiguously using the recoil-decay tagging technique and a coincidence analysis has allowed level schemes to be established. These results suggest that the yrast states are based upon negative-parity configurations originating from the νf 7/2 and νh 9/2 orbitals.

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Decay studies ofAu170,171,Hg171

Cited by 60 publications

References 32 publications

First observation of excited states inHg172

First observation of excited states inHg172

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

Low-lying excited states in the neutron-deficient isotopes163Os and165Os

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