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1.
Population of a low-spin positive-parity band from high-spin intruder states in $^{177}$Au: The two-state mixing effect / Venhart, M (Bratislava, Inst. Phys.) ; Balogh, M (Bratislava, Inst. Phys.) ; Herzáň, A (Bratislava, Inst. Phys.) ; Wood, J L (Georgia Tech., Atlanta) ; Ali, F A (Liverpool U. ; Sulaimaniya U.) ; Joss, D T (Liverpool U.) ; Andreyev, A N (York U., England ; JAERI, Tokai) ; Auranen, K (Jyvaskyla U.) ; Carroll, R J (Liverpool U.) ; Drummond, M C (Liverpool U.) et al.
The extremely neutron-deficient isotopes $^{177,179}$Au were studied by means of in-beam γ -ray spectroscopy. Specific tagging techniques, α -decay tagging in $^{177}$Au and isomer tagging in $^{179}$Au, were used for these studies. [...]
2020 - 6 p. - Published in : Phys. Lett. B 806 (2020) 135488
2.
Competition between Allowed and First-Forbidden $β$ Decay: The Case of $^{208}$Hg$→^{208}$Tl / Carroll, R J (Surrey U.) ; Podolyák, Zs (Surrey U. ; Darmstadt, GSI) ; Berry, T (Surrey U.) ; Grawe, H (Darmstadt, GSI) ; Alexander, T (Surrey U.) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Ansari, S (Cologne U.) ; Borge, M J G (CERN) ; Brunet, M (Surrey U.) ; Creswell, J R (Liverpool U.) et al.
The $β$ decay of $^{208}$Hg into the one-proton hole, one neutron-particle $^{208}_{81}$Tl$_{127}$ nucleus was investigated at CERN-ISOLDE. Shell-model calculations describe well the level scheme deduced, validating the proton-neutron interactions used, with implications for the whole of the N>126, Z<82 quadrant of neutron-rich nuclei. [...]
2020 - 6 p. - Published in : Phys. Rev. Lett. 125 (2020) 192501 Fulltext: PDF;
3.
Octupole states in $^{207}$Tl studied through $β$ decay / Berry, T A (Surrey U.) ; Podolyák, Zs (Surrey U.) ; Carroll, R J (Surrey U.) ; Lică, R (CERN ; Bucharest, IFIN-HH) ; Brown, B A (Michigan State U.) ; Grawe, H (Darmstadt, GSI) ; Sotty, Ch (Bucharest, IFIN-HH ; Leuven U.) ; Timofeyuk, N K (Surrey U.) ; Alexander, T (Surrey U.) ; Andreyev, A N (York U., England) et al.
The $β$ decay of $^{207}$Hg into the single-proton-hole nucleus $^{207}$Tl has been studied through $γ$-ray spectroscopy at the ISOLDE Decay Station (IDS) with the aim of identifying states resulting from coupling of the $πs^{−1}_{1/2}, πd^{−1}_{3/2},$ and $πh^{−1}_{11/2}$ shell model orbitals to the collective octupole vibration. Twenty-two states were observed lying between 2.6 and 4.0 MeV, eleven of which were observed for the first time, and 78 new transitions were placed. [...]
2020 - 12 p. - Published in : Phys. Rev. C 101 (2020) 054311 Fulltext from publisher: PDF;
4.
Investigation of the $\Delta n = 0$ selection rule in Gamow-Teller transitions: The $\beta$-decay of $^{207}$Hg / Berry, T A (Surrey U.) ; Podolyák, Zs (Surrey U.) ; Carroll, R J (Surrey U.) ; Lică, R (CERN ; Bucharest, IFIN-HH) ; Grawe, H ; Timofeyuk, N K (Surrey U.) ; Alexander, T (Surrey U.) ; Andreyev, A N (York U., England) ; Ansari, S (Cologne U.) ; Borge, M J G (CERN ; Madrid, Inst. Estructura Materia) et al.
Gamow-Teller $\beta$ decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This $\Delta n=0$ requirement plays a major role in the $\beta$ decay of heavy neutron-rich nuclei, affecting the nucleosynthesis through the increased half-lives of nuclei on the astrophysical $r$-process pathway below both $Z=50$ (for $N>82$ ) and $Z=82$ (for $N>126$). [...]
2019 - 5 p. - Published in : Phys. Lett. B 793 (2019) 271-275 Article from SCOAP3: PDF;
5.
Change in structure between the $I  = 1/2$ states in $^{181}$Tl and $^{177,179}$Au / Cubiss, J G (York U., England ; CERN) ; Barzakh, A E (Kurchatov Inst., Moscow) ; Andreyev, A N (York U., England ; JAERI, Tokai ; CERN) ; Al Monthery, M (York U., England) ; Althubiti, N (Manchester U.) ; Andel, B (Comenius U.) ; Antalic, S (Comenius U.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Cocolios, T E (Leuven U. ; Manchester U. ; CERN) et al.
The first accurate measurements of the $\alpha$-decay branching ratio and half-life of the $I^{\pi}=1/2^+$ ground state in $^{181}$Tl have been made, along with the first determination of the magnetic moments and $I=1/2$ spin assignments of the ground states in $^{177,179}$Au. The results are discussed within the complementary systematics of the reduced $\alpha$-decay widths and nuclear $g$ factors of low-lying, $I^{\pi}=1/2^+$ states in the neutron-deficient lead region. [...]
2018 - 9 p. - Published in : Phys. Lett. B 786 (2018) 355-363 Article from SCOAP3: PDF;

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