High-spin states of 218Th

D O'Donnell; R D Page; T Grahn; F A Ali; K Auranen; L Capponi; R J Carroll; M M R Chishti; M C Drummond; P T Greenlees; J Henderson; A Herzan; U Jakobsson; D T Joss; R Julin; S Juutinen; J Konki; M Labiche; M Leino; P J R Mason; C G McPeake; J Pakarinen; P Papadakis; J Partanen; P Peura; P Rahkila; J Revill; P Ruotsalainen; M Sandzelius; J Sarén; B Saygi; C Scholey; J Simpson; J F Smith; M Smolen; J Sorri; S Stolze; C M Sullivan; A Thornthwaite; J Uusitalo; A Kumar; P C Srivastava

doi:10.1088/1361-6471/aba16c

High-spin states of ²¹⁸Th

D O'Donnell^*, R D Page, T Grahn, F A Ali, K Auranen, L Capponi, R J Carroll, M M R Chishti, M C Drummond, P T Greenlees, J Henderson, A Herzan, U Jakobsson, D T Joss, R Julin, S Juutinen, J Konki, M Labiche, M Leino, P J R MasonC G McPeake, J Pakarinen, P Papadakis, J Partanen, P Peura, P Rahkila, J Revill, P Ruotsalainen, M Sandzelius, J Sarén, B Saygi, C Scholey, J Simpson, J F Smith, M Smolen, J Sorri, S Stolze, C M Sullivan, A Thornthwaite, J Uusitalo, A Kumar, P C Srivastava

^*Corresponding author for this work

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Abstract

High-spin states in the N = 128 nucleus ²¹⁸Th have been investigated following fusion–evaporation reactions, using the recoil-decay tagging technique. Due to the short-lived nature of the ground state of ²¹⁸Th prompt γ rays have been correlated with the α decay of the daughter nucleus ²¹⁴Ra. The level scheme representing the decay of excited states has been extended to (16⁺) with the observation of six previously unreported transitions. The observations are compared with the results of shell model calculations and within the context of the systematics of neighbouring nuclei.

Original language	English
Article number	095103
Pages (from-to)	1-12
Number of pages	12
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	47
Issue number	9
Early online date	30 Jun 2020
DOIs	https://doi.org/10.1088/1361-6471/aba16c
Publication status	Published - 4 Aug 2020

Keywords

high-spin states
fusion-evaporation
nuclei

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10.1088/1361-6471/aba16cLicence: CC BY

2020 06 30 O'Donnell et al High-spin finalFinal published version, 1.8 MBLicence: CC BY

Cite this

O'Donnell, D., Page, R. D., Grahn, T., Ali, F. A., Auranen, K., Capponi, L., Carroll, R. J., Chishti, M. M. R., Drummond, M. C., Greenlees, P. T., Henderson, J., Herzan, A., Jakobsson, U., Joss, D. T., Julin, R., Juutinen, S., Konki, J., Labiche, M., Leino, M., ... Srivastava, P. C. (2020). High-spin states of ²¹⁸Th. Journal of Physics G: Nuclear and Particle Physics, 47(9), 1-12. Article 095103. https://doi.org/10.1088/1361-6471/aba16c

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abstract = "High-spin states in the N = 128 nucleus 218Th have been investigated following fusion–evaporation reactions, using the recoil-decay tagging technique. Due to the short-lived nature of the ground state of 218Th prompt γ rays have been correlated with the α decay of the daughter nucleus 214Ra. The level scheme representing the decay of excited states has been extended to (16+) with the observation of six previously unreported transitions. The observations are compared with the results of shell model calculations and within the context of the systematics of neighbouring nuclei.",

keywords = "high-spin states, fusion-evaporation, nuclei",

author = "D O'Donnell and Page, {R D} and T Grahn and Ali, {F A} and K Auranen and L Capponi and Carroll, {R J} and Chishti, {M M R} and Drummond, {M C} and Greenlees, {P T} and J Henderson and A Herzan and U Jakobsson and Joss, {D T} and R Julin and S Juutinen and J Konki and M Labiche and M Leino and Mason, {P J R} and McPeake, {C G} and J Pakarinen and P Papadakis and J Partanen and P Peura and P Rahkila and J Revill and P Ruotsalainen and M Sandzelius and J Sar{\'e}n and B Saygi and C Scholey and J Simpson and Smith, {J F} and M Smolen and J Sorri and S Stolze and Sullivan, {C M} and A Thornthwaite and J Uusitalo and A Kumar and Srivastava, {P C}",

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doi = "10.1088/1361-6471/aba16c",

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O'Donnell, D, Page, RD, Grahn, T, Ali, FA, Auranen, K, Capponi, L, Carroll, RJ, Chishti, MMR, Drummond, MC, Greenlees, PT, Henderson, J, Herzan, A, Jakobsson, U, Joss, DT, Julin, R, Juutinen, S, Konki, J, Labiche, M, Leino, M, Mason, PJR, McPeake, CG, Pakarinen, J, Papadakis, P, Partanen, J, Peura, P, Rahkila, P, Revill, J, Ruotsalainen, P, Sandzelius, M, Sarén, J, Saygi, B, Scholey, C, Simpson, J, Smith, JF, Smolen, M, Sorri, J, Stolze, S, Sullivan, CM, Thornthwaite, A, Uusitalo, J, Kumar, A & Srivastava, PC 2020, 'High-spin states of ²¹⁸Th', Journal of Physics G: Nuclear and Particle Physics, vol. 47, no. 9, 095103, pp. 1-12. https://doi.org/10.1088/1361-6471/aba16c

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T1 - High-spin states of 218Th

AU - O'Donnell, D

AU - Page, R D

AU - Grahn, T

AU - Ali, F A

AU - Auranen, K

AU - Capponi, L

AU - Carroll, R J

AU - Chishti, M M R

AU - Drummond, M C

AU - Greenlees, P T

AU - Henderson, J

AU - Herzan, A

AU - Jakobsson, U

AU - Joss, D T

AU - Julin, R

AU - Juutinen, S

AU - Konki, J

AU - Labiche, M

AU - Leino, M

AU - Mason, P J R

AU - McPeake, C G

AU - Pakarinen, J

AU - Papadakis, P

AU - Partanen, J

AU - Peura, P

AU - Rahkila, P

AU - Revill, J

AU - Ruotsalainen, P

AU - Sandzelius, M

AU - Sarén, J

AU - Saygi, B

AU - Scholey, C

AU - Simpson, J

AU - Smith, J F

AU - Smolen, M

AU - Sorri, J

AU - Stolze, S

AU - Sullivan, C M

AU - Thornthwaite, A

AU - Uusitalo, J

AU - Kumar, A

AU - Srivastava, P C

PY - 2020/8/4

Y1 - 2020/8/4

N2 - High-spin states in the N = 128 nucleus 218Th have been investigated following fusion–evaporation reactions, using the recoil-decay tagging technique. Due to the short-lived nature of the ground state of 218Th prompt γ rays have been correlated with the α decay of the daughter nucleus 214Ra. The level scheme representing the decay of excited states has been extended to (16+) with the observation of six previously unreported transitions. The observations are compared with the results of shell model calculations and within the context of the systematics of neighbouring nuclei.

AB - High-spin states in the N = 128 nucleus 218Th have been investigated following fusion–evaporation reactions, using the recoil-decay tagging technique. Due to the short-lived nature of the ground state of 218Th prompt γ rays have been correlated with the α decay of the daughter nucleus 214Ra. The level scheme representing the decay of excited states has been extended to (16+) with the observation of six previously unreported transitions. The observations are compared with the results of shell model calculations and within the context of the systematics of neighbouring nuclei.

KW - high-spin states

KW - fusion-evaporation

KW - nuclei

U2 - 10.1088/1361-6471/aba16c

DO - 10.1088/1361-6471/aba16c

M3 - Article

SN - 0954-3899

VL - 47

SP - 1

EP - 12

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

IS - 9

M1 - 095103

ER -