New structure information on Mg-30, Mg-31 and Mg-32

H Mach; LM Fraile; O Tengblad; R Boutami; C Jollet; WA Plociennik; DT Yordanov; M Stanoiu; MJG Borge; PA Butler; Joakim Cederkäll; P Dessagne; B Fogelberg; H Fynbo; P Hoff; A Jokinen; A Korgul; U Koster; W Kurcewicz; F Marechal; T Motobayashi; J Mrazek; G Neyens; T Nilsson; S Pedersen; A Poves; B Rubio; E Ruchowska

doi:10.1140/epjad/i2005-06-159-0

New structure information on Mg-30, Mg-31 and Mg-32

H Mach, LM Fraile, O Tengblad, R Boutami, C Jollet, WA Plociennik, DT Yordanov, M Stanoiu, MJG Borge, PA Butler, Joakim Cederkäll, P Dessagne, B Fogelberg, H Fynbo, P Hoff, A Jokinen, A Korgul, U Koster, W Kurcewicz, F MarechalT Motobayashi, J Mrazek, G Neyens, T Nilsson, S Pedersen, A Poves, B Rubio, E Ruchowska

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Abstract

The fast timing beta gamma gamma(t) method was applied to investigate the level lifetimes in Mg-30,Mg-31,Mg-32. Levels in Mg have been populated in beta and beta-delayed neutron emission of Na, at the ISOLDE facility. From the gamma gamma coincidences a number of new states have been identified and new level schemes were constructed for 30 31,32 Mg. The following preliminary half lives have been determined: T-1/2 = 3.9(4) ns for the 1789 keV state in Mg-30, T-1/2 = 133(8) ps and 10.5(8) us for the 221 keV and 461 keV states in Mg-31, respectively, and T1/2 = 16(4) ps for the 885 keV level in 32Mg. The 1789 keV level was established as a candidate for the intruder 0(+) configuration in Mg-30 with a possible strong E0 branch to the ground state.

Original language	English
Pages (from-to)	105-109
Journal	European Physical Journal A. Hadrons and Nuclei
Volume	25
Issue number	Suppl 1
DOIs	https://doi.org/10.1140/epjad/i2005-06-159-0
Publication status	Published - 2005

Subject classification (UKÄ)

Subatomic Physics

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10.1140/epjad/i2005-06-159-0

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Mach, H., Fraile, LM., Tengblad, O., Boutami, R., Jollet, C., Plociennik, WA., Yordanov, DT., Stanoiu, M., Borge, MJG., Butler, PA., Cederkäll, J., Dessagne, P., Fogelberg, B., Fynbo, H., Hoff, P., Jokinen, A., Korgul, A., Koster, U., Kurcewicz, W., ... Ruchowska, E. (2005). New structure information on Mg-30, Mg-31 and Mg-32. European Physical Journal A. Hadrons and Nuclei, 25(Suppl 1), 105-109. https://doi.org/10.1140/epjad/i2005-06-159-0

@article{57ea2f021b124297affaa62c435223db,

title = "New structure information on Mg-30, Mg-31 and Mg-32",

abstract = "The fast timing beta gamma gamma(t) method was applied to investigate the level lifetimes in Mg-30,Mg-31,Mg-32. Levels in Mg have been populated in beta and beta-delayed neutron emission of Na, at the ISOLDE facility. From the gamma gamma coincidences a number of new states have been identified and new level schemes were constructed for 30 31,32 Mg. The following preliminary half lives have been determined: T-1/2 = 3.9(4) ns for the 1789 keV state in Mg-30, T-1/2 = 133(8) ps and 10.5(8) us for the 221 keV and 461 keV states in Mg-31, respectively, and T1/2 = 16(4) ps for the 885 keV level in 32Mg. The 1789 keV level was established as a candidate for the intruder 0(+) configuration in Mg-30 with a possible strong E0 branch to the ground state.",

author = "H Mach and LM Fraile and O Tengblad and R Boutami and C Jollet and WA Plociennik and DT Yordanov and M Stanoiu and MJG Borge and PA Butler and Joakim Cederk{\"a}ll and P Dessagne and B Fogelberg and H Fynbo and P Hoff and A Jokinen and A Korgul and U Koster and W Kurcewicz and F Marechal and T Motobayashi and J Mrazek and G Neyens and T Nilsson and S Pedersen and A Poves and B Rubio and E Ruchowska",

year = "2005",

doi = "10.1140/epjad/i2005-06-159-0",

language = "English",

volume = "25",

pages = "105--109",

journal = "European Physical Journal A. Hadrons and Nuclei",

issn = "1434-6001",

publisher = "Springer",

number = "Suppl 1",

}

Mach, H, Fraile, LM, Tengblad, O, Boutami, R, Jollet, C, Plociennik, WA, Yordanov, DT, Stanoiu, M, Borge, MJG, Butler, PA, Cederkäll, J, Dessagne, P, Fogelberg, B, Fynbo, H, Hoff, P, Jokinen, A, Korgul, A, Koster, U, Kurcewicz, W, Marechal, F, Motobayashi, T, Mrazek, J, Neyens, G, Nilsson, T, Pedersen, S, Poves, A, Rubio, B & Ruchowska, E 2005, 'New structure information on Mg-30, Mg-31 and Mg-32', European Physical Journal A. Hadrons and Nuclei, vol. 25, no. Suppl 1, pp. 105-109. https://doi.org/10.1140/epjad/i2005-06-159-0

TY - JOUR

T1 - New structure information on Mg-30, Mg-31 and Mg-32

AU - Mach, H

AU - Fraile, LM

AU - Tengblad, O

AU - Boutami, R

AU - Jollet, C

AU - Plociennik, WA

AU - Yordanov, DT

AU - Stanoiu, M

AU - Borge, MJG

AU - Butler, PA

AU - Cederkäll, Joakim

AU - Dessagne, P

AU - Fogelberg, B

AU - Fynbo, H

AU - Hoff, P

AU - Jokinen, A

AU - Korgul, A

AU - Koster, U

AU - Kurcewicz, W

AU - Marechal, F

AU - Motobayashi, T

AU - Mrazek, J

AU - Neyens, G

AU - Nilsson, T

AU - Pedersen, S

AU - Poves, A

AU - Rubio, B

AU - Ruchowska, E

PY - 2005

Y1 - 2005

N2 - The fast timing beta gamma gamma(t) method was applied to investigate the level lifetimes in Mg-30,Mg-31,Mg-32. Levels in Mg have been populated in beta and beta-delayed neutron emission of Na, at the ISOLDE facility. From the gamma gamma coincidences a number of new states have been identified and new level schemes were constructed for 30 31,32 Mg. The following preliminary half lives have been determined: T-1/2 = 3.9(4) ns for the 1789 keV state in Mg-30, T-1/2 = 133(8) ps and 10.5(8) us for the 221 keV and 461 keV states in Mg-31, respectively, and T1/2 = 16(4) ps for the 885 keV level in 32Mg. The 1789 keV level was established as a candidate for the intruder 0(+) configuration in Mg-30 with a possible strong E0 branch to the ground state.

AB - The fast timing beta gamma gamma(t) method was applied to investigate the level lifetimes in Mg-30,Mg-31,Mg-32. Levels in Mg have been populated in beta and beta-delayed neutron emission of Na, at the ISOLDE facility. From the gamma gamma coincidences a number of new states have been identified and new level schemes were constructed for 30 31,32 Mg. The following preliminary half lives have been determined: T-1/2 = 3.9(4) ns for the 1789 keV state in Mg-30, T-1/2 = 133(8) ps and 10.5(8) us for the 221 keV and 461 keV states in Mg-31, respectively, and T1/2 = 16(4) ps for the 885 keV level in 32Mg. The 1789 keV level was established as a candidate for the intruder 0(+) configuration in Mg-30 with a possible strong E0 branch to the ground state.

U2 - 10.1140/epjad/i2005-06-159-0

DO - 10.1140/epjad/i2005-06-159-0

M3 - Article

SN - 1434-6001

VL - 25

SP - 105

EP - 109

JO - European Physical Journal A. Hadrons and Nuclei

JF - European Physical Journal A. Hadrons and Nuclei

IS - Suppl 1

ER -

New structure information on Mg-30, Mg-31 and Mg-32

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