Evidence for an Isomeric 3/2- State in 53Co

Dirk Rudolph; Robert Hoischen; Margareta Hellström; S Pietri; Zs Podolyak; P H Regan; A B Garnsworthy; S J Steer; F Becker; P Bednarczyk; L Caceres; P Doornenbal; J Gerl; M Gorska; J Grebosz; I Kojouharov; N Kurz; W Prokopowicz; H Schaffner; H J Wollersheim; Lise-Lotte Andersson; L Atanasova; D L Balabanski; M A Bentley; A Blazhev; C Brandau; J R Brown; Claes Fahlander; Emma Johansson; A Jungclaus

doi:10.1140/epja/i2008-10587-4

Evidence for an Isomeric 3/2- State in 53Co

Dirk Rudolph, Robert Hoischen, Margareta Hellström, S Pietri, Zs Podolyak, P H Regan, A B Garnsworthy, S J Steer, F Becker, P Bednarczyk, L Caceres, P Doornenbal, J Gerl, M Gorska, J Grebosz, I Kojouharov, N Kurz, W Prokopowicz, H Schaffner, H J WollersheimLise-Lotte Andersson, L Atanasova, D L Balabanski, M A Bentley, A Blazhev, C Brandau, J R Brown, Claes Fahlander, Emma Johansson, A Jungclaus

Institutionen för naturgeografi och ekosystemvetenskap

Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Sammanfattning

The fragmentation of a 550MeV/u primary beam of Ni-58 on a Be-9 target has been used to measure time-and energy-correlated gamma decays following the implantation of event-by-event discriminated secondary fragments into a Be-9 stopper plate. A new isomeric gamma decay with T-1/2 = 14(6 4) ns and E-gamma = 646.2(2) keV is observed and attributed to the decay of the yrast 3/2-state in Co-53(27)26. This short-lived isomeric state has been populated by means of nuclear reactions during the stopping process of the secondary fragments. The experimental findings are discussed in the framework of large-scale spherical shell model calculations in conjunction with isospin symmetry-breaking residual interactions for the A = 53, Tz = +/- 1/2 mirror nuclei Co-53 and Fe-53.

Originalspråk	engelska
Sidor (från-till)	131-138
Tidskrift	European Physical Journal A. Hadrons and Nuclei
Volym	36
Nummer	2
DOI	https://doi.org/10.1140/epja/i2008-10587-4
Status	Published - 2008

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10.1140/epja/i2008-10587-4

1 Doktorsavhandling (sammanläggning)

Isotope-Selective Spectroscopy: Fast Timing R&D and fp-Shell Mirror Isomers
Hoischen, R., 2011, Department of Physics, Lund University. 138 s.
Forskningsoutput: Avhandling › Doktorsavhandling (sammanläggning)

1 Avslutade

Isotope-selective Spectroscopy: Fast Timing R&D and fp-Shell Mirror Isomers
Hoischen, R. (Forskarstuderande), Rudolph, D. (Handledare), Golubev, P. (Biträdande handledare) & Gerl, J. (Biträdande handledare)
Kungliga Fysiografiska Sällskapet i Lund
2006/10/01 → 2011/03/31
Projekt: Avhandling

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Rudolph, D., Hoischen, R., Hellström, M., Pietri, S., Podolyak, Z., Regan, P. H., Garnsworthy, A. B., Steer, S. J., Becker, F., Bednarczyk, P., Caceres, L., Doornenbal, P., Gerl, J., Gorska, M., Grebosz, J., Kojouharov, I., Kurz, N., Prokopowicz, W., Schaffner, H., ... Jungclaus, A. (2008). Evidence for an Isomeric 3/2- State in 53Co. European Physical Journal A. Hadrons and Nuclei, 36(2), 131-138. https://doi.org/10.1140/epja/i2008-10587-4

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title = "Evidence for an Isomeric 3/2- State in 53Co",

abstract = "The fragmentation of a 550MeV/u primary beam of Ni-58 on a Be-9 target has been used to measure time-and energy-correlated gamma decays following the implantation of event-by-event discriminated secondary fragments into a Be-9 stopper plate. A new isomeric gamma decay with T-1/2 = 14(6 4) ns and E-gamma = 646.2(2) keV is observed and attributed to the decay of the yrast 3/2-state in Co-53(27)26. This short-lived isomeric state has been populated by means of nuclear reactions during the stopping process of the secondary fragments. The experimental findings are discussed in the framework of large-scale spherical shell model calculations in conjunction with isospin symmetry-breaking residual interactions for the A = 53, Tz = +/- 1/2 mirror nuclei Co-53 and Fe-53.",

author = "Dirk Rudolph and Robert Hoischen and Margareta Hellstr{\"o}m and S Pietri and Zs Podolyak and Regan, {P H} and Garnsworthy, {A B} and Steer, {S J} and F Becker and P Bednarczyk and L Caceres and P Doornenbal and J Gerl and M Gorska and J Grebosz and I Kojouharov and N Kurz and W Prokopowicz and H Schaffner and Wollersheim, {H J} and Lise-Lotte Andersson and L Atanasova and Balabanski, {D L} and Bentley, {M A} and A Blazhev and C Brandau and Brown, {J R} and Claes Fahlander and Emma Johansson and A Jungclaus",

year = "2008",

doi = "10.1140/epja/i2008-10587-4",

language = "English",

volume = "36",

pages = "131--138",

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

issn = "1434-6001",

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Rudolph, D, Hoischen, R, Hellström, M, Pietri, S, Podolyak, Z, Regan, PH, Garnsworthy, AB, Steer, SJ, Becker, F, Bednarczyk, P, Caceres, L, Doornenbal, P, Gerl, J, Gorska, M, Grebosz, J, Kojouharov, I, Kurz, N, Prokopowicz, W, Schaffner, H, Wollersheim, HJ, Andersson, L-L, Atanasova, L, Balabanski, DL, Bentley, MA, Blazhev, A, Brandau, C, Brown, JR, Fahlander, C, Johansson, E & Jungclaus, A 2008, 'Evidence for an Isomeric 3/2- State in 53Co', European Physical Journal A. Hadrons and Nuclei, vol. 36, nr. 2, s. 131-138. https://doi.org/10.1140/epja/i2008-10587-4

TY - JOUR

T1 - Evidence for an Isomeric 3/2- State in 53Co

AU - Rudolph, Dirk

AU - Hoischen, Robert

AU - Hellström, Margareta

AU - Pietri, S

AU - Podolyak, Zs

AU - Regan, P H

AU - Garnsworthy, A B

AU - Steer, S J

AU - Becker, F

AU - Bednarczyk, P

AU - Caceres, L

AU - Doornenbal, P

AU - Gerl, J

AU - Gorska, M

AU - Grebosz, J

AU - Kojouharov, I

AU - Kurz, N

AU - Prokopowicz, W

AU - Schaffner, H

AU - Wollersheim, H J

AU - Andersson, Lise-Lotte

AU - Atanasova, L

AU - Balabanski, D L

AU - Bentley, M A

AU - Blazhev, A

AU - Brandau, C

AU - Brown, J R

AU - Fahlander, Claes

AU - Johansson, Emma

AU - Jungclaus, A

PY - 2008

Y1 - 2008

N2 - The fragmentation of a 550MeV/u primary beam of Ni-58 on a Be-9 target has been used to measure time-and energy-correlated gamma decays following the implantation of event-by-event discriminated secondary fragments into a Be-9 stopper plate. A new isomeric gamma decay with T-1/2 = 14(6 4) ns and E-gamma = 646.2(2) keV is observed and attributed to the decay of the yrast 3/2-state in Co-53(27)26. This short-lived isomeric state has been populated by means of nuclear reactions during the stopping process of the secondary fragments. The experimental findings are discussed in the framework of large-scale spherical shell model calculations in conjunction with isospin symmetry-breaking residual interactions for the A = 53, Tz = +/- 1/2 mirror nuclei Co-53 and Fe-53.

AB - The fragmentation of a 550MeV/u primary beam of Ni-58 on a Be-9 target has been used to measure time-and energy-correlated gamma decays following the implantation of event-by-event discriminated secondary fragments into a Be-9 stopper plate. A new isomeric gamma decay with T-1/2 = 14(6 4) ns and E-gamma = 646.2(2) keV is observed and attributed to the decay of the yrast 3/2-state in Co-53(27)26. This short-lived isomeric state has been populated by means of nuclear reactions during the stopping process of the secondary fragments. The experimental findings are discussed in the framework of large-scale spherical shell model calculations in conjunction with isospin symmetry-breaking residual interactions for the A = 53, Tz = +/- 1/2 mirror nuclei Co-53 and Fe-53.

U2 - 10.1140/epja/i2008-10587-4

DO - 10.1140/epja/i2008-10587-4

M3 - Article

SN - 1434-6001

VL - 36

SP - 131

EP - 138

JO - European Physical Journal A. Hadrons and Nuclei

JF - European Physical Journal A. Hadrons and Nuclei

IS - 2

ER -

Evidence for an Isomeric 3/2- State in 53Co

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Isotope-Selective Spectroscopy: Fast Timing R&D and fp-Shell Mirror Isomers

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Isotope-selective Spectroscopy: Fast Timing R&D and fp-Shell Mirror Isomers

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