Measurement of the 2+→0+ ground-state transition in the β decay of F 20

O. S. Kirsebom; M. Hukkanen; Anu Kankainen; W. H. Trzaska; D. F. Stroemberg; G. Martinez-Pined; K. Andersen; E. Bodewits; B. A. Brown; L. Canete; J. Cederkall; T. Enqvist; Tommi Eronen; H. O. U. Fynbo; S. Geldhof; R. de Groote; D. G. Jenkins; Ari Jokinen; P. Joshi; A. Khanam; Joel Kostensalo; Pasi Kuusiniemi; K. Langanke; Iain Moore; M. Munch; D. A. Nesterenko; J. D. Ovejas; H. Penttilä; Tapio Pohjalainen; M. Reponen; S. Rinta-Antila; K. Riisager; A. de Roubin; P. Schotanus; P. C. Srivastava; Jouni Suhonen; J. A. Swartz; O. Tengblad; M. Vilen; S. Vinals; J. Aysto

doi:10.1103/PhysRevC.100.065805

Measurement of the 2+→0+ ground-state transition in the β decay of F 20

O. S. Kirsebom^*, M. Hukkanen, Anu Kankainen, W. H. Trzaska, D. F. Stroemberg, G. Martinez-Pined, K. Andersen, E. Bodewits, B. A. Brown, L. Canete, J. Cederkall, T. Enqvist, Tommi Eronen, H. O. U. Fynbo, S. Geldhof, R. de Groote, D. G. Jenkins, Ari Jokinen, P. Joshi, A. KhanamJoel Kostensalo, Pasi Kuusiniemi, K. Langanke, Iain Moore, M. Munch, D. A. Nesterenko, J. D. Ovejas, H. Penttilä, Tapio Pohjalainen, M. Reponen, S. Rinta-Antila, K. Riisager, A. de Roubin, P. Schotanus, P. C. Srivastava, Jouni Suhonen, J. A. Swartz, O. Tengblad, M. Vilen, S. Vinals, J. Aysto

^*Tämän työn vastaava kirjoittaja

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Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

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We report the first detection of the second-forbidden, nonunique, 2(+) -> 0(+), ground-state transition in the beta decay of F-20. A low-energy, mass-separated F-20(+) beam produced at the IGISOL facility in Jyvaskyla, Finland, was implanted in a thin carbon foil and the beta spectrum measured using a magnetic transporter and a plastic-scintillator detector. The beta-decay branching ratio inferred from the measurement is b(beta) = [0.41 +/- 0.08(stat) +/- 0.07(sys)] x 10(-5) corresponding to log ft = 10.89(11), making this one of the strongest second-forbidden, nonunique beta transitions ever measured. The experimental result is supported by shell-model calculations and has significant implications for the final evolution of stars that develop degenerate oxygen-neon cores. Using the new experimental data, we argue that the astrophysical electron-capture rate on Ne-20 is now known to within better than 25% at the relevant temperatures and densities.

Alkuperäiskieli	Englanti
Artikkeli	065805
Sivut	1-12
Sivumäärä	12
Julkaisu	PHYSICAL REVIEW C
Vuosikerta	100
Numero	6
DOI - pysyväislinkit	https://doi.org/10.1103/PhysRevC.100.065805 https://doi.org/10.1103/PhysRevC.100.065805 https://doi.org/https://converis.jyu.fi/converis/portal/detail/Publication/34168839?lang=en_GB
Tila	Julkaistu - 24 jouluk. 2019
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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PhysRevC.100.065805Final published version, 4,7 MB

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Physical Review C

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Kirsebom, O. S., Hukkanen, M., Kankainen, A., Trzaska, W. H., Stroemberg, D. F., Martinez-Pined, G., Andersen, K., Bodewits, E., Brown, B. A., Canete, L., Cederkall, J., Enqvist, T., Eronen, T., Fynbo, H. O. U., Geldhof, S., de Groote, R., Jenkins, D. G., Jokinen, A., Joshi, P., ... Aysto, J. (2019). Measurement of the 2+→0+ ground-state transition in the β decay of F 20. PHYSICAL REVIEW C, 100(6), 1-12. Artikkeli 065805. https://doi.org/10.1103/PhysRevC.100.065805, https://doi.org/10.1103/PhysRevC.100.065805, https://doi.org/https://converis.jyu.fi/converis/portal/detail/Publication/34168839?lang=en_GB

@article{4d3057fbc07d4dbdae84b138b8c3a19a,

title = "Measurement of the 2+→0+ ground-state transition in the β decay of F 20",

abstract = "We report the first detection of the second-forbidden, nonunique, 2(+) -> 0(+), ground-state transition in the beta decay of F-20. A low-energy, mass-separated F-20(+) beam produced at the IGISOL facility in Jyvaskyla, Finland, was implanted in a thin carbon foil and the beta spectrum measured using a magnetic transporter and a plastic-scintillator detector. The beta-decay branching ratio inferred from the measurement is b(beta) = [0.41 +/- 0.08(stat) +/- 0.07(sys)] x 10(-5) corresponding to log ft = 10.89(11), making this one of the strongest second-forbidden, nonunique beta transitions ever measured. The experimental result is supported by shell-model calculations and has significant implications for the final evolution of stars that develop degenerate oxygen-neon cores. Using the new experimental data, we argue that the astrophysical electron-capture rate on Ne-20 is now known to within better than 25% at the relevant temperatures and densities.",

keywords = "ELEMENTS",

author = "Kirsebom, {O. S.} and M. Hukkanen and Anu Kankainen and Trzaska, {W. H.} and Stroemberg, {D. F.} and G. Martinez-Pined and K. Andersen and E. Bodewits and Brown, {B. A.} and L. Canete and J. Cederkall and T. Enqvist and Tommi Eronen and Fynbo, {H. O. U.} and S. Geldhof and {de Groote}, R. and Jenkins, {D. G.} and Ari Jokinen and P. Joshi and A. Khanam and Joel Kostensalo and Pasi Kuusiniemi and K. Langanke and Iain Moore and M. Munch and Nesterenko, {D. A.} and Ovejas, {J. D.} and H. Penttil{\"a} and Tapio Pohjalainen and M. Reponen and S. Rinta-Antila and K. Riisager and {de Roubin}, A. and P. Schotanus and Srivastava, {P. C.} and Jouni Suhonen and Swartz, {J. A.} and O. Tengblad and M. Vilen and S. Vinals and J. Aysto",

note = "| openaire: EC/H2020/654002/EU//ENSAR2 ",

year = "2019",

month = dec,

day = "24",

doi = "10.1103/PhysRevC.100.065805",

language = "English",

volume = "100",

pages = "1--12",

journal = "PHYSICAL REVIEW C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

}

Kirsebom, OS, Hukkanen, M, Kankainen, A, Trzaska, WH, Stroemberg, DF, Martinez-Pined, G, Andersen, K, Bodewits, E, Brown, BA, Canete, L, Cederkall, J, Enqvist, T, Eronen, T, Fynbo, HOU, Geldhof, S, de Groote, R, Jenkins, DG, Jokinen, A, Joshi, P, Khanam, A, Kostensalo, J, Kuusiniemi, P, Langanke, K, Moore, I, Munch, M, Nesterenko, DA, Ovejas, JD, Penttilä, H, Pohjalainen, T, Reponen, M, Rinta-Antila, S, Riisager, K, de Roubin, A, Schotanus, P, Srivastava, PC, Suhonen, J, Swartz, JA, Tengblad, O, Vilen, M, Vinals, S & Aysto, J 2019, 'Measurement of the 2+→0+ ground-state transition in the β decay of F 20', PHYSICAL REVIEW C, Vuosikerta 100, Nro 6, 065805, Sivut 1-12. https://doi.org/10.1103/PhysRevC.100.065805, https://doi.org/10.1103/PhysRevC.100.065805, https://doi.org/https://converis.jyu.fi/converis/portal/detail/Publication/34168839?lang=en_GB

TY - JOUR

T1 - Measurement of the 2+→0+ ground-state transition in the β decay of F 20

AU - Kirsebom, O. S.

AU - Hukkanen, M.

AU - Kankainen, Anu

AU - Trzaska, W. H.

AU - Stroemberg, D. F.

AU - Martinez-Pined, G.

AU - Andersen, K.

AU - Bodewits, E.

AU - Brown, B. A.

AU - Canete, L.

AU - Cederkall, J.

AU - Enqvist, T.

AU - Eronen, Tommi

AU - Fynbo, H. O. U.

AU - Geldhof, S.

AU - de Groote, R.

AU - Jenkins, D. G.

AU - Jokinen, Ari

AU - Joshi, P.

AU - Khanam, A.

AU - Kostensalo, Joel

AU - Kuusiniemi, Pasi

AU - Langanke, K.

AU - Moore, Iain

AU - Munch, M.

AU - Nesterenko, D. A.

AU - Ovejas, J. D.

AU - Penttilä, H.

AU - Pohjalainen, Tapio

AU - Reponen, M.

AU - Rinta-Antila, S.

AU - Riisager, K.

AU - de Roubin, A.

AU - Schotanus, P.

AU - Srivastava, P. C.

AU - Suhonen, Jouni

AU - Swartz, J. A.

AU - Tengblad, O.

AU - Vilen, M.

AU - Vinals, S.

AU - Aysto, J.

N1 - | openaire: EC/H2020/654002/EU//ENSAR2

PY - 2019/12/24

Y1 - 2019/12/24

N2 - We report the first detection of the second-forbidden, nonunique, 2(+) -> 0(+), ground-state transition in the beta decay of F-20. A low-energy, mass-separated F-20(+) beam produced at the IGISOL facility in Jyvaskyla, Finland, was implanted in a thin carbon foil and the beta spectrum measured using a magnetic transporter and a plastic-scintillator detector. The beta-decay branching ratio inferred from the measurement is b(beta) = [0.41 +/- 0.08(stat) +/- 0.07(sys)] x 10(-5) corresponding to log ft = 10.89(11), making this one of the strongest second-forbidden, nonunique beta transitions ever measured. The experimental result is supported by shell-model calculations and has significant implications for the final evolution of stars that develop degenerate oxygen-neon cores. Using the new experimental data, we argue that the astrophysical electron-capture rate on Ne-20 is now known to within better than 25% at the relevant temperatures and densities.

AB - We report the first detection of the second-forbidden, nonunique, 2(+) -> 0(+), ground-state transition in the beta decay of F-20. A low-energy, mass-separated F-20(+) beam produced at the IGISOL facility in Jyvaskyla, Finland, was implanted in a thin carbon foil and the beta spectrum measured using a magnetic transporter and a plastic-scintillator detector. The beta-decay branching ratio inferred from the measurement is b(beta) = [0.41 +/- 0.08(stat) +/- 0.07(sys)] x 10(-5) corresponding to log ft = 10.89(11), making this one of the strongest second-forbidden, nonunique beta transitions ever measured. The experimental result is supported by shell-model calculations and has significant implications for the final evolution of stars that develop degenerate oxygen-neon cores. Using the new experimental data, we argue that the astrophysical electron-capture rate on Ne-20 is now known to within better than 25% at the relevant temperatures and densities.

KW - ELEMENTS

UR - https://journals.aps.org/prc/abstract/10.1103/PhysRevC.100.065805

U2 - 10.1103/PhysRevC.100.065805

DO - 10.1103/PhysRevC.100.065805

M3 - Article

SN - 2469-9985

VL - 100

SP - 1

EP - 12

JO - PHYSICAL REVIEW C

JF - PHYSICAL REVIEW C

IS - 6

M1 - 065805

ER -

Measurement of the 2+→0+ ground-state transition in the β decay of F 20

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