β decay of148Dy: Study of the Gamow-Teller giant state by means of total absorption spectroscopy

A. Algora; E. Nácher; B. Rubio; D. Cano-Ott; J. L. Taín; A. Gadea; J. Agramunt; M. Karny; Z. Janas; K. Rykaczewski; R. Collatz; M. Hellström; Z. Hu; R. Kirchner; E. Roeckl; M. Shibata; L. Batist; F. Moroz; V. Wittmann

doi:10.1103/PhysRevC.70.064301

β decay of¹⁴⁸Dy: Study of the Gamow-Teller giant state by means of total absorption spectroscopy

A. Algora, E. Nácher, B. Rubio, D. Cano-Ott, J. L. Taín, A. Gadea, J. Agramunt, M. Karny, Z. Janas, K. Rykaczewski, R. Collatz, M. Hellström, Z. Hu, R. Kirchner, E. Roeckl, M. Shibata, L. Batist, F. Moroz, V. Wittmann

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Abstract

The γ-cascades following the Gamow Teller beta decay of ¹⁴⁸Dy 0⁺ have been investigated with the total absorption gamma spectrometer at GSI. Our measurements confirm that the Gamow-Teller resonant state is populated with a logft=3.9 and that there is very little mixing of this state with the background J=1 states. In contrast to previous measurements, the experimental method presented here is sensitive to very small admixtures at high excitation energy. Previously unobserved, weak beta-branches to levels in ¹⁴⁸Tb are also reported.

Original language	English
Article number	064301
Pages (from-to)	064301-1-064301-5
Journal	Physical Review C - Nuclear Physics
Volume	70
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.70.064301
State	Published - Dec 2004

Funding

The authors thank Professor Peter Kleinheinz for many useful discussions. This work was partially supported by C.I.C.Y.T (Spain) under Contract No. FPA 2002-04181-C04-03, by C.S.R. (Poland) Grant No. KBN-2Pp03B-039-13, by R.F.B.R-D.F.G (Germany) Contract No. 436 RUS 113/201/0(R), and by the EC Contracts Nos. HPMF-CT-1999-00394, MERG-CT-2004-506849.

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Algora, A., Nácher, E., Rubio, B., Cano-Ott, D., Taín, J. L., Gadea, A., Agramunt, J., Karny, M., Janas, Z., Rykaczewski, K., Collatz, R., Hellström, M., Hu, Z., Kirchner, R., Roeckl, E., Shibata, M., Batist, L., Moroz, F., & Wittmann, V. (2004). β decay of¹⁴⁸Dy: Study of the Gamow-Teller giant state by means of total absorption spectroscopy. Physical Review C - Nuclear Physics, 70(6), 064301-1-064301-5. Article 064301. https://doi.org/10.1103/PhysRevC.70.064301

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title = "β decay of148Dy: Study of the Gamow-Teller giant state by means of total absorption spectroscopy",

abstract = "The γ-cascades following the Gamow Teller beta decay of 148Dy 0+ have been investigated with the total absorption gamma spectrometer at GSI. Our measurements confirm that the Gamow-Teller resonant state is populated with a logft=3.9 and that there is very little mixing of this state with the background J=1 states. In contrast to previous measurements, the experimental method presented here is sensitive to very small admixtures at high excitation energy. Previously unobserved, weak beta-branches to levels in 148Tb are also reported.",

author = "A. Algora and E. N{\'a}cher and B. Rubio and D. Cano-Ott and Ta{\'i}n, {J. L.} and A. Gadea and J. Agramunt and M. Karny and Z. Janas and K. Rykaczewski and R. Collatz and M. Hellstr{\"o}m and Z. Hu and R. Kirchner and E. Roeckl and M. Shibata and L. Batist and F. Moroz and V. Wittmann",

year = "2004",

month = dec,

doi = "10.1103/PhysRevC.70.064301",

language = "English",

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journal = "Physical Review C - Nuclear Physics",

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Algora, A, Nácher, E, Rubio, B, Cano-Ott, D, Taín, JL, Gadea, A, Agramunt, J, Karny, M, Janas, Z, Rykaczewski, K, Collatz, R, Hellström, M, Hu, Z, Kirchner, R, Roeckl, E, Shibata, M, Batist, L, Moroz, F & Wittmann, V 2004, 'β decay of¹⁴⁸Dy: Study of the Gamow-Teller giant state by means of total absorption spectroscopy', Physical Review C - Nuclear Physics, vol. 70, no. 6, 064301, pp. 064301-1-064301-5. https://doi.org/10.1103/PhysRevC.70.064301

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T2 - Study of the Gamow-Teller giant state by means of total absorption spectroscopy

AU - Algora, A.

AU - Nácher, E.

AU - Rubio, B.

AU - Cano-Ott, D.

AU - Taín, J. L.

AU - Gadea, A.

AU - Agramunt, J.

AU - Karny, M.

AU - Janas, Z.

AU - Rykaczewski, K.

AU - Collatz, R.

AU - Hellström, M.

AU - Hu, Z.

AU - Kirchner, R.

AU - Roeckl, E.

AU - Shibata, M.

AU - Batist, L.

AU - Moroz, F.

AU - Wittmann, V.

PY - 2004/12

Y1 - 2004/12

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AB - The γ-cascades following the Gamow Teller beta decay of 148Dy 0+ have been investigated with the total absorption gamma spectrometer at GSI. Our measurements confirm that the Gamow-Teller resonant state is populated with a logft=3.9 and that there is very little mixing of this state with the background J=1 states. In contrast to previous measurements, the experimental method presented here is sensitive to very small admixtures at high excitation energy. Previously unobserved, weak beta-branches to levels in 148Tb are also reported.

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ER -

β decay of¹⁴⁸Dy: Study of the Gamow-Teller giant state by means of total absorption spectroscopy

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