Universität zu Köln

Berry, T. A., Podolyak, Zs, Carroll, R. J., Lica, R., Grawe, H., Timofeyuk, N. K., Alexander, T., Andreyev, A. N., Ansari, S., Borge, M. J. G., Creswell, J., Fahlander, C., Fraile, L. M., Fynbo, H. O. U., Gelletly, W., Gerst, R-b, Gorska, M., Gredley, A., Greenlees, R., Harkness-Brennan, L. J., Huyse, M., Judge, S. M., Judson, D. S., Konki, J., Kurcewicz, J., Kuti, I, Lalkovski, S., Lazarus, I, Lund, M., Madurga, M., Marginean, N., Marginean, R., Marroquin, I, Mihai, C., Mihai, R. E., Nacher, E., Nae, S., Negret, A., Nita, C., Page, R. D., Pascu, S., Patel, Z., Perea, A., Pucknell, V, Rahkila, R., Rapisarda, E., Regan, P. H., Rotaru, F., Shand, C. M., Simpson, E. C., Sotty, Ch, Stegemann, S., Stora, T., Tengblad, O., Turturicag, A., Van Duppen, R., Vedia, V., Wadsworth, R., Walker, P. M., Warr, N., Wearing, F. and De Witte, H. (2019). Investigation of the Delta n=0 selection rule in Gamow-Teller transitions: The beta-decay of Hg-207. Phys. Lett. B, 793. S. 271 - 276. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1873-2445

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Abstract

Gamow-Teller beta decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This Delta n = 0 requirement plays a major role in the beta decay of heavy neutron-rich nuclei, affecting the nucleosynthesis through the increased half-lives of nuclei on the astrophysical r-process pathway below both Z = 50 (for N > 82) and Z = 82 (for N > 126). The level of forbiddenness of the Delta n = 1 nu 1g(9/2) -> pi 0g(7/2) transition has been investigated from the beta(-) decay of the ground state of Hg-207 into the single-proton-hole nucleus Tl-207 in an experiment at the ISOLDE Decay Station. From statistical observational limits on possible gamma-ray transitions depopulating the pi 0g(7/2)(-1) state in Tl-207, an<bold> </bold>upper limit of 3.9 x 10(-3)% was obtained for the probability of this decay, corresponding to log ft > 8.8 within within a 95% confidence limit. This is the most stringent test of the Delta n = 0 selection rule to date. (C) 2019 The Authors. Published by Elsevier B.V.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Berry, T. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Podolyak, Zs UNSPECIFIED UNSPECIFIED UNSPECIFIED Carroll, R. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lica, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grawe, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Timofeyuk, N. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Alexander, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Andreyev, A. N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ansari, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Borge, M. J. G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Creswell, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fahlander, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fraile, L. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fynbo, H. O. U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gelletly, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gerst, R-b UNSPECIFIED UNSPECIFIED UNSPECIFIED Gorska, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gredley, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Greenlees, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Harkness-Brennan, L. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Huyse, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Judge, S. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Judson, D. S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Konki, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kurcewicz, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kuti, I UNSPECIFIED UNSPECIFIED UNSPECIFIED Lalkovski, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lazarus, I UNSPECIFIED UNSPECIFIED UNSPECIFIED Lund, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Madurga, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Marginean, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Marginean, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Marroquin, I UNSPECIFIED UNSPECIFIED UNSPECIFIED Mihai, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mihai, R. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nacher, E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nae, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Negret, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nita, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Page, R. D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pascu, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Patel, Z. UNSPECIFIED UNSPECIFIED UNSPECIFIED Perea, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pucknell, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Rahkila, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rapisarda, E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Regan, P. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rotaru, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Shand, C. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Simpson, E. C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sotty, Ch UNSPECIFIED UNSPECIFIED UNSPECIFIED Stegemann, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Stora, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tengblad, O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Turturicag, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Van Duppen, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vedia, V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wadsworth, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Walker, P. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Warr, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wearing, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED De Witte, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-137978
DOI:	10.1016/j.physletb.2019.04.039
Journal or Publication Title:	Phys. Lett. B
Volume:	793
Page Range:	S. 271 - 276
Date:	2019
Publisher:	ELSEVIER SCIENCE BV
Place of Publication:	AMSTERDAM
ISSN:	1873-2445
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NUCLEAR-DATA SHEETS; PROTON-HOLE; SHELL-MODEL; STATES Multiple languages Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13797