Berry, T. A., Podolyak, Zs, Carroll, R. J., Lica, R., Brown, B. A., Grawe, H., Sotty, Ch, Timofeyuk, N. K., Alexander, T., Andreyev, A. N., Ansari, S., Borge, M. J. G., Brunet, M., Cresswell, J. R., Fahlander, C., Fraile, L. M., Fynbo, H. O. U., Gamba, E., Gelletly, W., Gerst, R-B, Gorska, M., Gredley, A., Greenlees, P., Harkness-Brennan, L. J., Huyse, M., Judge, S. M., Judson, D. S., Konki, J., Kowalska, M., Kurcewicz, J., Kuti, I, Lalkovski, S., Lazarus, I, Lund, M., Madurga, M., Marginean, N., Mihai, C., Mihai, R. E., Nacher, E., Negret, A., Nae, S., Nita, C., Pascu, S., Page, R. D., Patel, Z., Perea, A., Phrompao, J., Piersa, M., Pucknell, V, Rahkila, P., Rapisarda, E., Regan, P. H., Rotaru, F., Rudigier, M., Shand, C. M., Shearman, R., Simpson, E. C., Stegemann, S., Stora, T., Tengblad, O., Turturica, A., Van Duppen, P., Vedia, V., Walker, P. M., Warr, N., Wearing, F. P. and De Witte, H. (2020). Octupole states in Tl-207 studied through beta decay. Phys. Rev. C, 101 (5). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X

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Abstract

The beta decay of Hg-207 into the single-proton-hole nucleus Tl-207 has been studied through gamma-ray spectroscopy at the ISOLDE Decay Station (IDS) with the aim of identifying states resulting from coupling of the pi s(1/2)(-1), pi d(3/2)(-1) and pi h(11/2)(-1) shell model orbitals to the collective octupole vibration. Twenty-two states were observed lying between 2.6 and 4.0 MeV, eleven of which were observed for the first time, and 78 new transitions were placed. Two octupole states (s(3/2)-coupled) are identified and three more states (d(3/2)-coupled) are tentatively assigned using spin-parity inferences, while further h(11/2)-coupled states may also have been observed for the first time. Comparisons are made with state-of-the-art large-scale shell model calculations and previous observations made in this region, and systematic underestimation of the energy of the octupole vibrational states is noted. We suggest that in order to resolve the difference in predicted energies for collective and noncollective t = 1 states (t is the number of nucleons breaking the Pb-208 core), the effect of t = 2 mixing may be reduced for octupole-coupled states. The inclusion of mixing with t = 0, 2, 3 excitations is necessary to replicate all t = 1 state energies accurately.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Berry, T. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Podolyak, ZsUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Carroll, R. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lica, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brown, B. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grawe, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sotty, ChUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Timofeyuk, N. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Alexander, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Andreyev, A. N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ansari, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Borge, M. J. G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brunet, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cresswell, J. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fahlander, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fraile, L. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fynbo, H. O. U.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gamba, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gelletly, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gerst, R-BUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gorska, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gredley, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Greenlees, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Harkness-Brennan, L. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Huyse, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Judge, S. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Judson, D. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Konki, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kowalska, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kurcewicz, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kuti, IUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lalkovski, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lazarus, IUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lund, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Madurga, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Marginean, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mihai, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mihai, R. E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nacher, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Negret, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nae, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nita, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pascu, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Page, R. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Patel, Z.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Perea, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Phrompao, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Piersa, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pucknell, VUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rahkila, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rapisarda, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Regan, P. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rotaru, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rudigier, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shand, C. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shearman, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Simpson, E. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stegemann, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stora, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tengblad, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Turturica, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Van Duppen, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vedia, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Walker, P. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Warr, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wearing, F. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
De Witte, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-333612
DOI: 10.1103/PhysRevC.101.054311
Journal or Publication Title: Phys. Rev. C
Volume: 101
Number: 5
Date: 2020
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1089-490X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
NUCLEAR-DATA SHEETS; PROTON-HOLE STATES; TRANSITIONSMultiple languages
Physics, NuclearMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/33361

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