High-spin study of odd-$\mth{A}$ $\chem{{}_{49}In}$ isotopes beyond the neutron mid-shell

R. Lucas; M.-G. Porquet; Ts. Venkova; I. Deloncle; M. Houry; Ch. Theisen; A. Astier; A. Bauchet; S. Lalkovski; G. Barreau; N. Buforn; T.P. Doan; L. Donadille; O. Dorvaux; J. Durell; Th. Ethvignot; B.P.J. Gall; D. Grimwood; W. Korten; Y. Le Coz; M. Meyer; A. Minkova; A. Prévost; N. Redon; A. Roach; N. Schulz; A.G. Smith; O. Stézowski; B.J. Varley

doi:doi:10.1140/epja/i2002-10042-8

2022 Impact factor 2.7

Hadrons and Nuclei

Eur. Phys. J. A 15, 315-323 (2002)
DOI: 10.1140/epja/i2002-10042-8

High-spin study of odd- $\mth{A}$ $\chem{{}_{49}In}$ isotopes beyond the neutron mid-shell

R. Lucas¹, M.-G. Porquet², Ts. Venkova³, I. Deloncle², M. Houry¹, Ch. Theisen¹, A. Astier⁴, A. Bauchet², S. Lalkovski², G. Barreau⁵, N. Buforn⁴, T.P. Doan⁵, L. Donadille⁶, O. Dorvaux⁷, J. Durell⁸, Th. Ethvignot⁹, B.P.J. Gall⁷, D. Grimwood⁸, W. Korten¹, Y. Le Coz¹, M. Meyer⁴, A. Minkova^{2, 10}, A. Prévost⁴, N. Redon⁴, A. Roach⁸, N. Schulz⁷, A.G. Smith⁸, O. Stézowski⁴ and B.J. Varley⁸

¹ Commissariat à l'Énergie Atomique, CEA/Saclay, DSM/DAPNIA/SPhN, 91191 Gif-sur-Yvette Cedex, France
² CSNSM, IN2P3-CNRS and Université Paris-Sud, 91405 Orsay, France
³ INRNE, BAS, 1784 Sofia, Bulgaria
⁴ IPNL, IN2P3-CNRS and Université Claude Bernard, 69622 Villeurbanne Cedex, France
⁵ CENBG, IN2P3-CNRS and Université Bordeaux I, 33175 Gradignan, France
⁶ School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, United Kingdom
⁷ IReS, IN2P3-CNRS and Université Louis Pasteur, 67037 Strasbourg, France
⁸ Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom
⁹ Commissariat à l'Energie Atomique Bruyères-le-Châtel, CEA/DIF/SPN, BP12, 91680 Bruyères-le-Châtel, France
¹⁰ University of Sofia, Faculty of Physics, 1126 Sofia, Bulgaria

porquet@csnsm.in2p3.fr

(Received: 24 May 2002 / Published online: 19 November 2002)

Abstract
The $\chem{{}^{115,117,119,121}In}$ nuclei have been produced as fission fragments in three reactions induced by heavy ions: $\chem{{}^{12}C}$ + $\chem{{}^{238}U}$ at 90 MeV bombarding energy, $\chem{{}^{18}O}$ + $\chem{{}^{208}Pb}$ reaction at 85 MeV, and $\chem{{}^{31}P}$ + $\chem{{}^{176}Yb}$ at 152 MeV. Their level schemes have been built from gamma-rays detected using the EUROBALL III and IV arrays. High-spin states of $\chem{{}^{117,119,121}In}$ nuclei have been identified for the first time. Moreover, isomeric states lying around 2.5 MeV have been established in $\chem{{}^{119,121}In}$ from the delayed coincidences between the fission fragment detector SAPhIR and the gamma array. Most of the observed states can be described by coupling a proton g_9/2 hole to a $\chem{Sn}$ core, while the intruder band based on an orbital from the $\pi[g_{7/2}/d_{5/2}]$ sub-shells behaves as the ground-state band of neighbouring Cd isotopes.

PACS
21.60.Ev - Collective models.
23.20.Lv - Gamma transitions and level energies.
25.85.Ge - Charged-particle-induced fission.
27.60.+j - $90\leq A \leq 149$ .

© Società Italiana di Fisica, Springer-Verlag 2002