Nuclear Physics A 716 (2003) 3–54 www.elsevier.com/locate/npe Nuclear structure of 129 Te studied with (n, γ), (d, p) and (  d, t) reactions H.-F. Wirth a,∗,1 , T. von Egidy a , I. Tomandl b , J. Honzátko b , D. Bucurescu c , N. M˘ arginean c , V.Yu. Ponomarev d , R. Hertenberger e , Y. Eisermann e , G. Graw e a Physik-Department, Technische Universität München, D-85748 Garching, Germany b Nuclear Physics Institute, 250 68 ˇ Rež, Czech Republic c Horia Hulubei Institute of Physics and Nuclear Engineering, 76900 Bucharest, Romania d Joint Institute for Nuclear Research, 141980 Dubna, Russia e Sektion Physik, Ludwig-Maximilians-Universität München, D-85748 Garching, Germany Received 1 October 2002; received in revised form 18 November 2002; accepted 28 November 2002 Abstract The nuclear structure of 129 Te has been investigated with the 128 Te(n, γγ ) 129 Te reaction using thermal neutrons, with the 128 Te(d, p) 129 Te reaction at E d = 24 MeV and E d = 18 MeV, and with the 130 Te(  d, t) 129 Te reaction at E d = 24 MeV. More than 110 levels were identified already below 3 MeV excitation energy, in most cases including spin, parity, and γ decay. The neutron binding energy was determined to be 6082.42(11) keV. The thermal neutron capture cross sections to the ground state and to the 11/2 - isomer were found to be 0.165(20) b and 0.021(3) b, respectively. The mechanism of direct neutron capture was verified to play an important role in the 128 Te(n, γ ) 129 Te reaction. The experimental level scheme is compared with predictions of the Interacting Boson– Fermion Model (IBFM) and of the Quasiparticle Phonon Model (QPM).  2002 Elsevier Science B.V. All rights reserved. PACS: 21.10.-k; 21.10.Jx; 21.60.Ev; 27.60.+j Keywords: NUCLEAR REACTIONS 128 Te(n, γ ), E = thermal; Measured E γ , I γ , γγ coincidence; 128 Te(d, p), E = 18, 24 MeV; 130 Te(polarized d, t), E = 24 MeV; Measured particle spectra, angular distributions; 129 Te deduced levels, J , π , binding energy; Comparison with model predictions * Corresponding author. E-mail address: hans-friedrich.wirth@lmu.de (H.-F. Wirth). 1 Present address: Sektion Physik, Ludwig-Maximilians-Universität München, Am Coulombwall 1, D-85748 Garching, Germany. 0375-9474/02/$ – see front matter  2002 Elsevier Science B.V. All rights reserved. doi:10.1016/S0375-9474(02)01401-X