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Lifetime of the $4_{1}^{+}$ state of ${}^{132}{Te}$

H. Mayr ^1,*, T. Stetz¹, V. Werner ^1,2, N. Pietralla ¹, M. Beckers³, A. Blazhev ³, A. Esmaylzadeh ³, J. Fischer ³, R.-B. Gerst³ et al.

K. A. Gladnishki ⁴, K. E. Ide ¹, J. Jolie ³, V. Karayonchev⁵, E. Kleis³, H. Kleis ³, P. Koch³, D. Kocheva ⁴, C. M. Nickel ¹, T. Otsuka ⁶, A. Pfeil ³, G. Rainovski ⁴, F. von Spee ³, M. Stoyanova ⁴, Y. Tsunoda ^6,7, and R. Zidarova ¹

¹Technische Universität Darmstadt, Department of Physics, Institute for Nuclear Physics, Schlossgartenstraße 9, 64289 Darmstadt, Germany
²Helmholtz Forschungsakademie Hessen für FAIR (HFHF), Campus Darmstadt, Schlossgartenstraße 2, 64289 Darmstadt, Germany
³Universität zu Köln, Institute for Nuclear Physics, Zülpicher Straße 77, 50937 Köln, Germany
⁴University of Sofia St. Kliment Ohridski, Faculty of Physics, 5 James Bourchier blvd., 1164 Sofia, Bulgaria
⁵Tri University Meson Facility TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
⁶Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
⁷Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan

^*Contact author: hmayr@ikp.tu-darmstadt.de

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Phys. Rev. C 113, 014318 – Published 21 January, 2026

DOI: https://doi.org/10.1103/krb8-cl9f

Abstract

The evolution of the collectivity of tellurium isotopes from midshell towards $N = 82$ is currently based mainly on properties of the first excited $2^{+}$ states. To extend structural information in this isotopic chain, in particular with respect to the balance of microscopic, seniority-type, and collective excitations, electric quadrupole transition strengths from $4^{+}$ states need to be considered. An experiment was performed to determine the $4_{1}^{+}$ lifetime of ${}^{132}{Te}$ via the recoil-distance Doppler-shift method at the University of Cologne tandem accelerator. The isotope of interest was populated in the two neutron-transfer reaction ${}^{130}{Te}$ ( ${}^{18}O, {}^{16}O$ ) ${}^{132}{Te}^{*}$ . The $E 2$ decay transition strength has been determined to be $B (E 2; 4_{1}^{+} \to 2_{1}^{+}) = 9.3 (10) W.u.$ This value differs from literature data but compares favorably to shell model calculations.

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Phys. Rev. C 113, 014318– Published 21 January, 2026

Vol. 113, Iss. 1 — January 2026

Received 23 September 2025
Accepted 5 December 2025

DOI: https://doi.org/10.1103/krb8-cl9f

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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Lifetime of the $4_{1}^{+}$ state of ${}^{132}{Te}$

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Lifetime of the 41+ state of Te132

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Lifetime of the $4_{1}^{+}$ state of ${}^{132}{Te}$