Study of exotic decay of Cs isotope close to the proton drip line

P. Das, Ushasi Dattaf*, S. Chakraborty, A. Rahman, M. J.G. Borge, O. Tengblad, A. N. Andreyev, A. Becerril, P. Bhattacharya, A. Bhattacharyya, J. Cederkall, H. De Witte, L. M. Fraile, A. Gottberg, P. T. Greenlees, L. J. Harkness-Brennan, M. Huyse, D. S. Judson, J. Konki, J. KurcewiczM. Kowalska, I. Lazarus, R. Lica, S. Mandal, M. Madurga, N. Marginean, R. Marginean, C. Mihai, I. Morroquin, E. Nacher, A. Negret, R. D. Page, S. Pascu, A. Perea, V. Pucknell, P. Rahkila, E. Rapisarda, F. Rotaru, J. Ray, C. O. Sotty, P. Van Duppen, V. Vedia, N. Warr, T. Stora, R. Wadsworth

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


The neutron-deficient 115Cs was produced at ISOLDE, CERN by spallation reaction using 1.4 GeV proton on LaC2 target. The exotic decay modes were studied by using a charged particle array (DSSD and pad detectors) and a γ-detector array (four Clovers) at the ISOLDE decay station (IDS). In this report, results on observed β-delayed particle emission from 115Cs, a nucleus close to proton drip line, is presented. By measuring the time distribution in the delayed proton spectrum, the half-life of the ground state of 115Cs was extracted. The obtained half-life is in agreement with previous reported value. For the first time, the p-unbound states of 115Xe, obtained by measuring beta-delayed protons from 115Cs is reported.

Original languageEnglish
Article number012127
Number of pages7
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 23 Dec 2020
Event27th International Nuclear Physics Conference, INPC 2019 - Glasgow, United Kingdom
Duration: 29 Jul 20192 Aug 2019

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