Abstract

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.

Details

Title
Study of exotic decay of Cs isotope close to the proton drip line
Author
Das, P 1 ; Dattaf, Ushasi 1 ; Chakraborty, S 2 ; Rahman, A 3 ; Borge, MJG 4 ; Tengblad, O 5 ; Andreyev, A N 6 ; Becerril, A 5 ; Bhattacharya, P 7 ; Bhattacharyya, A 1 ; Cederkall, J 8 ; De Witte, H 9 ; Fraile, L M 10 ; Gottberg, A 11 ; Greenlees, P T 12 ; Harkness-Brennan, L J 13 ; Huyse, M 9 ; Judson, D S 13 ; Konki, J 12 ; Kurcewicz, J 14 ; Kowalska, M 14 ; Lazarus, I 15 ; Lica, R 14 ; Mandal, S 16 ; Madurga, M 14 ; Marginean, N 17 ; Marginean, R 17 ; Mihai, C 17 ; Morroquin, I 5 ; Nacher, E 5 ; Negret, A 17 ; Page, R D 15 ; Pascu, S 17 ; Perea, A 5 ; Pucknell, V 15 ; Rahkila, P 18 ; Rapisarda, E 14 ; Rotaru, F 17 ; Ray, J 7 ; Sotty, C O 9 ; P Van Duppen 9 ; Vedia, V 10 ; Warr, N 19 ; Stora, T 14 ; Wadsworth, R 6 

1  Saha Institute of Nuclear Physics, Kolkata, India; Homi Bhabha National Institute, Mumbai, India 
2  Saha Institute of Nuclear Physics, Kolkata, India; University of Engg. and Management, Kolkata, India 
3  Saha Institute of Nuclear Physics, Kolkata, India; Jalpaiguri Govt. Engg. College, Jalpaiguri, West Bengal, India 
4  Inst. de Estructura de la Materia, CSIC,Madrid, Spain; ISOLDE, CERN, Geneva, Switzerland 
5  Inst. de Estructura de la Materia, CSIC,Madrid, Spain 
6  University of York, Department of Physics, York YO10 5DD, North Yorkshire, United Kingdom 
7  Saha Institute of Nuclear Physics, Kolkata, India 
8  University of Lund, Sweden 
9  KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium 
10  Grupo de Fisica Nuclear, and IPARCOS, Facultad de CC. Fsicas, Universidad Complutense, CEI Moncloa, 28040 Madrid, Spain 
11  ISOLDE, CERN, Geneva, Switzerland; TRIUMF, Vancouver, Canada 
12  University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland; Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland 
13  Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom 
14  ISOLDE, CERN, Geneva, Switzerland 
15  STFC Daresbury, Daresbury, Warrington WA4 4AD, United Kingdom 
16  University of Delhi, Delhi, India 
17  University of Bucharest, Faculty of Physics, Atomistilor 405, Bucharest-Magurele, Romania 
18  University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland 
19  Institut fur Kernphysik, Universitat zu Koln, Zulpicher Strasse 77, D-50937 Koln, Germany 
Publication year
2020
Publication date
Dec 2020
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1088/1742-6596/1643/1/012127
ProQuest document ID
2571045062
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.