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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/25334
Title: Analysis of mass-separated evaporation residues formed in S 32 + Zn 70,68 fusion reactions: The special case of Ru 97,95
Authors: Kumar D.
Maiti, Moumita
Prajapat R.
Chauhan A.
Biswas R.
Gehlot J.
Nath S.
Kumar R.
Madhavan N.
Jyothi G.N.
Sahoo R.N.
Shaikh M.M.
Srivastava V.
Published in: Physical Review C
Abstract: Background: The experimental knowledge of nuclear reaction data and decay properties plays a vital role in searching for novel and exotic radioisotopes, prompting us to widen the experimental study of heavy-ion induced reactions. Purpose: The aim is to study the production of mass separated (i.e., separation of different masses of residues, where each mass group consists of isobaric nuclei) evaporation residues (ERs) populated in S32+Zn70 and S32+Zn68 reactions within 115-135 and 130-150 MeV incident energy ranges, respectively, and optimization of masses 97 and 95 u that consist of Pd97, Rh97, Ru97, and Pd95, Rh95, Ru95, Tc95 isobaric residues, respectively. Method: Mass separation of ERs has been achieved at the focal plane of the Heavy Ion Reaction Analyser (HIRA) at the 15 UD Pelletron facility, IUAC, India. The residues were detected at the focal plane of HIRA using a multiwire proportional counter (MWPC). Results: Competing production of masses 97 and 95 u through the fusion of S32 ions with Zn70 and Zn68, respectively, have been observed in comparison to their neighboring masses within the measured energy range. The maximum cumulative production of Ru97 has been found to be ≈99±9.9 Bq/hpnA(mg/cm2) at 125 MeV, while for Ru95 it is ≈69±6.9 Bq/hpnA(mg/cm2) at 135 MeV. Comparisons of experimental results with the theoretical calculations indicate that the residues are mainly populated through the compound reaction mechanism. Conclusions: As anticipated from theory, significant yields of Ru97 and Ru95 in reactions S32+Zn70 and S32+Zn68 have been achieved via cumulative production of different isobars of mass 97 and 95 u, respectively. Cumulative yield of Ru97 has been found to be equivalent, i.e., the same order of magnitude [viz., ≈107 nuclei/h pnA(mg/cm2)], compared to its independent production through B11 and Li7 projectile induced reactions. © 2021 American Physical Society.
Citation: Physical Review C, 104(1)
URI: https://doi.org/10.1103/PhysRevC.104.014602
http://repository.iitr.ac.in/handle/123456789/25334
Issue Date: 2021
Publisher: American Physical Society
ISSN: 24699985
Author Scopus IDs: 57225779974
57215382247
57215042762
57207778244
57205710713
23093557200
7102759705
57200851382
7004213652
57207348577
57188844026
56501514200
57201750885
Author Affiliations: Kumar, D., Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand, Roorkee, 247667, India, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, 64291, Germany
Maiti, M., Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand, Roorkee, 247667, India
Prajapat, R., Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand, Roorkee, 247667, India
Chauhan, A., Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand, Roorkee, 247667, India
Biswas, R., Nuclear Physics Group, Inter-University Accelerator Centre, New Delhi, 110067, India
Gehlot, J., Nuclear Physics Group, Inter-University Accelerator Centre, New Delhi, 110067, India
Nath, S., Nuclear Physics Group, Inter-University Accelerator Centre, New Delhi, 110067, India
Kumar, R., Nuclear Physics Group, Inter-University Accelerator Centre, New Delhi, 110067, India
Madhavan, N., Nuclear Physics Group, Inter-University Accelerator Centre, New Delhi, 110067, India
Jyothi, G.N., Department of Nuclear Physics, Andhra University, Visakhapatnam, 530003, India
Sahoo, R.N., Indian Institute of Technology Ropar, Punjab, Rupnagar, 140001, India, Racah Institute of Physics, Jerusalem, 91904, Israel
Shaikh, M.M., Nuclear Physics Group, Inter-University Accelerator Centre, New Delhi, 110067, India, Chanchal College, West Bengal, Malda, 732123, India
Srivastava, V., Nuclear Physics Group, Inter-University Accelerator Centre, New Delhi, 110067, India, Panjab University, Chandigarh, 160014, India
Funding Details: We extend our sincere thanks to (i) the IUAC Pelletron group for their cooperation during the experiment, (ii) the IUAC target laboratory team for their help in target preparation, and (iii) the IUAC RBS team for characterization of the targets. M.M. acknowledges Research Grant No. 03(1467)/19/EMR-II from CSIR(IN). Support through students' research fellowships from MHRD, Government of India, is also gratefully acknowledged. Council of Scientific and Industrial Research, India, CSIR
Corresponding Author: Maiti, M.; Department of Physics, Uttarakhand, India; email: moumita.maiti@ph.iitr.ac.in
Appears in Collections:Journal Publications [PH]

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