Investigation on Competing Fission Modes in 178Pt* Produced by 36Ar + 142Nd Reaction up to High Excitation Energies

D. Kumar; E. M. Kozulin; G. N. Knyazheva; M. Maiti; I. M. Itkis; A. A. Bogachev; K. V. Novikov; M. Cheralu; T. Banerjee; I. N. Diatlov; N. I. Kozulina; I. V. Pchelintsev; I. V. Vorobiev; A. N. Pan; R. Prajapat; E. Vardaci; W. H. Trzaska; A. Andreyev; I. M. Harca

doi:10.3103/S1062873821120194

Investigation on Competing Fission Modes in ¹⁷⁸Pt* Produced by ³⁶Ar + ¹⁴²Nd Reaction up to High Excitation Energies

D. Kumar^*, E. M. Kozulin, G. N. Knyazheva, M. Maiti, I. M. Itkis, A. A. Bogachev, K. V. Novikov, M. Cheralu, T. Banerjee, I. N. Diatlov, N. I. Kozulina, I. V. Pchelintsev, I. V. Vorobiev, A. N. Pan, R. Prajapat, E. Vardaci, W. H. Trzaska, A. Andreyev, I. M. Harca

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Abstract: The mass–energy distributions of binary fission fragments (FFs) of excited exotic nucleus ¹⁷⁸Pt* were measured via the fusion reaction ³⁶Ar + ¹⁴²Nd at different beam energies within 158–222 MeV range using the double arm time-of-flight spectrometer CORSET. The analysis of mass–energy matrices reveals the presence of both asymmetric and symmetric modes corresponding to respective lower and higher total kinetic energy (TKE) of the fragments within 42–64 MeV excitation energy. The agreement of measured mass width with theoretical systematics and dominance of the associated symmetric TKE component at 93 MeV excitation energy indicates the significant predominance/suppression of symmetric/asymmetric mode, respectively. The most probable light and heavy mass peaks of asymmetric fission mode of ¹⁷⁸Pt are spotted at 79 and 99 u, respectively. As inferred from the theory, the mass–TKE events observed at the highest measured excitation energy (93 MeV) endorse the presence of the fast-fission process in ¹⁷⁸Pt* at high angular momentum.

Original language	English
Pages (from-to)	1479-1485
Number of pages	7
Journal	Bulletin of the Russian Academy of Sciences: Physics
Volume	85
Issue number	12
DOIs	https://doi.org/10.3103/S1062873821120194
Publication status	Published - 13 Jan 2022

Bibliographical note

Funding Information:
This work was supported by the Russian Foundation for basic Research (Grant no. 19-52-45023) associated with the Indian Department of Science and Technology (DST) (Grant no. INT/RUS/RFBR/387).

Publisher Copyright:
© 2021, Allerton Press, Inc.

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10.3103/S1062873821120194

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Kumar, D., Kozulin, E. M., Knyazheva, G. N., Maiti, M., Itkis, I. M., Bogachev, A. A., Novikov, K. V., Cheralu, M., Banerjee, T., Diatlov, I. N., Kozulina, N. I., Pchelintsev, I. V., Vorobiev, I. V., Pan, A. N., Prajapat, R., Vardaci, E., Trzaska, W. H., Andreyev, A., & Harca, I. M. (2022). Investigation on Competing Fission Modes in ¹⁷⁸Pt* Produced by ³⁶Ar + ¹⁴²Nd Reaction up to High Excitation Energies. Bulletin of the Russian Academy of Sciences: Physics, 85(12), 1479-1485. https://doi.org/10.3103/S1062873821120194

@article{188d49772dd0410e9ab63cb74e40c2c8,

title = "Investigation on Competing Fission Modes in 178Pt* Produced by 36Ar + 142Nd Reaction up to High Excitation Energies",

abstract = "Abstract: The mass–energy distributions of binary fission fragments (FFs) of excited exotic nucleus 178Pt* were measured via the fusion reaction 36Ar + 142Nd at different beam energies within 158–222 MeV range using the double arm time-of-flight spectrometer CORSET. The analysis of mass–energy matrices reveals the presence of both asymmetric and symmetric modes corresponding to respective lower and higher total kinetic energy (TKE) of the fragments within 42–64 MeV excitation energy. The agreement of measured mass width with theoretical systematics and dominance of the associated symmetric TKE component at 93 MeV excitation energy indicates the significant predominance/suppression of symmetric/asymmetric mode, respectively. The most probable light and heavy mass peaks of asymmetric fission mode of 178Pt are spotted at 79 and 99 u, respectively. As inferred from the theory, the mass–TKE events observed at the highest measured excitation energy (93 MeV) endorse the presence of the fast-fission process in 178Pt* at high angular momentum.",

author = "D. Kumar and Kozulin, {E. M.} and Knyazheva, {G. N.} and M. Maiti and Itkis, {I. M.} and Bogachev, {A. A.} and Novikov, {K. V.} and M. Cheralu and T. Banerjee and Diatlov, {I. N.} and Kozulina, {N. I.} and Pchelintsev, {I. V.} and Vorobiev, {I. V.} and Pan, {A. N.} and R. Prajapat and E. Vardaci and Trzaska, {W. H.} and A. Andreyev and Harca, {I. M.}",

note = "Funding Information: This work was supported by the Russian Foundation for basic Research (Grant no. 19-52-45023) associated with the Indian Department of Science and Technology (DST) (Grant no. INT/RUS/RFBR/387). Publisher Copyright: {\textcopyright} 2021, Allerton Press, Inc.",

year = "2022",

month = jan,

day = "13",

doi = "10.3103/S1062873821120194",

language = "English",

volume = "85",

pages = "1479--1485",

journal = "Bulletin of the Russian Academy of Sciences: Physics",

issn = "1062-8738",

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Kumar, D, Kozulin, EM, Knyazheva, GN, Maiti, M, Itkis, IM, Bogachev, AA, Novikov, KV, Cheralu, M, Banerjee, T, Diatlov, IN, Kozulina, NI, Pchelintsev, IV, Vorobiev, IV, Pan, AN, Prajapat, R, Vardaci, E, Trzaska, WH, Andreyev, A & Harca, IM 2022, 'Investigation on Competing Fission Modes in ¹⁷⁸Pt* Produced by ³⁶Ar + ¹⁴²Nd Reaction up to High Excitation Energies', Bulletin of the Russian Academy of Sciences: Physics, vol. 85, no. 12, pp. 1479-1485. https://doi.org/10.3103/S1062873821120194

TY - JOUR

T1 - Investigation on Competing Fission Modes in 178Pt* Produced by 36Ar + 142Nd Reaction up to High Excitation Energies

AU - Kumar, D.

AU - Kozulin, E. M.

AU - Knyazheva, G. N.

AU - Maiti, M.

AU - Itkis, I. M.

AU - Bogachev, A. A.

AU - Novikov, K. V.

AU - Cheralu, M.

AU - Banerjee, T.

AU - Diatlov, I. N.

AU - Kozulina, N. I.

AU - Pchelintsev, I. V.

AU - Vorobiev, I. V.

AU - Pan, A. N.

AU - Prajapat, R.

AU - Vardaci, E.

AU - Trzaska, W. H.

AU - Andreyev, A.

AU - Harca, I. M.

N1 - Funding Information: This work was supported by the Russian Foundation for basic Research (Grant no. 19-52-45023) associated with the Indian Department of Science and Technology (DST) (Grant no. INT/RUS/RFBR/387). Publisher Copyright: © 2021, Allerton Press, Inc.

PY - 2022/1/13

Y1 - 2022/1/13

N2 - Abstract: The mass–energy distributions of binary fission fragments (FFs) of excited exotic nucleus 178Pt* were measured via the fusion reaction 36Ar + 142Nd at different beam energies within 158–222 MeV range using the double arm time-of-flight spectrometer CORSET. The analysis of mass–energy matrices reveals the presence of both asymmetric and symmetric modes corresponding to respective lower and higher total kinetic energy (TKE) of the fragments within 42–64 MeV excitation energy. The agreement of measured mass width with theoretical systematics and dominance of the associated symmetric TKE component at 93 MeV excitation energy indicates the significant predominance/suppression of symmetric/asymmetric mode, respectively. The most probable light and heavy mass peaks of asymmetric fission mode of 178Pt are spotted at 79 and 99 u, respectively. As inferred from the theory, the mass–TKE events observed at the highest measured excitation energy (93 MeV) endorse the presence of the fast-fission process in 178Pt* at high angular momentum.

AB - Abstract: The mass–energy distributions of binary fission fragments (FFs) of excited exotic nucleus 178Pt* were measured via the fusion reaction 36Ar + 142Nd at different beam energies within 158–222 MeV range using the double arm time-of-flight spectrometer CORSET. The analysis of mass–energy matrices reveals the presence of both asymmetric and symmetric modes corresponding to respective lower and higher total kinetic energy (TKE) of the fragments within 42–64 MeV excitation energy. The agreement of measured mass width with theoretical systematics and dominance of the associated symmetric TKE component at 93 MeV excitation energy indicates the significant predominance/suppression of symmetric/asymmetric mode, respectively. The most probable light and heavy mass peaks of asymmetric fission mode of 178Pt are spotted at 79 and 99 u, respectively. As inferred from the theory, the mass–TKE events observed at the highest measured excitation energy (93 MeV) endorse the presence of the fast-fission process in 178Pt* at high angular momentum.

UR - http://www.scopus.com/inward/record.url?scp=85122951931&partnerID=8YFLogxK

U2 - 10.3103/S1062873821120194

DO - 10.3103/S1062873821120194

M3 - Article

AN - SCOPUS:85122951931

SN - 1062-8738

VL - 85

SP - 1479

EP - 1485

JO - Bulletin of the Russian Academy of Sciences: Physics

JF - Bulletin of the Russian Academy of Sciences: Physics

IS - 12

ER -

Investigation on Competing Fission Modes in ¹⁷⁸Pt* Produced by ³⁶Ar + ¹⁴²Nd Reaction up to High Excitation Energies

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Investigation on Competing Fission Modes in 178Pt* Produced by 36Ar + 142Nd Reaction up to High Excitation Energies

Abstract

Bibliographical note

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Nuclear Physics Consolidated Grant

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Investigation on Competing Fission Modes in ¹⁷⁸Pt* Produced by ³⁶Ar + ¹⁴²Nd Reaction up to High Excitation Energies