Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the 18O + 232Th reaction

R. Léguillon; K. Nishio; K. Hirose; H. Makii; I. Nishinaka; R. Orlandi; K. Tsukada; J. Smallcombe; S. Chiba; Y. Aritomo; T. Ohtsuki; R. Tatsuzawa; N. Takaki; N. Tamura; S. Goto; I. Tsekhanovich; C.M. Petrache; A.N. Andreyev

doi:10.1016/j.physletb.2016.08.010

Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the ¹⁸O + ²³²Th reaction

R. Léguillon, K. Nishio, K. Hirose, H. Makii, I. Nishinaka, R. Orlandi, K. Tsukada, J. Smallcombe, S. Chiba, Y. Aritomo, T. Ohtsuki, R. Tatsuzawa, N. Takaki, N. Tamura, S. Goto, I. Tsekhanovich, C.M. Petrache, A.N. Andreyev

Physics

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

Abstract

It is shown that the multinucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multinucleon transfer channels of the ¹⁸O + ²³²Th reaction are used to study fission of fourteen nuclei ^{231,232,233,234}Th, ^{232,233,234,235,236}Pa, and ^{234,235,236,237,238}U. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel, in selected bins of excitation energy. In particular, the mass distributions of ^231,234Th and ^234,235,236Pa are measured for the first time. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation–dissipation model.

Original language	English
Pages (from-to)	125 - 130
Number of pages	6
Journal	Physics Letters B
Volume	761
Early online date	9 Aug 2016
DOIs	https://doi.org/10.1016/j.physletb.2016.08.010
Publication status	Published - 10 Oct 2016

Bibliographical note

Keywords

234–238U
Pa
Th
U
Multinucleon transfer reaction
Fission fragment mass distribution
Fission

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10.1016/j.physletb.2016.08.010

1-s2.0-S0370269316304300-main
© 2016 The Author(s). Published by Elsevier B.V.
Final published version, 1.27 MBLicence: CC BY

http://www.sciencedirect.com/science/article/pii/S0370269316304300

Cite this

Léguillon, R., Nishio, K., Hirose, K., Makii, H., Nishinaka, I., Orlandi, R., Tsukada, K., Smallcombe, J., Chiba, S., Aritomo, Y., Ohtsuki, T., Tatsuzawa, R., Takaki, N., Tamura, N., Goto, S., Tsekhanovich, I., Petrache, C. M., & Andreyev, A. N. (2016). Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the ¹⁸O + ²³²Th reaction. Physics Letters B, 761, 125 - 130. https://doi.org/10.1016/j.physletb.2016.08.010

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title = "Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the 18O + 232Th reaction",

abstract = "It is shown that the multinucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multinucleon transfer channels of the 18O + 232Th reaction are used to study fission of fourteen nuclei 231,232,233,234Th, 232,233,234,235,236Pa, and 234,235,236,237,238U. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel, in selected bins of excitation energy. In particular, the mass distributions of 231,234Th and 234,235,236Pa are measured for the first time. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation–dissipation model. ",

keywords = "234–238U, Pa, Th, U, Multinucleon transfer reaction, Fission fragment mass distribution, Fission",

author = "R. L{\'e}guillon and K. Nishio and K. Hirose and H. Makii and I. Nishinaka and R. Orlandi and K. Tsukada and J. Smallcombe and S. Chiba and Y. Aritomo and T. Ohtsuki and R. Tatsuzawa and N. Takaki and N. Tamura and S. Goto and I. Tsekhanovich and C.M. Petrache and A.N. Andreyev",

note = "{\textcopyright} 2016 The Author(s). Published by Elsevier B.V.",

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Léguillon, R, Nishio, K, Hirose, K, Makii, H, Nishinaka, I, Orlandi, R, Tsukada, K, Smallcombe, J, Chiba, S, Aritomo, Y, Ohtsuki, T, Tatsuzawa, R, Takaki, N, Tamura, N, Goto, S, Tsekhanovich, I, Petrache, CM & Andreyev, AN 2016, 'Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the ¹⁸O + ²³²Th reaction', Physics Letters B, vol. 761, pp. 125 - 130. https://doi.org/10.1016/j.physletb.2016.08.010

TY - JOUR

T1 - Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the 18O + 232Th reaction

AU - Léguillon, R.

AU - Nishio, K.

AU - Hirose, K.

AU - Makii, H.

AU - Nishinaka, I.

AU - Orlandi, R.

AU - Tsukada, K.

AU - Smallcombe, J.

AU - Chiba, S.

AU - Aritomo, Y.

AU - Ohtsuki, T.

AU - Tatsuzawa, R.

AU - Takaki, N.

AU - Tamura, N.

AU - Goto, S.

AU - Tsekhanovich, I.

AU - Petrache, C.M.

AU - Andreyev, A.N.

PY - 2016/10/10

Y1 - 2016/10/10

N2 - It is shown that the multinucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multinucleon transfer channels of the 18O + 232Th reaction are used to study fission of fourteen nuclei 231,232,233,234Th, 232,233,234,235,236Pa, and 234,235,236,237,238U. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel, in selected bins of excitation energy. In particular, the mass distributions of 231,234Th and 234,235,236Pa are measured for the first time. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation–dissipation model.

AB - It is shown that the multinucleon transfer reactions is a powerful tool to study fission of exotic neutron-rich actinide nuclei, which cannot be accessed by particle-capture or heavy-ion fusion reactions. In this work, multinucleon transfer channels of the 18O + 232Th reaction are used to study fission of fourteen nuclei 231,232,233,234Th, 232,233,234,235,236Pa, and 234,235,236,237,238U. Identification of fissioning nuclei and of their excitation energy is performed on an event-by-event basis, through the measurement of outgoing ejectile particle in coincidence with fission fragments. Fission fragment mass distributions are measured for each transfer channel, in selected bins of excitation energy. In particular, the mass distributions of 231,234Th and 234,235,236Pa are measured for the first time. Predominantly asymmetric fission is observed at low excitation energies for all studied cases, with a gradual increase of the symmetric mode towards higher excitation energy. The experimental distributions are found to be in general agreement with predictions of the fluctuation–dissipation model.

KW - 234–238U

KW - Pa

KW - Th

KW - U

KW - Multinucleon transfer reaction

KW - Fission fragment mass distribution

KW - Fission

UR - http://www.scopus.com/inward/record.url?scp=84983517987&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2016.08.010

DO - 10.1016/j.physletb.2016.08.010

M3 - Article

VL - 761

SP - 125

EP - 130

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -

Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the ¹⁸O + ²³²Th reaction

Abstract

Bibliographical note

Keywords

Access to Document

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Andrey Andreyev

Cite this

Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the 18O + 232Th reaction

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Profiles

Andrey Andreyev

Cite this

Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the ¹⁸O + ²³²Th reaction