Probing Optimal Reaction Energy for Synthesis of Element 119 from 51V+248Cm Reaction with Quasielastic Barrier Distribution Measurement

Masaomi Tanaka; Pierre Brionnet; Miting Du; Julie Ezold; Kevin Felker; Benoît J.P. Gall; Shintaro Go; Robert K. Grzywacz; Hiromitsu Haba; Kouichi Hagino; Susan Hogle; Satoshi Ishizawa; Daiya Kaji; Sota Kimura; Thomas T. King; Yukiko Komori; Raiden K. Lemon; Milan G. Leonard; Kouji Morimoto; Kosuke Morita; Daisuke Nagae; Natsuki Naito; Toshitaka Niwase; Bertis C. Rasco; James B. Roberto; Krzysztof P. Rykaczewski; Satoshi Sakaguchi; Hideyuki Sakai; Yudai Shigekawa; Daniel W. Stracener; Shelley VanCleve; Yang Wang; Kouhei Washiyama; Takuya Yokokita

doi:10.7566/JPSJ.91.084201

Probing Optimal Reaction Energy for Synthesis of Element 119 from ⁵¹V+²⁴⁸Cm Reaction with Quasielastic Barrier Distribution Measurement

Masaomi Tanaka, Pierre Brionnet, Miting Du, Julie Ezold, Kevin Felker, Benoît J.P. Gall, Shintaro Go, Robert K. Grzywacz, Hiromitsu Haba, Kouichi Hagino, Susan Hogle, Satoshi Ishizawa, Daiya Kaji, Sota Kimura, Thomas T. King, Yukiko Komori, Raiden K. Lemon, Milan G. Leonard, Kouji Morimoto, Kosuke MoritaDaisuke Nagae, Natsuki Naito, Toshitaka Niwase, Bertis C. Rasco, James B. Roberto, Krzysztof P. Rykaczewski, Satoshi Sakaguchi, Hideyuki Sakai, Yudai Shigekawa, Daniel W. Stracener, Shelley VanCleve, Yang Wang, Kouhei Washiyama, Takuya Yokokita

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

17 Scopus citations

Abstract

The quasielastic barrier distribution of 51V+248Cm was extracted by measuring the excitation function of quasielastic backscattering using a gas-filled recoil ion separator, GARIS-III. The obtained barrier distribution is well explained by the coupled-channels calculation, indicating a significant effect of the rotational excitation of deformed 248Cm. From the measured average Coulomb barrier height and deformation parameters of 248Cm, the side-collision energy leading to a compact configuration of colliding nuclei was obtained. The relation between the side collision energy and the excitation function of the evaporation-residue cross sections in the 48Ca248Cm system was evaluated as a reference for the 51V+248Cm case. The optimal reaction energy to synthesize a new element 119 at the 51V+248Cm fusion reaction (3n and 4n channels) was estimated with an aid of these experimental data.

Original language	English
Article number	084201
Journal	Journal of the Physical Society of Japan
Volume	91
Issue number	8
DOIs	https://doi.org/10.7566/JPSJ.91.084201
State	Published - Aug 1 2022

Funding

Acknowledgments We would like to express our gratitude to the accelerator staff at RIKEN Nishina Center for providing 51V beam under the extremely stable operation and performing the quick change of the supplied beam energy during the entire machine time. The 248Cm isotope used in this research was supplied by the U.S. Department of Energy Isotope Program, managed by the Office of Isotope R&D and Production. The authors would like to thank Dr. T. Tanaka for the fruitful discussions on the interpretation of the data. The present work was supported in part by Grant-in-Aid for JSPS Research Fellow Grant No. 20J01229 and for JSPS KAKENHI Grant No. 20H01918. This work was partially supported by the U.S. DOE under the Contract No. DE-AC05-00OR22725.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725
Office of Isotope R and D and Production
Japan Society for the Promotion of Science	20H01918, 20J01229

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Cite this

Tanaka, M., Brionnet, P., Du, M., Ezold, J., Felker, K., Gall, B. J. P., Go, S., Grzywacz, R. K., Haba, H., Hagino, K., Hogle, S., Ishizawa, S., Kaji, D., Kimura, S., King, T. T., Komori, Y., Lemon, R. K., Leonard, M. G., Morimoto, K., ... Yokokita, T. (2022). Probing Optimal Reaction Energy for Synthesis of Element 119 from ⁵¹V+²⁴⁸Cm Reaction with Quasielastic Barrier Distribution Measurement. Journal of the Physical Society of Japan, 91(8), Article 084201. https://doi.org/10.7566/JPSJ.91.084201

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title = "Probing Optimal Reaction Energy for Synthesis of Element 119 from 51V+248Cm Reaction with Quasielastic Barrier Distribution Measurement",

abstract = "The quasielastic barrier distribution of 51V+248Cm was extracted by measuring the excitation function of quasielastic backscattering using a gas-filled recoil ion separator, GARIS-III. The obtained barrier distribution is well explained by the coupled-channels calculation, indicating a significant effect of the rotational excitation of deformed 248Cm. From the measured average Coulomb barrier height and deformation parameters of 248Cm, the side-collision energy leading to a compact configuration of colliding nuclei was obtained. The relation between the side collision energy and the excitation function of the evaporation-residue cross sections in the 48Ca248Cm system was evaluated as a reference for the 51V+248Cm case. The optimal reaction energy to synthesize a new element 119 at the 51V+248Cm fusion reaction (3n and 4n channels) was estimated with an aid of these experimental data.",

author = "Masaomi Tanaka and Pierre Brionnet and Miting Du and Julie Ezold and Kevin Felker and Gall, {Beno{\^i}t J.P.} and Shintaro Go and Grzywacz, {Robert K.} and Hiromitsu Haba and Kouichi Hagino and Susan Hogle and Satoshi Ishizawa and Daiya Kaji and Sota Kimura and King, {Thomas T.} and Yukiko Komori and Lemon, {Raiden K.} and Leonard, {Milan G.} and Kouji Morimoto and Kosuke Morita and Daisuke Nagae and Natsuki Naito and Toshitaka Niwase and Rasco, {Bertis C.} and Roberto, {James B.} and Rykaczewski, {Krzysztof P.} and Satoshi Sakaguchi and Hideyuki Sakai and Yudai Shigekawa and Stracener, {Daniel W.} and Shelley VanCleve and Yang Wang and Kouhei Washiyama and Takuya Yokokita",

note = "Publisher Copyright: {\textcopyright} 2022 The Physical Society of Japan.",

year = "2022",

month = aug,

day = "1",

doi = "10.7566/JPSJ.91.084201",

language = "English",

volume = "91",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

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Tanaka, M, Brionnet, P, Du, M , Ezold, J , Felker, K, Gall, BJP, Go, S, Grzywacz, RK, Haba, H, Hagino, K, Hogle, S, Ishizawa, S, Kaji, D, Kimura, S, King, TT, Komori, Y, Lemon, RK, Leonard, MG, Morimoto, K, Morita, K, Nagae, D, Naito, N, Niwase, T, Rasco, BC, Roberto, JB, Rykaczewski, KP, Sakaguchi, S, Sakai, H, Shigekawa, Y, Stracener, DW , VanCleve, S, Wang, Y, Washiyama, K & Yokokita, T 2022, 'Probing Optimal Reaction Energy for Synthesis of Element 119 from ⁵¹V+²⁴⁸Cm Reaction with Quasielastic Barrier Distribution Measurement', Journal of the Physical Society of Japan, vol. 91, no. 8, 084201. https://doi.org/10.7566/JPSJ.91.084201

TY - JOUR

T1 - Probing Optimal Reaction Energy for Synthesis of Element 119 from 51V+248Cm Reaction with Quasielastic Barrier Distribution Measurement

AU - Tanaka, Masaomi

AU - Brionnet, Pierre

AU - Du, Miting

AU - Ezold, Julie

AU - Felker, Kevin

AU - Gall, Benoît J.P.

AU - Go, Shintaro

AU - Grzywacz, Robert K.

AU - Haba, Hiromitsu

AU - Hagino, Kouichi

AU - Hogle, Susan

AU - Ishizawa, Satoshi

AU - Kaji, Daiya

AU - Kimura, Sota

AU - King, Thomas T.

AU - Komori, Yukiko

AU - Lemon, Raiden K.

AU - Leonard, Milan G.

AU - Morimoto, Kouji

AU - Morita, Kosuke

AU - Nagae, Daisuke

AU - Naito, Natsuki

AU - Niwase, Toshitaka

AU - Rasco, Bertis C.

AU - Roberto, James B.

AU - Rykaczewski, Krzysztof P.

AU - Sakaguchi, Satoshi

AU - Sakai, Hideyuki

AU - Shigekawa, Yudai

AU - Stracener, Daniel W.

AU - VanCleve, Shelley

AU - Wang, Yang

AU - Washiyama, Kouhei

AU - Yokokita, Takuya

PY - 2022/8/1

Y1 - 2022/8/1

N2 - The quasielastic barrier distribution of 51V+248Cm was extracted by measuring the excitation function of quasielastic backscattering using a gas-filled recoil ion separator, GARIS-III. The obtained barrier distribution is well explained by the coupled-channels calculation, indicating a significant effect of the rotational excitation of deformed 248Cm. From the measured average Coulomb barrier height and deformation parameters of 248Cm, the side-collision energy leading to a compact configuration of colliding nuclei was obtained. The relation between the side collision energy and the excitation function of the evaporation-residue cross sections in the 48Ca248Cm system was evaluated as a reference for the 51V+248Cm case. The optimal reaction energy to synthesize a new element 119 at the 51V+248Cm fusion reaction (3n and 4n channels) was estimated with an aid of these experimental data.

AB - The quasielastic barrier distribution of 51V+248Cm was extracted by measuring the excitation function of quasielastic backscattering using a gas-filled recoil ion separator, GARIS-III. The obtained barrier distribution is well explained by the coupled-channels calculation, indicating a significant effect of the rotational excitation of deformed 248Cm. From the measured average Coulomb barrier height and deformation parameters of 248Cm, the side-collision energy leading to a compact configuration of colliding nuclei was obtained. The relation between the side collision energy and the excitation function of the evaporation-residue cross sections in the 48Ca248Cm system was evaluated as a reference for the 51V+248Cm case. The optimal reaction energy to synthesize a new element 119 at the 51V+248Cm fusion reaction (3n and 4n channels) was estimated with an aid of these experimental data.

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DO - 10.7566/JPSJ.91.084201

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