First experiment at the Super Heavy Element Factory: High cross section of Mc 288 in the Am 243 + Ca 48 reaction and identification of the new isotope Lr 264

Yu T. Oganessian; V. K. Utyonkov; N. D. Kovrizhnykh; F. Sh Abdullin; S. N. Dmitriev; D. Ibadullayev; M. G. Itkis; D. A. Kuznetsov; O. V. Petrushkin; A. V. Podshibiakin; A. N. Polyakov; A. G. Popeko; R. N. Sagaidak; L. Schlattauer; I. V. Shirokovski; V. D. Shubin; M. V. Shumeiko; D. I. Solovyev; Yu S. Tsyganov; A. A. Voinov; V. G. Subbotin; A. Yu Bodrov; A. V. Sabel'Nikov; A. V. Khalkin; V. B. Zlokazov; K. P. Rykaczewski; T. T. King; J. B. Roberto; N. T. Brewer; R. K. Grzywacz; Z. G. Gan; Z. Y. Zhang; M. H. Huang; H. B. Yang

doi:10.1103/PhysRevC.106.L031301

First experiment at the Super Heavy Element Factory: High cross section of Mc 288 in the Am 243 + Ca 48 reaction and identification of the new isotope Lr 264

Yu T. Oganessian, V. K. Utyonkov, N. D. Kovrizhnykh, F. Sh Abdullin, S. N. Dmitriev, D. Ibadullayev, M. G. Itkis, D. A. Kuznetsov, O. V. Petrushkin, A. V. Podshibiakin, A. N. Polyakov, A. G. Popeko, R. N. Sagaidak, L. Schlattauer, I. V. Shirokovski, V. D. Shubin, M. V. Shumeiko, D. I. Solovyev, Yu S. Tsyganov, A. A. VoinovV. G. Subbotin, A. Yu Bodrov, A. V. Sabel'Nikov, A. V. Khalkin, V. B. Zlokazov, K. P. Rykaczewski, T. T. King, J. B. Roberto, N. T. Brewer, R. K. Grzywacz, Z. G. Gan, Z. Y. Zhang, M. H. Huang, H. B. Yang

Nuclear Structure and Nuclear Astrophysi

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

50 Scopus citations

Abstract

We present results of the first experiment aimed at the synthesis of Mc isotopes in the Am243+Ca48 reaction performed at the new gas-filled separator DGFRS-2 online to the new cyclotron DC280 at the Super Heavy Element Factory at JINR. Fifty-five new decay chains of Mc288 and six chains assigned to Mc289 were detected. The α decay of Db268 with an energy of 7.6-8.0 MeV, half-life of 16-4+6h, and a branch of 55-15+20% was registered for the first time, and a new spontaneously fissioning isotope Lr264 with a half-life of 4.9-1.3+2.1h was identified. The cross section for the Am243(Ca48,3n)Mc288 reaction was measured to be 17.1-4.7+6.3 pb, which is the largest value for the known superheavy nuclei at the island of stability.

Original language	English
Article number	L031301
Journal	Physical Review C
Volume	106
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.106.L031301
State	Published - Sep 2022

Funding

We thank the personnel operating the DC280 cyclotron and the associates of the ion-source group for obtaining beams. These studies were supported by the Ministry of Science and Higher Education of the Russian Federation through Grant No. 075-10-2020-117 and by the JINR Directorate grant. Research at ORNL was supported by the U.S. DOE Office of Nuclear Physics under DOE Contract No. DE-AC05-00OR22725 with UT Battelle, LLC. This work was also supported by the National Natural Science Foundation of China (Grant No. 11975279).

Access to Document

10.1103/PhysRevC.106.L031301

Cite this

Oganessian, Y. T., Utyonkov, V. K., Kovrizhnykh, N. D., Abdullin, F. S., Dmitriev, S. N., Ibadullayev, D., Itkis, M. G., Kuznetsov, D. A., Petrushkin, O. V., Podshibiakin, A. V., Polyakov, A. N., Popeko, A. G., Sagaidak, R. N., Schlattauer, L., Shirokovski, I. V., Shubin, V. D., Shumeiko, M. V., Solovyev, D. I., Tsyganov, Y. S., ... Yang, H. B. (2022). First experiment at the Super Heavy Element Factory: High cross section of Mc 288 in the Am 243 + Ca 48 reaction and identification of the new isotope Lr 264. Physical Review C, 106(3), Article L031301. https://doi.org/10.1103/PhysRevC.106.L031301

@article{9f390238ddf547b7af38ce17fc5a91e0,

title = "First experiment at the Super Heavy Element Factory: High cross section of Mc 288 in the Am 243 + Ca 48 reaction and identification of the new isotope Lr 264",

abstract = "We present results of the first experiment aimed at the synthesis of Mc isotopes in the Am243+Ca48 reaction performed at the new gas-filled separator DGFRS-2 online to the new cyclotron DC280 at the Super Heavy Element Factory at JINR. Fifty-five new decay chains of Mc288 and six chains assigned to Mc289 were detected. The α decay of Db268 with an energy of 7.6-8.0 MeV, half-life of 16-4+6h, and a branch of 55-15+20% was registered for the first time, and a new spontaneously fissioning isotope Lr264 with a half-life of 4.9-1.3+2.1h was identified. The cross section for the Am243(Ca48,3n)Mc288 reaction was measured to be 17.1-4.7+6.3 pb, which is the largest value for the known superheavy nuclei at the island of stability.",

author = "Oganessian, {Yu T.} and Utyonkov, {V. K.} and Kovrizhnykh, {N. D.} and Abdullin, {F. Sh} and Dmitriev, {S. N.} and D. Ibadullayev and Itkis, {M. G.} and Kuznetsov, {D. A.} and Petrushkin, {O. V.} and Podshibiakin, {A. V.} and Polyakov, {A. N.} and Popeko, {A. G.} and Sagaidak, {R. N.} and L. Schlattauer and Shirokovski, {I. V.} and Shubin, {V. D.} and Shumeiko, {M. V.} and Solovyev, {D. I.} and Tsyganov, {Yu S.} and Voinov, {A. A.} and Subbotin, {V. G.} and Bodrov, {A. Yu} and Sabel'Nikov, {A. V.} and Khalkin, {A. V.} and Zlokazov, {V. B.} and Rykaczewski, {K. P.} and King, {T. T.} and Roberto, {J. B.} and Brewer, {N. T.} and Grzywacz, {R. K.} and Gan, {Z. G.} and Zhang, {Z. Y.} and Huang, {M. H.} and Yang, {H. B.}",

note = "Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

year = "2022",

month = sep,

doi = "10.1103/PhysRevC.106.L031301",

language = "English",

volume = "106",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "3",

}

Oganessian, YT, Utyonkov, VK, Kovrizhnykh, ND, Abdullin, FS, Dmitriev, SN, Ibadullayev, D, Itkis, MG, Kuznetsov, DA, Petrushkin, OV, Podshibiakin, AV, Polyakov, AN, Popeko, AG, Sagaidak, RN, Schlattauer, L, Shirokovski, IV, Shubin, VD, Shumeiko, MV, Solovyev, DI, Tsyganov, YS, Voinov, AA, Subbotin, VG, Bodrov, AY, Sabel'Nikov, AV, Khalkin, AV, Zlokazov, VB, Rykaczewski, KP, King, TT, Roberto, JB, Brewer, NT, Grzywacz, RK, Gan, ZG, Zhang, ZY, Huang, MH & Yang, HB 2022, 'First experiment at the Super Heavy Element Factory: High cross section of Mc 288 in the Am 243 + Ca 48 reaction and identification of the new isotope Lr 264', Physical Review C, vol. 106, no. 3, L031301. https://doi.org/10.1103/PhysRevC.106.L031301

TY - JOUR

T1 - First experiment at the Super Heavy Element Factory

T2 - High cross section of Mc 288 in the Am 243 + Ca 48 reaction and identification of the new isotope Lr 264

AU - Oganessian, Yu T.

AU - Utyonkov, V. K.

AU - Kovrizhnykh, N. D.

AU - Abdullin, F. Sh

AU - Dmitriev, S. N.

AU - Ibadullayev, D.

AU - Itkis, M. G.

AU - Kuznetsov, D. A.

AU - Petrushkin, O. V.

AU - Podshibiakin, A. V.

AU - Polyakov, A. N.

AU - Popeko, A. G.

AU - Sagaidak, R. N.

AU - Schlattauer, L.

AU - Shirokovski, I. V.

AU - Shubin, V. D.

AU - Shumeiko, M. V.

AU - Solovyev, D. I.

AU - Tsyganov, Yu S.

AU - Voinov, A. A.

AU - Subbotin, V. G.

AU - Bodrov, A. Yu

AU - Sabel'Nikov, A. V.

AU - Khalkin, A. V.

AU - Zlokazov, V. B.

AU - Rykaczewski, K. P.

AU - King, T. T.

AU - Roberto, J. B.

AU - Brewer, N. T.

AU - Grzywacz, R. K.

AU - Gan, Z. G.

AU - Zhang, Z. Y.

AU - Huang, M. H.

AU - Yang, H. B.

PY - 2022/9

Y1 - 2022/9

N2 - We present results of the first experiment aimed at the synthesis of Mc isotopes in the Am243+Ca48 reaction performed at the new gas-filled separator DGFRS-2 online to the new cyclotron DC280 at the Super Heavy Element Factory at JINR. Fifty-five new decay chains of Mc288 and six chains assigned to Mc289 were detected. The α decay of Db268 with an energy of 7.6-8.0 MeV, half-life of 16-4+6h, and a branch of 55-15+20% was registered for the first time, and a new spontaneously fissioning isotope Lr264 with a half-life of 4.9-1.3+2.1h was identified. The cross section for the Am243(Ca48,3n)Mc288 reaction was measured to be 17.1-4.7+6.3 pb, which is the largest value for the known superheavy nuclei at the island of stability.

AB - We present results of the first experiment aimed at the synthesis of Mc isotopes in the Am243+Ca48 reaction performed at the new gas-filled separator DGFRS-2 online to the new cyclotron DC280 at the Super Heavy Element Factory at JINR. Fifty-five new decay chains of Mc288 and six chains assigned to Mc289 were detected. The α decay of Db268 with an energy of 7.6-8.0 MeV, half-life of 16-4+6h, and a branch of 55-15+20% was registered for the first time, and a new spontaneously fissioning isotope Lr264 with a half-life of 4.9-1.3+2.1h was identified. The cross section for the Am243(Ca48,3n)Mc288 reaction was measured to be 17.1-4.7+6.3 pb, which is the largest value for the known superheavy nuclei at the island of stability.

UR - http://www.scopus.com/inward/record.url?scp=85139626447&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.106.L031301

DO - 10.1103/PhysRevC.106.L031301

M3 - Article

AN - SCOPUS:85139626447

SN - 2469-9985

VL - 106

JO - Physical Review C

JF - Physical Review C

IS - 3

M1 - L031301

ER -

First experiment at the Super Heavy Element Factory: High cross section of Mc 288 in the Am 243 + Ca 48 reaction and identification of the new isotope Lr 264

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this