http://repository.iitr.ac.in/handle/123456789/25349| Title: | Fusion reaction Ca 48 + Bk 249 leading to formation of the element Ts (Z=117) |
| Authors: | Khuyagbaatar J. Yakushev A. Düllmann Ch.E. Ackermann D. Andersson L.-L. Asai M. Block M. Boll R.A. Brand H. Cox D.M. Dasgupta M. Derkx X. Di Nitto A. Eberhardt K. Even J. Evers M. Fahlander C. Forsberg U. Gates J.M. Gharibyan N. Golubev P. Gregorich K.E. Hamilton J.H. Hartmann W. Herzberg R.-D. Heßberger F.P. Hinde D.J. Hoffmann J. Hollinger R. Hübner A. Jäger E. Kindler B. Kratz J.V. Krier J. Kurz N. Laatiaoui M. Lahiri S. Lang R. Lommel B. Maiti, Moumita Miernik K. Minami S. Mistry A. Mokry C. Nitsche H. Omtvedt J.P. Pang G.K. Papadakis P. Renisch D. Roberto J. Rudolph D. Runke J. Rykaczewski K.P. Sarmiento L.G. Schädel M. Schausten B. Semchenkov A. Shaughnessy D.A. Steinegger P. Steiner J. Tereshatov E.E. Thörle-Pospiech P. Tinschert K. Torres De Heidenreich T. Trautmann N. Türler A. Uusitalo J. Ward D.E. Wegrzecki M. Wiehl N. Van Cleve S.M. Yakusheva V. |
| Published in: | Physical Review C |
| Abstract: | The heaviest currently known nuclei, which have up to 118 protons, have been produced in Ca48 induced reactions with actinide targets. Among them, the element tennessine (Ts), which has 117 protons, has been synthesized by fusing Ca48 with the radioactive target Bk249, which has a half-life of 327 d. The experiment was performed at the gas-filled recoil separator TASCA. Two long and two short α decay chains were observed. The long chains were attributed to the decay of Ts294. The possible origin of the short-decay chains is discussed in comparison with the known experimental data. They are found to fit with the decay chain patterns attributed to Ts293. The present experimental results confirm the previous findings at the Dubna Gas-Filled Recoil Separator on the decay chains originating from the nuclei assigned to Ts. © 2019 American Physical Society. |
| Citation: | Physical Review C, 99(5) |
| URI: | https://doi.org/10.1103/PhysRevC.99.054306 http://repository.iitr.ac.in/handle/123456789/25349 |
| Issue Date: | 2019 |
| Publisher: | American Physical Society |
| ISSN: | 24699985 |
| Author Scopus IDs: | 14826956100 7004061403 6602625278 55143078600 56021645400 56019802900 8842274300 7003742025 8915069900 43060973800 7007168775 35193501100 15764317200 7005626196 36117802600 18041779300 22960890000 55944819000 15044162000 26532728100 6602398402 7004333958 7403704653 7201802182 7005241243 7003327706 7003538975 35069598900 8586147800 7004099613 7102107431 6602738844 7004752304 36118124500 26643529500 14025664600 35548177300 12808453000 8252235900 57215382247 6602460291 55627334600 55857155900 14919507100 7006005601 6602734505 8892149900 26436069000 55037265800 7003869600 7101736042 36118370500 55242962700 54884798400 8956603900 6602502353 6603061506 7003693683 50361995900 7201651824 16239638200 36099672400 6601961029 56147232900 7006549037 7006724675 7006528106 57210551112 12241409400 6602549169 55758626400 55792738600 |
| Author Affiliations: | Khuyagbaatar, J., Helmholtz Institute Mainz, Mainz, 55099, Germany, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Yakushev, A., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Düllmann, Ch.E., Helmholtz Institute Mainz, Mainz, 55099, Germany, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany, Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Ackermann, D., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany, GANIL, CEA/DSM-CNRS/IN2P3, Bd Henri Becquerel, BP 55027, Caen Cedex 5, F-14076, France Andersson, L.-L., Helmholtz Institute Mainz, Mainz, 55099, Germany Asai, M., Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan Block, M., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Boll, R.A., Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States Brand, H., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Cox, D.M., University of Liverpool, Liverpool, L69 7ZE, United Kingdom, Lund Univer., Lund, 22100, Sweden Dasgupta, M., Australian National University, Canberra, ACT 0200, Australia Derkx, X., Helmholtz Institute Mainz, Mainz, 55099, Germany, Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Di Nitto, A., Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Eberhardt, K., Helmholtz Institute Mainz, Mainz, 55099, Germany, Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Even, J., Helmholtz Institute Mainz, Mainz, 55099, Germany, KVI-Center for Advanced Radiation Technology University of Groningen, Groningen, 9747 AA, Netherlands Evers, M., Australian National University, Canberra, ACT 0200, Australia Fahlander, C., Lund University, Lund, 22100, Sweden Forsberg, U., Lund University, Lund, 22100, Sweden Gates, J.M., Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States Gharibyan, N., Lawrence Livermore National Laboratory, Livermore, CA 94551, United States Golubev, P., Lund University, Lund, 22100, Sweden Gregorich, K.E., Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States Hamilton, J.H., Vanderbilt University, Nashville, TN 37235, United States Hartmann, W., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Herzberg, R.-D., University of Liverpool, Liverpool, L69 7ZE, United Kingdom Heßberger, F.P., Helmholtz Institute Mainz, Mainz, 55099, Germany, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Hinde, D.J., Australian National University, Canberra, ACT 0200, Australia Hoffmann, J., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Hollinger, R., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Hübner, A., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Jäger, E., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Kindler, B., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Kratz, J.V., Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Krier, J., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Kurz, N., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Laatiaoui, M., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Lahiri, S., Saha Institute of Nuclear Physics, Kolkata, 700064, India Lang, R., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Lommel, B., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Maiti, M., Saha Institute of Nuclear Physics, Kolkata, 700064, India, Indian Institute of Technology Roorkee, Roorkee, 247667, India Miernik, K., Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States Minami, S., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Mistry, A., University of Liverpool, Liverpool, L69 7ZE, United Kingdom, GSI Helmholtzzentrum für Schwerionen., Darmstadt, 64291, Germany Mokry, C., Helmholtz Institute Mainz, Mainz, 55099, Germany, Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Nitsche, H., Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States, Cyclotron Institute, Texas AandM University, College Station, TX 77843, United States Omtvedt, J.P., University of Oslo, Oslo, 0315, Norway Pang, G.K., Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States Papadakis, P., University of Liverpool, Liverpool, L69 7ZE, United Kingdom, University of Jyväskylä, Jyväskylä, 40351, Finland Renisch, D., Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Roberto, J., Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States Rudolph, D., Lund University, Lund, 22100, Sweden Runke, J., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Rykaczewski, K.P., Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States Sarmiento, L.G., Lund University, Lund, 22100, Sweden Schädel, M., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany, Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan Schausten, B., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Semchenkov, A., University of Oslo, Oslo, 0315, Norway Shaughnessy, D.A., Lawrence Livermore National Laboratory, Livermore, CA 94551, United States Steinegger, P., Paul Scherrer Institute, VilligenV, 5232, Switzerland, University of Bern, Bern, 3012, Switzerland Steiner, J., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Tereshatov, E.E., Lawrence Livermore National Laboratory, Livermore, CA 94551, United States Thörle-Pospiech, P., Helmholtz Institute Mainz, Mainz, 55099, Germany, Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Tinschert, K., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Torres De Heidenreich, T., GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany Trautmann, N., Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Türler, A., Paul Scherrer Institute, VilligenV, 5232, Switzerland, University of Bern, Bern, 3012, Switzerland Uusitalo, J., University of Jyväskylä, Jyväskylä, 40351, Finland Ward, D.E., Lund University, Lund, 22100, Sweden Wegrzecki, M., Institute of Electron Technology, Warsaw, 02-668, Poland Wiehl, N., Helmholtz Institute Mainz, Mainz, 55099, Germany, Johannes Gutenberg-Universität Mainz, Mainz, 55099, Germany Van Cleve, S.M., Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States Yakusheva, V., Helmholtz Institute Mainz, Mainz, 55099, Germany |
| Funding Details: | We are grateful for GSI's ECR ion-source and UNILAC staff, and the Experimental Electronics department for their continuous support of the experiment. This work was financially supported in part by the German BMBF (05P12UMFNE), the Helmholtz association (VH-NG-723), the Australian Research Council, the Swedish Research Council (VR 2011-5253), the U.S. Department of Energy by LLNL (DE-AC52-07NA27344), the Laboratory Directed Research and Development Program at LLNL (11-ERD-011), and the Helmholtz Institute Mainz. This work was co-sponsored by the Office of Science, U.S. Department of Energy, and supported under U.S. DOE Grant No. DE-AC05-00OR22725. Three of us (J.M.G., K.E.G., H.N.) were supported by the U.S. Department of Energy, Office of Science, Nuclear Physics, Low Energy Physics Program, through the Lawrence Berkeley National Laboratory under Contract No. DE-AC02-05CH11231. ST/L005689/1; U.S. Department of Energy, USDOE: DE-AC05-00OR22725; Office of Science, SC; Lawrence Livermore National Laboratory, LLNL: DE-AC52-07NA27344; Lawrence Berkeley National Laboratory, LBNL: DE-AC02-05CH11231; Laboratory Directed Research and Development, LDRD: 11-ERD-011; Science and Technology Facilities Council, STFC: ST/L005670/1; Australian Research Council, ARC; Bundesministerium für Bildung und Forschung, BMBF: 05P12UMFNE; Vetenskapsrådet, VR: VR 2011-5253; Helmholtz Association: VH-NG-723 |
| Corresponding Author: | Khuyagbaatar, J.; Helmholtz Institute MainzGermany; email: J.Khuyagbaatar@gsi.de |
| Appears in Collections: | Journal Publications [PH] |
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