Prediction of synthesis cross sections of new moscovium isotopes in fusion-evaporation reactions

被引:0
|
作者
Peng-Hui Chen
Hao Wu
Zu-Xing Yang
Xiang-Hua Zeng
Zhao-Qing Feng
机构
[1] Yangzhou University,School of Physical Science and Technology
[2] Chinese Academy of Sciences,Institute of Modern Physics
[3] RIKEN Nishina Center,College of Electrical, Power and Energy Engineering
[4] Wako,School of Physics and Optoelectronics
[5] Yangzhou University,undefined
[6] South China University of Technology,undefined
来源
关键词
Dinuclear system model; Superheavy nuclei; Complete fusion reactions; Production cross-section;
D O I
暂无
中图分类号
学科分类号
摘要
In the framework of the dinuclear system model, the synthesis mechanism of the superheavy nuclides with atomic numbers Z=112,114,115\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$Z=112, 114, 115$$\end{document} in the reactions of projectiles 40,48\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{40,48}$$\end{document}Ca bombarding on targets 238\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{238}$$\end{document}U, 242\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{242}$$\end{document}Pu, and 243\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{243}$$\end{document}Am within a wide interval of incident energy has been investigated systematically. Based on the available experimental excitation functions, the dependence of calculated synthesis cross-sections on collision orientations has been studied thoroughly. The total kinetic energy (TKE) of these collisions with fixed collision orientation shows orientation dependence, which can be used to predict the tendency of kinetic energy diffusion. The TKE is dependent on incident energies, as discussed in this paper. We applied the method based on the Coulomb barrier distribution function in our calculations. This allowed us to approximately consider all the collision orientations from tip-tip to side-side. The calculations of excitation functions of 48\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{48}$$\end{document}Ca + 238\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{238}$$\end{document}U, 48\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{48}$$\end{document}Ca + 242\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{242}$$\end{document}Pu, and 48\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{48}$$\end{document}Ca + 243\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{243}$$\end{document}Am are in good agreement with the available experimental data. The isospin effect of projectiles on production cross-sections of moscovium isotopes and the influence of the entrance channel effect on the synthesis cross-sections of superheavy nuclei are also discussed in this paper. The synthesis cross-section of new moscovium isotopes 278-286\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{278-286}$$\end{document}Mc was predicted to be as large as hundreds of pb in the fusion-evaporation reactions of 35,37\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{35,37}$$\end{document}Cl + 248\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{248}$$\end{document}Cf, 38,40\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{38,40}$$\end{document}Ar + 247\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{247}$$\end{document}Bk, 39,41\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{39,41}$$\end{document}K + 247\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{247}$$\end{document}Cm, 40,42,44,46\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{40,42,44,46}$$\end{document}Ca + 243\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{243}$$\end{document}Am, 45\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{45}$$\end{document}Sc + 244\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{244}$$\end{document}Pu, and 46,48,50\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{46,48,50}$$\end{document}Ti + 237\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{237}$$\end{document}Np, 51\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{51}$$\end{document}V + 238\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{238}$$\end{document}U at some typical excitation energies.
引用
收藏
相关论文
共 50 条
  • [21] AGATA: nuclear structure advancements with fusion-evaporation reactions
    G. de Angelis
    G. Benzoni
    B. Cederwall
    A. Korichi
    S. Leoni
    A. López-Martens
    J. Nyberg
    E. S. Paul
    J. J. Valiente-Dobòn
    The European Physical Journal A, 59
  • [22] THE SHAPE OF MAGNETIC SUBSTATE DISTRIBUTIONS IN FUSION-EVAPORATION REACTIONS
    ZOBEL, V
    CLEEMANN, L
    EBERTH, J
    HELLMEISTER, HP
    NEUMANN, W
    WIEHL, N
    NUCLEAR INSTRUMENTS & METHODS, 1980, 171 (02): : 223 - 231
  • [23] Evaluation of fusion-evaporation cross-section calculations
    Blank, B.
    Canchel, G.
    Seis, F.
    Delahaye, P.
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2018, 416 : 41 - 49
  • [24] Measurement of the Production Cross Sections for Isotopes of Transfermium Elements in Complete Fusion Reactions with the Subsequent Evaporation of a Proton and Neutrons
    A. V. Yeremin
    M. S. Tezekbayeva
    A. G. Popeko
    O. N. Malyshev
    A. Lopez-Martens
    K. Hauschild
    O. Dorvaux
    B. Gall
    A. V. Isaev
    A. V. Karpov
    A. N. Kuznetsov
    A. A. Kuznetsova
    Yu. A. Popov
    A. I. Svirikhin
    E. A. Sokol
    M. L. Chelnokov
    V. I. Chepigin
    P. Moshat
    Physics of Particles and Nuclei Letters, 2019, 16 : 224 - 228
  • [25] Measurement of the Production Cross Sections for Isotopes of Transfermium Elements in Complete Fusion Reactions with the Subsequent Evaporation of a Proton and Neutrons
    Yeremin, A. V.
    Tezekbayeva, M. S.
    Popeko, A. G.
    Malyshev, O. N.
    Lopez-Martens, A.
    Hauschild, K.
    Dorvaux, O.
    Gall, B.
    Isaev, A. V.
    Karpov, A. V.
    Kuznetsov, A. N.
    Kuznetsova, A. A.
    Popov, Yu. A.
    Svirikhin, A. I.
    Sokol, E. A.
    Chelnokov, M. L.
    Chepigin, V. I.
    Moshat, P.
    PHYSICS OF PARTICLES AND NUCLEI LETTERS, 2019, 16 (03) : 224 - 228
  • [26] Fusion-evaporation cross-sections for 48Ca+154Sm near the Coulomb barrier
    Stefanini, AM
    Trotta, M
    Behera, BR
    Corradi, L
    Fioretto, E
    Gadea, A
    Latina, A
    Szilner, S
    Wu, YW
    Beghini, S
    Montagnoli, G
    Scarlassara, F
    Chizhov, AY
    Itkis, IM
    Kondratiev, NA
    Pokrovskiy, IV
    Sagaidak, RN
    Kniajeva, GN
    Kozulin, EM
    Voskressensky, VM
    Courtin, S
    Haas, F
    Rowley, N
    EUROPEAN PHYSICAL JOURNAL A, 2005, 23 (03): : 473 - 480
  • [27] DYNAMICAL EFFECTS IN LOW-ENERGY FUSION-EVAPORATION REACTIONS
    VIESTI, G
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1995, 209 : 65 - NUCL
  • [28] Observation of a double giant dipole resonance in fusion-evaporation reactions
    Viesti, G
    Rizzi, V
    Cinausero, N
    Gelli, N
    Gadea, A
    Bazzacco, D
    Algora-Pineda, A
    Appelbee, D
    de Angelis, G
    Belcari, N
    De Poli, M
    Drake, TE
    Fabris, D
    Farnea, E
    Fioretto, E
    Galindo-Uribarri, A
    Krolas, W
    Kroll, T
    Lucarelli, F
    Lunardi, S
    Lunardon, M
    Martinez, T
    Menegazzo, R
    Nayak, BK
    Nebbia, G
    Napoli, DR
    Nyako, B
    Petrache, C
    Podolyak, Z
    Prete, G
    Alvarez, CR
    Spolaore, P
    Ur, C
    Zuber, K
    PHYSICAL REVIEW C, 2001, 63 (03): : 346111 - 346115
  • [29] ENERGY AND PROJECTILE DEPENDENCE OF NUCLEAR ALIGNMENT IN FUSION-EVAPORATION REACTIONS
    ZOBEL, V
    CLEEMANN, L
    EBERTH, J
    HECK, T
    HUSING, K
    NEUMANN, W
    NOLTE, M
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, 1983, 207 (03): : 389 - 394
  • [30] ANGULAR-MOMENTUM EFFECTS IN FUSION-FISSION AND FUSION-EVAPORATION REACTIONS
    PLASIL, F
    JOURNAL DE PHYSIQUE, 1980, 41 : 183 - 199