TRY TO EXTRACT THE PREFORMATION PROBABILITY OF α-CLUSTER AT THE SURFACE OF HEAVY NUCLEI BY MEANS OF α-TRANSFER REACTIONS LEADING TO THE CONTINUUM STATES

  • The method of parametrization of EFR-DWBA overlap integral developed by T.Udagawa and T.Tamura et al.,[1] is improved. Using the improved method we have fitted the experimental double differential energy spectrum of 8Be-cluster coming from the reaction 208Pb (12C, 8Be) 212Po leading to the continuum states and extracted the preformation probability of α-cluster at the surface of 212Po nucleus. Within the range of calculation error, the result is in agreement with that extracted from fitting the experimental data of α-decay.
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  • [1] T. Udagawa, T. Tamura and D. Price, Phys. Rev., C21(1980), 1891.[2] T. Udagawa, T. Tamura and B. T. Kin, Phys. Lett., 82B(1978), 349; T. Udagawa and T. Tamura,Phys. Rev. Lett., 41(1978), 1770; 42(1979), 1501; H. Frolieh, T. Shimoda, M. Ishibara.K. Nagatani, T. Udagawa and T. Tamura, Phys. Rev. Lett., 42(1979), 1518; M. Ishiham, T. Shimoda,H. Frolich, H. Kamitsubo, K. Kagatani, T. Udagawa and T. Tamura, Phys. Rev. Lett., 43(1979), 111.[3] T. Tamura and K. S. Low, Computer Physics Communications, 8(1974), 349.[4] 中国科学院近代物理研究所内部资料, 韩飞, 徐树威.[5] R. M. Devries, Computer Physics Communications 11 (1976), 249.[6] 中国科学院近代物理研究所内部资料, 缪容之, 徐树威.[7] R. M. Devries, Phys. Rev., C11(1975), 2105.[8] 徐树威, 冉启惠, 马洪范, 高能物理与核物理, 2(1978), 534.[9] M. C. Mermaz, Phys. Rev., C20(1979), 1962.[10] L. Milazzo-Colli, G. M. Braga-Marcazzan and M. hlilazzo, NUOWOC imento 308(1975), 632.[11] D. Eurqth, Phys. Rev., C7(1973), 1390.[12] R. Bonetti and L. Milazzo-Colli, Phys. Lett., 49B(1974), 17.[13] J. 0. Rasmussen, Phys. Rev., 113(1959), 1593.[14] W. Diinnweber, H. Ho, K. Haberkaut and J. P. Wurm, Proc. Int. Conf. on Reactions batween Complex Nuclei, Nashville, U.S.A.,1(1974), 71.[15] 中国科学院近代物理研究所内部资料, 徐树威, 昊国华.[16] W. G. Davies. R. M. Devries, G. C. Ball, J. S. Forster, W. Mclatchie, D. Shapirz, J. Toke and R. E. Warner, Nucl. Phys., A269(1976), 477.
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XU Shu-Wei, WU Guo-Hua, MIAO Rong-Zhi and HAN Fei. TRY TO EXTRACT THE PREFORMATION PROBABILITY OF α-CLUSTER AT THE SURFACE OF HEAVY NUCLEI BY MEANS OF α-TRANSFER REACTIONS LEADING TO THE CONTINUUM STATES[J]. Chinese Physics C, 1983, 7(1): 95-100.
XU Shu-Wei, WU Guo-Hua, MIAO Rong-Zhi and HAN Fei. TRY TO EXTRACT THE PREFORMATION PROBABILITY OF α-CLUSTER AT THE SURFACE OF HEAVY NUCLEI BY MEANS OF α-TRANSFER REACTIONS LEADING TO THE CONTINUUM STATES[J]. Chinese Physics C, 1983, 7(1): 95-100. shu
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Received: 1900-01-01
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TRY TO EXTRACT THE PREFORMATION PROBABILITY OF α-CLUSTER AT THE SURFACE OF HEAVY NUCLEI BY MEANS OF α-TRANSFER REACTIONS LEADING TO THE CONTINUUM STATES

    Corresponding author: XU Shu-Wei,

Abstract: The method of parametrization of EFR-DWBA overlap integral developed by T.Udagawa and T.Tamura et al.,[1] is improved. Using the improved method we have fitted the experimental double differential energy spectrum of 8Be-cluster coming from the reaction 208Pb (12C, 8Be) 212Po leading to the continuum states and extracted the preformation probability of α-cluster at the surface of 212Po nucleus. Within the range of calculation error, the result is in agreement with that extracted from fitting the experimental data of α-decay.

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