Comparison of reactions for the production of (258,257)Db : Pb-208(V-51, xn) and Bi-209(Ti-50, xn)
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Excitation functions for the 1n and 2n exit channels of the 208Pb(51V,xn)259-xDb reaction were measured. A maximum cross section of the 1n exit channel of 2070-760+1100 pb was measured at an excitation energy of 16.0 1.8 MeV. For the 2n exit channel, a maximum cross section of 1660-370+450 pb was measured at 22.0 1.8 MeV excitation energy. The 1n excitation function for the 209Bi(50Ti,n)258Db reaction was remeasured, resulting in a cross section of 5480-1370+1730 pb at an excitation energy of 16.0 1.6 MeV, in agreement with previous values [F. P. Heberger, Eur. Phys. J. A 12, 57 (2001)]. Differences in cross section maxima are discussed in terms of the fusion probability below the barrier. 2008 The American Physical Society.
author list (cited authors)
Gates, J. M., Nelson, S. L., Gregorich, K. E., Dragojevic, I., Dullmann, C. E., Ellison, P. A., ... Nitsche, H.
complete list of authors
Gates, JM||Nelson, SL||Gregorich, KE||Dragojevic, I||Dullmann, Ch E||Ellison, PA||Folden, CMIII||Garcia, MA||Stavsetra, L||Sudowe, R||Hoffman, DC||Nitsche, H