Complete and incomplete fusion ofBe9+Tm169

Recent developments in fusion and direct reactions with weakly bound nuclei

“…The data for the 9 Be+ 144 Sm, 9 Be+ 208 Pb, 9 Be+ 64 Zn [363,73], 9 Be+ 169 Tm, 9 Be + 181 Ta, 9 Be + 187 Re [341,340] and 9 Be + 27 Al systems [364] are in agreement with CC calculations. This indicates that, at energies slightly above the barrier, there is no significant influence of the breakup and transfer channels on TF.…”

“…From 2006 to the present, many authors measured CF cross sections in reactions induced by 9 Be beams. They determined cross sections for the 89 Y, 124 Sn, 144 Sm, 169 Tm, 181 Ta, 187 Re and 186 W targets [342,[337][338][339][340][341]361]. The 9 Be + 144 Sm fusion was measured at the TANDAR laboratory, Buenos Aires, by the detection of X-rays emitted in the electron capture decay of the residual nuclei [339,361].…”

“…All the other systems were measured by the gamma ray method, on-line and/or off-line. The 9 Be + 89 Y and 9 Be + 124 Sn systems were measured at the BARC-TIFR in Mumbai [337,338], the 9 Be + 169 Tm, 181 Ta, 187 Re systems were measured at Lanzhou [340,341] and the 9 Be + 186 W system was measured at the CIAE, Beijing [342].…”

Origins of Incomplete Fusion Products and the Suppression of Complete Fusion in Reactions of Li7

“…Fusion requires the system to overcome the barrier generated by the repulsive Coulomb and attractive nuclear potentials. A long-standing challenge in reactions involving light weakly bound stable nuclides (e.g., 6;7;8 Li, 9 Be) is that above-barrier complete fusion, experimentally defined as complete charge capture, is suppressed by ∼30% relative to both calculations [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16], and to measurements for comparable well-bound systems [2,3,[8][9][10].…”

“…Suppression of complete fusion has been found to be associated with large yields of elements heavier than the target nucleus but lighter than the products of complete fusion [1,3,5,6,8,10,13,14,16]. These are usually called incomplete fusion products [1,17].…”