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Report No.

Alpha-photon coincidence spectroscopy along element 115 decay chains

Rudolph, D.*; Forsberg, U.*; Golubev, P.*; Sarmiento, L. G.*; Yakushev, A.*; Andersson, L.-L.*; Di Nitto, A.*; D$"u$llmann, Ch. E.*; Gates, J. M.*; Gregorich, K. E.*; Gross, C. J.*; Herzberg, R.-D.*; He${ss}$berger, F. P.*; Khuyagbaatar, J.*; Kratz, J. V.*; Rykaczewski, K.*; Sch$"a$del, M.; ${AA}$berg, S.*; Ackermann, D.*; Block, M.*; Brand, H.*; Carlsson, B. G.*; Cox, D.*; Derkx, X.*; Eberhardt, K.*; Even, J.*; Fahlander, C.*; Gerl, J.*; J$"a$ger, E.*; Kindler, B.*; Krier, J.*; Kojouharov, I.*; Kurz, N.*; Lommel, B.*; Mistry, A.*; Mokry, C.*; Nitsche, H.*; Omtvedt, J. P.*; Papadakis, P.*; Ragnarsson, I.*; Runke, J.*; Schaffner, H.*; Schausten, B.*; Th$"o$rle-Pospiech, P.*; Torres, T.*; Traut, T.*; Trautmann, N.*; T$"u$rler, A.*; Ward, A.*; Ward, D. E.*; Wiehl, N.*

Produced in the reaction of $$^{48}$$Ca beam with an $$^{243}$$Am target, thirty correlated $$alpha$$-decay chains were observed. Observed decay chains are consistent with a previously reported decay chain, which confirms the identification of the element 115. In addition, an $$alpha$$-photon coincidence measurement was performed, and $$gamma$$ rays as well as X-ray candidates were observed in this decay chain. The $$gamma$$-ray observation in the heaviest region of superheavy nuclei brings a big progress in the superheavy nuclear structure studies.



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Category:Physics, Multidisciplinary



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