Investigation of the Pu 244 ( Ca 48 , x n ) Fl 292 − x reaction with the LBNL SHREC detector: Investigation of decay chains of isotopes of flerovium ( Z = 114 )

Year: 2025

Type: article

Abstract: The Pu244(Ca48,xn)Fl292−x reaction was investigated at Lawrence Berkeley National Laboratory’s 88 Inch Cyclotron using the Berkeley Gas-filled Separator (BGS), the newly installed Superheavy Recoil detector, along with an upgraded digital electronics and data acquisition system. Seven decay chains were observed starting with an evaporation residue, followed by a single α decay and a spontaneous fission. The decay characteristics of these seven decay chains led to an assignment to Fl288, the product of the 4n reaction channel. Two additional chains were (tentatively) assigned to the decay of the 3n exit channel, Fl289. Cross sections for the 4n and 3n exit channels were σprod=6.7(2536) pb and σprod=1.6(1122) pb, respectively. Another decay chain, tentatively assigned to the 5n exit channel through the Ca48+Pu244 reaction or the 3n exit channel of the Ca48+Pu242 reaction, was also detected. Detailed information regarding the observed decay chains and their nuclear structure aspects is discussed, along with the performance of the BGS and the new detection system.

Source: Physical Review C

DOI: 10.1103/kjyy-t1nk

Authors: J. M. Gates, R. Orford, D. Rudolph, A. T. Chemey, R. M. Clark, H. L. Crawford, P. Fallon, C. M. Folden, F. H. Garcia, P. Golubev, J. A. Gooding, K. E. Gregorich, R. A. Henderson, Y. Hrabar, A. S. Kirkland, M. McCarthy, J. A. Mildon, J. L. Pore, C. Porzio, E. Rice, L. G. Sarmiento, M. A. Stoyer, K. Thomas, P. T. Wooddy

Institutions: Lawrence Berkeley National Laboratory, Lund University, Oregon State University, Texas A&M University, University of California, Berkeley, Lawrence Livermore National Laboratory

Language: English

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: U.S. Department of Energy, Oregon State University, Wenner-Gren Stiftelserna, Carl Tryggers Stiftelse för Vetenskaplig Forskning, Knut och Alice Wallenbergs Stiftelse, Kungliga Fysiografiska Sällskapet i Lund, Office of Science, Basic Energy Sciences, Nuclear Physics, Lawrence Livermore National Laboratory, Oak Ridge National Laboratory, Lawrence Berkeley National Laboratory

OpenAlex ID: W4417211722