Toward the Discovery of New Elements: Production of Livermorium (Z=116) with Ti 50
Publication Date
10-25-2024
Document Type
Article
Publication Title
Physical Review Letters
Volume
133
Issue
17
DOI
10.1103/PhysRevLett.133.172502
Abstract
The Pu244(Ti50,xn)Lv294-x reaction was investigated at Lawrence Berkeley National Laboratory's 88-Inch Cyclotron. The experiment was aimed at the production of a superheavy element with Z≥114 by irradiating an actinide target with a beam heavier than Ca48. Produced Lv ions were separated from the unwanted beam and nuclear reaction products using the Berkeley Gas-filled Separator and implanted into a newly commissioned focal-plane detector system. Two decay chains were observed and assigned to the decay of Lv290. The production cross section was measured to be σprod=0.44(-0.28+0.58) pb at a center-of-target center-of-mass energy of 220(3) MeV. This represents the first published measurement of the production of a superheavy element near the "island of stability,"with a beam of Ti50 and is an essential precursor in the pursuit of searching for new elements beyond Z=118.
Funding Number
DE-AC02-05CH11231
Funding Sponsor
Basic Energy Sciences
Department
Chemistry
Recommended Citation
J. M. Gates, R. Orford, D. Rudolph, C. Appleton, B. M. Barrios, J. Y. Benitez, M. Bordeau, W. Botha, C. M. Campbell, J. Chadderton, A. T. Chemey, R. M. Clark, H. L. Crawford, J. D. Despotopulos, O. Dorvaux, N. E. Esker, P. Fallon, C. M. Folden, and B. J.P. Gall. "Toward the Discovery of New Elements: Production of Livermorium (Z=116) with Ti 50" Physical Review Letters (2024). https://doi.org/10.1103/PhysRevLett.133.172502
