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Experimental Study of the 249-251Cf + 48Ca Reactions: Toward the Magic Neutron Number N=184

Conference · · Exotic Nuclei
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  1. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation); Vanderbilt University
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  3. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Warsaw (Poland)
  6. Vanderbilt Univ., Nashville, TN (United States)
  7. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
+ Show Author Affiliations

Recently several complete-fusion reactions have been studied at the DGFRS setup (FLNR, JINR) with an aim of exploring the boundaries of the “Island of Stability” of the superheavy elements (nuclei around Z=114-126 and N=184). During the 249-251Cf+48Ca run with mixed Cf target (50.7% of 249Cf, 12.9% of 250Cf, and 36.4% of 251Cf) just one decay chain was detected at the 252-MeV beam energy which was attributed to the previously observed 294Og isotope, the product of the 249Cf(48Ca,3n)294Og reaction; the corresponding reaction cross section was measured. For the 251Cf(48Ca, 3-4n)295,296Og reactions no Og decays were detected during this run. Here, future possibilities for synthesis of new nuclides in the region of SHEs, namely more neutron-rich Lv, Ts and Og isotopes and new nuclides with higher Z (119 and 120), are discussed.

Research Organization:
Vanderbilt Univ., Nashville, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Laboratory Directed Research and Development (LDRD) Program; Russian Foundation for Basic Research
DOE Contract Number:
FG02-88ER40407; AC05-00OR22725; AC52-07NA27344
OSTI ID:
1809136
Journal Information:
Exotic Nuclei, Journal Name: Exotic Nuclei
Country of Publication:
United States
Language:
English

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Related Subjects

alpha decay
compound nucleus
reaction cross section
superheavy nuclei