Independent verification of element 114 Production in the ;{48}Ca + ;{242}Pu reaction

Independent verification of the production of element 114 in the reaction of 244-MeV ;{48}Ca with ;{242}Pu is presented. Two chains of time- and position-correlated decays have been assigned to ;{286}114 and ;{287}114. The observed decay modes, half-lives, and decay energies agree with published res...

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Veröffentlicht in:	Physical review letters 2009-09, Vol.103 (13), p.132502-132502
Hauptverfasser:	Stavsetra, L, Gregorich, K E, Dvorak, J, Ellison, P A, Dragojević, I, Garcia, M A, Nitsche, H
Format:	Artikel
Sprache:	eng
Schlagworte:	ACTINIDE NUCLEI ALKALINE EARTH ISOTOPES ALPHA DECAY RADIOISOTOPES BEAMS CALCIUM 48 CALCIUM 48 BEAMS CALCIUM 48 REACTIONS CALCIUM ISOTOPES CROSS SECTIONS DECAY ELEMENT 114 ELEMENTS ENERGY RANGE EVEN-EVEN NUCLEI HALF-LIFE HEAVY ION REACTIONS HEAVY NUCLEI INTERMEDIATE MASS NUCLEI ION BEAMS ISOTOPES MEV RANGE MEV RANGE 100-1000 NUCLEAR DECAY NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEAR REACTIONS NUCLEI PLUTONIUM 242 PLUTONIUM 242 TARGET PLUTONIUM ISOTOPES RADIOISOTOPES SPONTANEOUS FISSION RADIOISOTOPES STABLE ISOTOPES TARGETS TRANSACTINIDE ELEMENTS TRANSPLUTONIUM ELEMENTS TRANSURANIUM ELEMENTS VERIFICATION YEARS LIVING RADIOISOTOPES
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Zusammenfassung:	Independent verification of the production of element 114 in the reaction of 244-MeV ;{48}Ca with ;{242}Pu is presented. Two chains of time- and position-correlated decays have been assigned to ;{286}114 and ;{287}114. The observed decay modes, half-lives, and decay energies agree with published results. The measured cross sections at a center-of-target energy of 244 MeV for the ;{242}Pu(;{48}Ca,3-4n);{287,286}114 reactions were 1.4_{-1.2};{+3.2} pb each, which are lower than the reported values.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PHYSREVLETT.103.132502