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Título:
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B(E2; 2_(1)^(+) ? 0_(1)^(+)) value in Kr^(90)
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Autores:
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Fraile Prieto, Luis Mario ;
Mach, H. ;
Paziy, V. ;
Olaizola, B. ;
Vedia, V.
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Tipo de documento:
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texto impreso
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Editorial:
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Amer Physical Soc, 2014-12-01
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física nuclear
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Tipo = Artículo
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Resumen:
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A smooth onset of collectivity in Kr^(88,92,94,96) has been determined from reported B(E2; 2_(1)^(+) ? 0_(1)^(+)) and E(2+ 1 ) values. This is in contrast to the sudden onset in even-even Zr, Mo, and Sr isotopes. Our objective was to complete the systematics by determining the B(E2; 2+ 1 ? 0+ 1 ) value in Kr^(90), which was produced by cold-neutron-induced fission of 235U. The lifetime of the 2+ 1 state in Kr^(90) was measured via the electronic ? -? timing technique using the EXILL and FATIMA spectrometers. Based on the measured mean lifetime of ? = 15(10) ps, the B(E2; 2_(1)^(+) ? 0_(1)^(+)) value of 13^(+26)_(?5) W.u. in Kr^(90) is determined for the first time and the smooth onset of deformation in the even-even Kr isotopes beyond neutron number N = 50 is confirmed.
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En línea:
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https://eprints.ucm.es/id/eprint/29275/1/PhysRevC.90.067301.pdf
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