Coulomb and nuclear excitations of Zn-70 and Ni-68 at intermediate energy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00547002" target="_blank" >RIV/61389005:_____/21:00547002 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevC.104.034318" target="_blank" >https://doi.org/10.1103/PhysRevC.104.034318</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.104.034318" target="_blank" >10.1103/PhysRevC.104.034318</a>
Alternative languages
Result language
angličtina
Original language name
Coulomb and nuclear excitations of Zn-70 and Ni-68 at intermediate energy
Original language description
The reduced transition probabilities B(E2, 0(g.s.)(+) -> 2(1)(+), 2(2)(+)) in (70) Zn and the full B(E2, 0(g.s.)(+) -> 2(+)) strength up to S-n = 7.79 MeV in Ni-68 have been determined at the LISE/GANIL facility using the Coulomb-excitation technique at intermediate beam energy on a Pb-208 target. The gamma rays emitted in-flight were detected with an array of 46BaF(2) crystals. The angles of the deflected nuclei were determined in order to disentangle and extract the Coulomb and nuclear contributions to the excitation of the 2(+) states. The measured B(E2, 0(g.s.)(+) -> 2(1)(+)) of 1432(124) e(2) fm(4) for Zn-70 falls in the lower part of the published values which clustered either around 1600 or above 2000 e(2) fm(4), while the B(E2, 0(g.s.)(+) -> 2(1)(+)) of 53(7) e(2) fm(4) agrees very well with the two published values. The relatively low B(E2, 0(g.s.)(+) -> 2(1)(+)) of 301(38) e(2) fm(4) for Ni-68 agrees with previous studies and confirms a local magicity at Z = 28, N = 40. Combining the results of the low-energy spectra of Ni-68 and Zn-70 and their shell-model interpretations, it is interesting to notice that four different shapes (spherical, oblate, prolate, and triaxial) are present. Finally, a summed E2 strength of only about 150 e(2) fm(4) has been found experimentally at high excitation energy, likely due to proton excitations across the Z = 28 gap. The experimental distribution of this high-energy E2 excitation agrees with shell-model calculations, but its strength is about two times weaker.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/LM2018115" target="_blank" >LM2018115: Système de Production d’Ions Radioactifs Accélérés en Ligne - participation of the Czech Republic</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review C
ISSN
2469-9985
e-ISSN
2469-9993
Volume of the periodical
104
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
034318
UT code for WoS article
000704561300001
EID of the result in the Scopus database
2-s2.0-85116253583