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Author AGATA Collaboration (Lalovic, N. et al); Gadea, A.; Domingo-Pardo, C.
Title Study of isomeric states in Pb-198, Pb-200, Pb-202, Pb-206 and Hg-206 populated in fragmentation reactions Type Journal Article
Year 2018 Publication Journal of Physics G Abbreviated Journal J. Phys. G
Volume 45 Issue (up) 3 Pages 035105 - 27pp
Keywords gamma-ray spectroscopy; relativistic projectile fragmentation; direct reactions; isomeric decays; electromagnetic transitions; nuclear shell model
Abstract Isomeric states in isotopes in the vicinity of doubly-magic Pb-208 were populated following reactions of a relativistic Pb-208 primary beam impinging on a Be-9 fragmentation target. Secondary beams of Pb-198,Pb-200,Pb-202,Pb-206 and Hg-206 were isotopically separated and implanted in a passive stopper positioned in the focal plane of the GSI Fragment Separator. Delayed gamma rays were detected with the Advanced Gamma Tracking Array (AGATA). Decay schemes were reevaluated and interpreted with shell-model calculations. The momentum-dependent population of isomeric states in the two-nucleon hole nuclei Pb-206/Hg-206 was found to differ from the population of multi neutron-hole isomeric states in Pb-198,Pb-200,Pb-202.
Address [Lalovic, N.; Rudolph, D.; Sarmiento, L. G.; Golubev, P.; Fahlander, C.; Gellanki, J.] Lund Univ, Dept Phys, SE-22100 Lund, Sweden, Email: Natasa.Lalovic@nuclear.lu.se
Corporate Author Thesis
Publisher Iop Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0954-3899 ISBN Medium
Area Expedition Conference
Notes WOS:000424906600001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3488
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Author IDS Collaboration (Lica, R. et al); Morales, A.I.
Title beta decay studies of n-rich Cs isotopes with the ISOLDE Decay Station Type Journal Article
Year 2017 Publication Journal of Physics G Abbreviated Journal J. Phys. G
Volume 44 Issue (up) 5 Pages 054002 - 14pp
Keywords beta decay; exotic nuclei; nuclear deformation; ISOLDE
Abstract Neutron-rich Ba isotopes are expected to exhibit octupolar correlations, reaching their maximum in isotopes around mass A = 146. The odd-A neutron-rich members of this isotopic chain show typical patterns related to non-axially symmetric shapes, which are however less marked compared to even-A ones, pointing to a major contribution from vibrations. In the present paper we present results from a recent study focused on Cs148-150 beta-decay performed at the ISOLDE Decay Station equipped with fast-timing detectors. A detailed analysis of the measured decay half-lives and decay scheme of Ba-149 is presented, giving a first insight in the structure of this neutron-rich nucleus.
Address [Lica, R.; Borge, M. J. G.; Madurga, M.; Kurcewicz, J.] CERN, CH-1211 Geneva 23, Switzerland, Email: giovanna.benzoni@mi.infn.it
Corporate Author Thesis
Publisher Iop Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0954-3899 ISBN Medium
Area Expedition Conference
Notes WOS:000398756400002 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3053
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Author Fomichev, A.S.; Mukha, I.; Stepantsov, S.V.; Grigorenko, L.V.; Litvinova, E.V.; Chudoba, V.; Egorova, I.A.; Golovkov, M.S.; Gorshkov, A.V.; Gorshkov, V.A.; Kaminski, G.; Krupko, S.A.; Parfenova, Y.L.; Sidorchuk, S.I.; Slepnev, R.S.; Ter-Akopian, G.M.; Wolski, R.; Zhukov, M.V.
Title Lifetime of (26)S and a limit for its 2p decay energy Type Journal Article
Year 2011 Publication International Journal of Modern Physics E Abbreviated Journal Int. J. Mod. Phys. E
Volume 20 Issue (up) 6 Pages 1491-1508
Keywords Properties of nuclei; nuclear energy
Abstract The unknown isotope (26)S, expected to decay by two-proton (2p) emission, was studied theoretically and searched experimentally. The structure of this nucleus was examined within the relativistic mean field (RMF) approach. A method for taking into account the many-body structure in the three-body decay calculations was developed. The results of the RMF calculations were used as an input for the three-cluster decay model optimized for the study of a possible 2p decay branch of this nucleus. The experimental search for (26)S was performed by fragmentation of a 50.3 A MeV (32)S beam. No events of a particles table (26)S or (25)P (a presumably proton-unstable subsystem of (26)S) were observed. Based on the obtained production systematics, an upper half-life limit of T(1/2) < 79 ns was established from the time-of-flight through the fragment separator. Together with the theoretical lifetime estimates for two-proton decay, this gives a decay energy limit of Q(2p) > 640 keV for (26)S. Analogous limits for (25)P are found as T(1/2) < 38 ns and Q(p) > 110 keV. In the case that the one-proton emission is the main branch of the (26)S decay, a limit Q(2p) > 230 keV would follow for this nucleus. According to these limits, it is likely that (26)S resides in the picosecond life time range
Address [Fomichev, AS; Stepantsov, SV; Grigorenko, LV; Chudoba, V; Golovkov, MS; Gorshkov, AV; Gorshkov, VA; Kaminski, G; Krupko, SA; Parfenova, YL; Sidorchuk, SI; Slepnev, RS; Ter-Akopian, GM; Wolski, R] JINR, Flerov Lab Nucl React, RU-141980 Dubna, Russia, Email: fomichev@jinr.ru
Corporate Author Thesis
Publisher World Scientific Publ Co Pte Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0218-3013 ISBN Medium
Area Expedition Conference
Notes WOS:000292644900010 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 693
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Author Garcia Canal, C.A.; Tarutina, T.; Vento, V.
Title Analysis of Nuclear Effects in Structure Functions and Their Connection with the Binding Energy of Nuclei Type Journal Article
Year 2023 Publication Brazilian Journal of Physics Abbreviated Journal Braz. J. Phys.
Volume 53 Issue (up) 6 Pages 161 - 8pp
Keywords Structure functions; Deep inelastic scattering; EMC effect; Nuclear dynamics
Abstract We describe nuclear effects in structure functions of nuclei in DIS by means of a multiplicative factor beta(A)(x) which differentiates the structure function of the bound nucleons from that of the free nucleons. Our analysis determines that beta(A)(x) establishes a relation between the quark-gluon dynamics expressed by the bound nucleon structure functions and the nuclear dynamics as described by the well-known semi-empirical Bethe-Weizsacker mass formula. This relation corroborates a connection between the underlying quark-gluon dynamics and the phenomenological nuclear dynamics.
Address [Canal, C. A. Garcia] Univ La Plata, Dept Phys, Cc 67, RA-1900 La Plata, Argentina, Email: ttarutina@gmail.com
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0103-9733 ISBN Medium
Area Expedition Conference
Notes WOS:001087936700001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 5766
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Author Rubio, B.; Gelletly, W.; Algora, A.; Nacher, E.; Tain, J.L.
Title Beta decay studies with total absorption spectroscopy and the Lucrecia spectrometer at ISOLDE Type Journal Article
Year 2017 Publication Journal of Physics G Abbreviated Journal J. Phys. G
Volume 44 Issue (up) 8 Pages 084004 - 25pp
Keywords beta decay; strength functions; total absorption gamma spectroscopy; nuclear shapes
Abstract Here we present the experimental activities carried out at ISOLDE with the total absorption spectrometer Lucrecia, a large 4 pi scintillator detector designed to absorb a full gamma cascade following beta decay. This spectrometer is designed to measure beta-feeding to excited states without the systematic error called Pandemonium. The set up allows the measurement of decays of very short half life. Experimental results from several campaigns, that focus on the determination of the shapes of beta-decaying nuclei by measuring their beta decay strength distributions as a function of excitation energy in the daughter nucleus, are presented.
Address [Rubio, B.; Gelletly, W.; Algora, A.; Tain, J. L.] Univ Valencia, CSIC, IFIC, E-46980 Paterna, Spain, Email: berta.rubio@ific.uv.es
Corporate Author Thesis
Publisher Iop Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0954-3899 ISBN Medium
Area Expedition Conference
Notes WOS:000404730700001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3192
Permanent link to this record