Structure of the145Sm states from the145Eu Decay

Adam, J.; Dobeš, Jan; Fér, J.; Kracík, B.; Куглер, А.; Zhelev, Zh.; Penev, I.; Stoyanov, Ch.

doi:10.1007/bf01959607

Cited by 4 publications

(10 citation statements)

References 26 publications

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“…Comparing these experimentally determined quantities with those calculated on the basis of the proposed decay scheme, we can test the placement of the corresponding transitions [10,13]. This coefficient indicates which part of the transition (in %) is in coincidence with any other transition.…”

Section: Methodsmentioning

confidence: 97%

“…It was inserted in the well of the q5254 • 200 mm NaI(T1) crystal serving as an anticoincidence shielding [9,10]. The Ge(Li) detector had the relative efficiency of 6% and energy resolution of 2.25 keV at 1332 keV.…”

Section: Methodsmentioning

confidence: 99%

“…The most detailed information about excited states of 146Sm up to the 3.8 MeV excitation energy and up to the spin 6 has been obtained from studies of the betadecay of 146Eu (U=4-) [1][2][3][4][5]. The most detailed information about excited states of 146Sm up to the 3.8 MeV excitation energy and up to the spin 6 has been obtained from studies of the betadecay of 146Eu (U=4-) [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…The preliminary results of the present work [7] are included in [6]. The details of the experiment are described in reports [8].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Structure of the146Sm states from the146Eu decay

Adam¹,

Dobeš²,

Kracík³

et al. 1992

Z. Physik A - Hadrons and Nuclei

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Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The preliminary results of the present work [7] are included in [6]. The details of the experiment are described in reports [8].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structure of the146Sm states from the146Eu decay

Adam¹,

Dobeš²,

Kracík³

et al. 1992

Z. Physik A - Hadrons and Nuclei

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“…We also mention here that many ~45Sm low-spin states have been observed [3] in 145Eu 1st-forbidden fldecay, and first results of an (~, n) study were reported [4] at a conference, a44Sm (d, p) experiments [-5, 6] have…”

Section: Introductionmentioning

confidence: 95%

Three-nucleon yrast states in145Sm

Piiparinen

Nagai

Kleinheinz

et al. 1991

Z. Physik A - Hadrons and Nuclei

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Particle-quadrupole and particle-octupole coupled states in 145Sm

et al. 1997

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In the present paper we present part of the results obtained in the study of above-yrast states in 145 Sm using the 142 Nd(α,Xnγ) reaction. γ-γ, angular distribution, polarization, and excitation function measurements were performed. All multiplet members of the 3 − ⊗ νf 7 2 and the 2 + ⊗ νf 7 2 multiplets have been observed. The unperturbed energies for the 2 + ⊗ νf 7 2 multiplet have been estimated using the extensive information existing on one neutron transfer reactions. The results are compared with the 143 Nd case. The similarity is remarkable.PACS: 27.60.+j; 21.10.Re Nuclei in the neighbourhood of spherical nuclei are specially suited to perform studies of particle core-excitation couplings since very often the low-lying states in the core are well isolated. The difficult part from the experimental point of view is to find the appropriate reaction to populate all members of the multiplet. In a first approximation, they are not supposed to be excited in transfer reactions. It might happen however that the particle-core coupled states mix with other states with the same spin and parity, but with high spectroscopic factor, like for instance single particle excitations. In this case core-coupled states can be observed in one-nucleon transfer reactions. But in general, it is difficult to detect all states by this method due to the lack of appropriate close-lying states to mix with.A very attractive idea is to use a reaction like fusionevaporation, which is not structure selective. If a reaction with light ions is combined with an enough sensitive detection system, it is possible to populate and observe all states in a given range of spin and energy. These kind of measurements are also important because they provide information about the total number of states in the region of interest, and consequently an idea about other possible mixings.The nucleus 145 Sm is a very interesting case to perform this kind of studies since there is a vast information arising from one-nucleon transfer reactions with light projectiles. There are several works published on stripping reactions results [1, 2]. Pick-up reactions became possible recently [3,4] with the construction of the radioactive target 146 Sm.In the present work we have made an effort to study above yrast states in 145 Sm. The reaction and energy was chosen to populate states in the range of spin and energy where the 2 + ⊗ νf 7 2 and the 3 − ⊗ νf 7 2 multiplets are expected. Since anyhow the above yrast states are always weakly populated in comparison with yrast states, the use of a compton suppressed multidetector array was essential in this case. Since the gamma multiplicity was expected to be low, and the recoil velocity small, we could use a setup where the Ge detectors were relatively close to the target.The experiments were carried out at the 12 MV Tandem accelerator at the University of Cologne. In a first run a detailed excitation function measurement was done for alpha energies ranging from 20 to 28 MeV in 0.4 MeV steps on a 93.5% enriched 142 Nd target. C...

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Structure of the145Sm states from the145Eu Decay

Cited by 4 publications

References 26 publications

Structure of the146Sm states from the146Eu decay

Structure of the146Sm states from the146Eu decay

Three-nucleon yrast states in145Sm

Particle-quadrupole and particle-octupole coupled states in 145Sm

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