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Geesaman, D. F.; McGrath, Robert; Noé, J.W.; Malmin, R.E.

doi:10.1103/physrevc.19.1938

Cited by 23 publications

(18 citation statements)

References 31 publications

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“…This isomeric level, placed at an excitation energy of 6820±130 keV and with a measured half-life of 45.94±1.0 sec [11], decays β + towards states in 52 Mn. An upper limit of 0.4 % was established [11] for the γ-decay of the 12 + state. The high efficiency of the GASP array and the use of a reaction in which low-lying levels are considerably populated by side feeding allowed us to identify new γray transitions belonging to 52 Fe by setting gates on the previously known γ-rays.…”

Section: A the Level Schemementioning

confidence: 96%

“…Thus, although fusion-evaporation reactions populate appreciably the 52 Fe channel, the deexcitation γ-ray flux effectively stops at the 12 + level where it is diverted into the population of high spin states in 52 Mn. Due to the weak direct population of the lower spin states, it was not possible to observe the yrast line above the 4 + 1 state [11]. One should note, however, that these previous experiments were performed with small (10-15% efficiency) Ge(Li) detectors, and therefore had a rather low γ-ray detection efficiency.…”

mentioning

confidence: 97%

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Excited states in52Feand the origin of the yrast trap atIπ=
Ur
¹
,
Bucurescu
²
,
Lenzi
³

et al. 1998
Phys. Rev. C
47
4
28
0
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Excited states in 52 Fe have been determined up to spin 10h in the reaction 28 Si + 28 Si at 115 MeV by using γ-ray spectroscopy methods at the GASP array. The excitation energy of the yrast 10 + state has been determined to be 7.381 MeV, almost 0.5 MeV above the well known β + -decaying yrast 12 + state, definitely confirming the nature of its isomeric character. The mean lifetimes of the states have been measured by using the Doppler Shift Attenuation method. The experimental data are compared with spherical shell model calculations in the full pf -shell.

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Section: A the Level Schemementioning

confidence: 96%

mentioning

confidence: 97%

Excited states in52Feand the origin of the yrast trap atIπ=
Ur
¹
,
Bucurescu
²
,
Lenzi
³

et al. 1998
Phys. Rev. C
47
4
28
0
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show abstract

“…Recently, Gadea et al [13] measured the γ decay of the 12 + yrast trap for nucleus 52 Fe and found the two E4 transitions to the 8 + states are hindered with respect to other B(E4) transitions measured in the f 7/2 shell. Such 12 + state is considered as an isomeric one, which mainly decays β + into excited states of the daughter nucleus 52 Mn [48] .…”

Section: Results and Discussion For 5fementioning

confidence: 99%

Mixed symmetry states and isospin excitation in N = Z nucleus 52Fe

Zhang

Lü

Bai

et al. 2008

Sci. China Ser. G-Phys. Mech. Astron.

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The interacting boson model with isospin (IBM-3) was applied to study the band structure and electromagnetic transition properties of the low-lying states in the even-even N = Z nucleus 52 Fe. The isospin excitation states with T = 0, 1 and 2 were identified, and compared with the available data. The study shows that the 2 + 3 state is the lowest mixed symmetry state in 52 Fe. The excitation energy of the second 0 + 2 state with T = 0 in nucleus 52 Fe was identified. The model calculations with the data show a reasonably good agreement. energy level, isospin, mixed symmetry states, electromagnetic transitionsWith the development of radioactive ion beam facilities and large detector arrays, the study of the structure of heavy nuclei (A≥40) with N = Z has been a subject of intense interest during the last few years. The main reason is that (i) the structure of these nuclei provides a sensitive test for the isospin symmetry of nuclear force; (ii) these nuclei may give new insights into neutron-proton (np pair) correlations that are unknown up to present; (iii) these nuclei are important for rp-process nucleosynthesis. Much experimental and theoretical work -, e.g. refs. [1 28], has been carried out recently for the investigation and understanding of the structure of the atomic nuclei with N = Z, the initial focus being on heavy odd-odd N = Z nuclei [1][2][3][4][5][6][7] . However, many experimental studies have been started recently for heavy even-even N = Z nuclei [9,11,13,24] (A≥40 up to A = 88). The neutron-proton correlations in the T = 0 channel are an interesting aspect of the N = Z nuclei, where T = 0 pairing may lead to a new collective mode [29,30] . Nuclei with N = Z are expected to exhibit interesting deformation characteristics, such as the reduction of the moment of inertia and the backbending phenomenon, etc.In many nuclear models, the studies of even-even nuclei are much easier than those of odd-odd nuclei. The interacting boson model (IBM) of nuclei, introduced by Arima and Iachello [31] , is phenomenologically successful in describing the spectra of medium heavy nuclei and heavy nu-

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“…The only difference is that we break the T=0 This is a topic we discussed in previous cluster meetings so we will be brief. [14] We just want to remind the reader that there are all sorts of many particle-many hole highly deformed states in 40 Ca. One cannot properly describe 40 Ca in a cluster model consisting of 36 Ar plus an alpha particle.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

The love-hate relationship between the shell model and cluster models

Zamick

Robinson

2002

Phys. Atom. Nuclei

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We adopt a personal approach here reviewing several calculations over the years in which we have experienced confrontations between cluster models and the shell model. In previous cluster conferences we have noted that cluster models go hand in hand with Skyrme Hartee-Fock calculations in describing states which cannot easily, if at all, be handled by the shell model. These are the highly deformed (many particle -many hole) intruder states, linear chain states e.t.c. In the present work we will consider several topics; the quadrupole moment of 6 Li, the non-existence of low lying intruders in 8 Be, and then jumping to the f 7/2 shell, we discuss the two-faceted nature of the nuclei -sometimes displaying shell model properties, other times cluster properties. I. THE QUADRUPOLE MOMENT OF THE

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Yrast states inFe52,Mn

Cited by 23 publications

References 31 publications

Excited states in52Feand the origin of the yrast trap atIπ=
Ur
¹
,
Bucurescu
²
,
Lenzi
³

et al. 1998
Phys. Rev. C
47
4
28
0
View full text Add to dashboard Cite

Excited states in52Feand the origin of the yrast trap atIπ=
Ur
¹
,
Bucurescu
²
,
Lenzi
³

et al. 1998
Phys. Rev. C
47
4
28
0
View full text Add to dashboard Cite

Mixed symmetry states and isospin excitation in N = Z nucleus 52Fe

The love-hate relationship between the shell model and cluster models

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Yrast states inFe52,Mn

Cited by 23 publications

References 31 publications

Excited states in52Feand the origin of the yrast trap atIπ=Ur1, Bucurescu2, Lenzi3 et al. 1998Phys. Rev. C474280View full textAdd to dashboardCite

Excited states in52Feand the origin of the yrast trap atIπ=Ur1, Bucurescu2, Lenzi3 et al. 1998Phys. Rev. C474280View full textAdd to dashboardCite

Mixed symmetry states and isospin excitation in N = Z nucleus 52Fe

The love-hate relationship between the shell model and cluster models

Contact Info

Product

Resources

About

Excited states in52Feand the origin of the yrast trap atIπ=
Ur
¹
,
Bucurescu
²
,
Lenzi
³

et al. 1998
Phys. Rev. C
47
4
28
0
View full text Add to dashboard Cite

Excited states in52Feand the origin of the yrast trap atIπ=
Ur
¹
,
Bucurescu
²
,
Lenzi
³

et al. 1998
Phys. Rev. C
47
4
28
0
View full text Add to dashboard Cite