Radioactivities by light fragment (C, Ne, Mg) emission

Hourani, E.; Hussonnois, M.; Poenaru, D. N.

doi:10.1051/anphys:01989001403031100

Cited by 40 publications

(38 citation statements)

References 30 publications

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“…Finally, complex fragments were detected in extremely low energy reactions(19~22) and, io complete the picture, even from the radioactive decay of ground state nuclei (23)(24)(25)(26). · Nowadays, complex fragment emission has become an all-pervasive process, involving all excitation energies and all kinds .of reactions.…”

Section: ·• -5-mentioning

confidence: 92%

Multifragmentation in Heavy-Ion Processes

Moretto¹,

Wozniak²

1993

Annu. Rev. Nucl. Part. Sci.

218

122

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Section: ·• -5-mentioning

confidence: 92%

Multifragmentation in Heavy-Ion Processes

Moretto¹,

Wozniak²

1993

Annu. Rev. Nucl. Part. Sci.

218

122

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“…Already measured are the emission of C, Ne, Mg and Si nuclei. A review of the experimental status up to 1989 is given in [9,10], for the latest results see [11][12][13]26]. Quantitative arguments for the emission of fragments heavier than e-particles have been given for the first time by Sandulescu et al in 1980 [14].…”

Section: Extension To Exotic Decaysmentioning

confidence: 99%

“…This projection property is required for defining a proper quantum mechanical probability (7). Cluster spectroscopic factors found in the literature before 1975 are those which result from the neglect of the norm operator in (10); in contrast to S we call them conventional spectroscopic factor S .... 226Th _+ 160 + 210pb (11) The corresponding conventional spectroscopic factors are smaller by factors of the order 300, 106 , 108 and 1012, respectively. Nevertheless, S .... has been used for exotic decays in [,16].…”

Section: Spectroscopic Factormentioning

confidence: 99%

From ?-decay to exotic decays ? a unified model

Blendowske

Fließbach

Walliser

1991

Z. Physik A - Hadrons and Nuclei

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The possibility of extending the microscopic e-decay theory to exotic decay modes is investigated. It is argued that the strong Pauli distortions in the antisymmetrized wave function of the open channel favour this possibility. The microscopic description can be reduced to a onebody picture; the structure information is then contained in a spectroscopic factor. Existing microscopic calculations from ~-up to 160-decays justify a simple unified bulk formula for the spectroscopic factor. In this way a semiemp]rical formula for the decay constant is obtained depending on 1 parameter only (for odd and even nuclei, respectively). This formula describes all decay modes in a unified way and yields an excellent reproduction of the known exotic decay rates. It is thus well-suited for the unambiguous prediction of yet unmeasured decay constants. PACS: 23.60. + e; 29.90. + w; 21.60.Gx

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“…Thus, the beta stable nuclei with relatively longer half-life for spontaneous fission than that of alpha decay indicate that the dominant decay mode for such a superheavy nucleus might be alpha decay. It is worth mentioning here that the α-decay is not the only mode of decay found in heavy nuclei but there is wealth of literature for β-decay, spontaneous fission (SF) and cluster decay also for such nuclei [36,37,38,39,40,41,42,43,44]. Generally, alpha decay occurs in heavy and superheavy nuclei while as beta decay can occur throughout the periodic chart.…”

Section: Introductionmentioning

confidence: 99%

Structural and decay properties of Z = 132, 138 superheavy nuclei

et al. 2016

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Abstract.In this paper, we analyze the structural properties of Z = 132 and Z = 138 superheavy nuclei within the ambit of axially deformed relativistic mean-field framework with NL3 * parametrization and calculate the total binding energies, radii, quadrupole deformation parameter, separation energies, density distributions. We also investigate the phenomenon of shape coexistence by performing the calculations for prolate, oblate and spherical configurations. For clear presentation of nucleon distributions, the twodimensional contour representation of individual nucleon density and total matter density has been made. Further, a competition between possible decay modes such as α-decay, β-decay and spontaneous fission of the isotopic chain of superheavy nuclei with Z = 132 within the range 312 ≤ A ≤ 392 and 318 ≤ A ≤ 398 for Z = 138 is systematically analyzed within self-consistent relativistic mean field model. From our analysis, we inferred that the α-decay and spontaneous fission are the principal modes of decay in majority of the isotopes of superheavy nuclei under investigation apart from β decay as dominant mode of decay in 318−322 138 isotopes. PACS. PACS-key discribing text of that key -PACS-key discribing text of that key

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Radioactivities by light fragment (C, Ne, Mg) emission

Cited by 40 publications

References 30 publications

Multifragmentation in Heavy-Ion Processes

Multifragmentation in Heavy-Ion Processes

From ?-decay to exotic decays ? a unified model

Structural and decay properties of Z = 132, 138 superheavy nuclei

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