A = 3 Clustering in Nuclei

Abbas, Syed Afsar; Ahmad, Shakeb

doi:10.1142/s0218301311019714

Cited by 5 publications

(13 citation statements)

References 41 publications

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“…As the nuclear SU(2) isospin generates and validates the shell model structure of N ∼ Z nuclei, we extrapolate this logic to find a suitable shell model structure generated by and validated by the SU A (2) nusospin group. We have already seen how the nusospin group predicts new magic numbers of the (Z, N) pair of (4,8), (6,12), (8,16), (10,20) [16]. So it is logical to assume that there may be a different shell structure associated with this new group.…”

Section: The Epm Model and Triton Clusteringmentioning

confidence: 98%

The role of the elemental nature of A = 3 nuclei in neutron-rich nuclei

Usmani

Abbas²,

Rahaman

et al. 2018

Int. J. Mod. Phys. E

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The idea of treating the trinucleon systems as elementary entities in the elementary particle model (EPM) as an Effective Field Theory has been a success in explaining the weak charge-changing processes in nuclei.The EPM results are found to be as good as those obtained from nuclear microscopic models using two-and three-body forces. We extend this concept to investigate the validity of the elemental nature of A = 3 nuclei through studies of nuclear structure of neutron-rich nuclei. By treating neutron-rich nuclei as primarily made up of tritons as its building blocks, we extract one-and two-triton separation energies of these nuclei.Calculations have been performed here within relativistic mean field (RMF) models with latest interactions.Clear evidence arises of a new shell structure with well-defined predictions of new magic nuclei. These unique predictions have been consolidated by standard one-and two-neutron separation energy calculations.The binding energy per nucleon plots of these nuclei also confirm these predictions. We make unambiguos prediction of six magic nuclei: 24 8 O 16 , 60 20 Ca 40 , 105 35 Br 70 , 123 41 Nb 82 , 189 63 Eu 126 and 276 92 U 184 . PACS numbers:

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Section: The Epm Model and Triton Clusteringmentioning

confidence: 98%

The role of the elemental nature of A = 3 nuclei in neutron-rich nuclei

Usmani

Abbas²,

Rahaman

et al. 2018

Int. J. Mod. Phys. E

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“…1 and 2, there does not appear to be any perceptible effect of the mixed state of alpha in nuclear physics. This conclusion gains greater significance in the light of the recent work in looking for alpha-clustering within 16 O, in seeking a consistent understanding of the Quark Gluon Plasma [1] Note that there shall not be any effect of 0 2 + state in alpha-clustering in nuclei, either when it goes to very-high energy or infinity, or when it collapses to the ground state. We ignore the first option as being highly unlikely.…”

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confidence: 84%

“…So when we say that 16 O is made up of four-4 He, or that 40 Ca is made up of ten-4 He, we are not talking of 4 He being just two-protons and twoneutrons sitting in the orbital 1s 1 2 , but have the configuration given in eqns. 1 and 2.…”

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confidence: 99%

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Connection between missing-charge in quasielastic electron scattering and two(one) proton knockout reactions and the island-of-inversion

Abbas,

Rahaman,

Usmani

2020

Preprint

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Our model, based on Quantum Chromodynamics, emphasizes the role of triton clustering in nuclei. As there is good empirical support of triton clustering in nuclei, we may even treat this as a good phenomenological working hypothesis as well. Here we show how our model finds remarkable success in being able to provide a consistent and interconnected understanding of such diverse empirical realities as the missing electric-charge in quasielastic electron scattering, and simultaneously, also the puzzling data within the studies of exotic nuclei. This gives us confidence, that our model should be taking account of the correct and proper degrees of freedom, to physically specify and explain, the total physical reality as manifested in the nuclear medium.

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“…Everybody agrees on the geometry of Helium isotopes and the recent literature is full of alpha clustering studies [14] [15] [16] [17] proposing that heavier nuclides should be built up as clusters of these elementary nuclides.…”

Section: The Geometric Representation Of Heavier Nuclidesmentioning

confidence: 99%

Travel to the Center of Atomic Nuclei

Donati¹

2019

JAMP

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Nuclei, with their internal proton-neutron transformations, electron and neutrino emission, are the ultimate motor of the universe both at the atomic and cosmological scale. The flux of neutrino governs the motion of the Earth around the Sun, the electronic orbital, the physical-chemical properties of substances, while the proton-neutron transformations are responsible for the nuclear bond and nuclear stability. The mechanical and chemical world is well known and understood while the structure of the nucleus and the nature of the nuclear bond are still a mystery due to the lack of experimental techniques at the subatomic scale. The recent consciousness of nuclei global role at the macroscale forces additional investigations. In our travel, we use, as a guide, the available mass defect data, propose a new approach to reconcile unexplained binding energies of lighter nuclides and give additional rules to build stepwise all known isotopes. While the rules appear to be sound, the picture that comes out is however only a first rough tentative of radiography of the internal structure of the nuclei of existing atoms.

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A = 3 Clustering in Nuclei

Cited by 5 publications

References 41 publications

The role of the elemental nature of A = 3 nuclei in neutron-rich nuclei

The role of the elemental nature of A = 3 nuclei in neutron-rich nuclei

Connection between missing-charge in quasielastic electron scattering and two(one) proton knockout reactions and the island-of-inversion

Travel to the Center of Atomic Nuclei

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