Effect of different baryon impurities

Tan, Yu-Hong; Zhong, X.; Cai, Chonghai; Ning, Puqi

doi:10.1103/physrevc.70.054306

Cited by 30 publications

(26 citation statements)

References 41 publications

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“…However the photon field, which is more dominant, compensates for the change in proton radii, so that both the proton and neutron radii decrease at the neutron dripline. This in agreement with the work by Tan et al, 26 where on switching off the coupling of the Ξ − to the ρ-meson, only the proton radius decreased, leaving the neutron radius unchanged. As the shrinkage due to the Ξ − can be seen even at very low mass, it will be interesting to look for such changes experimentally.…”

Section: Resultssupporting

confidence: 93%

See 1 more Smart Citation

Strange Baryons, Nuclear Dripline and Shrinkage: A Relativistic Mean Field Study

Bhowmick

Bhattacharyya

Gangopadhyay

2013

Int. J. Mod. Phys. E

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Neutron and proton driplines of single-Λ and double-Λ hypernuclei, Ξ − hypernuclei as well as normal nuclei are studied within a relativistic mean field approach using an extended form of the FSU Gold Lagrangian density. Hyperons are found to produce bound nuclei beyond the normal nuclear driplines. Radii are found to decrease in hypernuclei near the driplines, in line with observations in light Λ hypernuclei near the stability valley. The inclusion of a Ξ − introduces a much larger change in radii than one or more Λ's.

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Section: Resultssupporting

confidence: 93%

“…3, it can be seen that at the p-dripline of Ξ − hypernuclei the rms charge radius decreases while the neutron radius increases. A similar effect was seen by Tan et al 26 for nuclei away from dripline. There, a slow decrease in this effect with mass was seen.…”

Section: Resultssupporting

confidence: 85%

Strange Baryons, Nuclear Dripline and Shrinkage: A Relativistic Mean Field Study

Bhowmick

Bhattacharyya

Gangopadhyay

2013

Int. J. Mod. Phys. E

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“…The quest for proton or neutron magic numbers in the elusive mass region of superheavy nuclei is of utmost importance as the mere existence of superheavy nuclei is the result of the interplay between the attractive nuclear force (shell effects) and the large disruptive coulomb repulsion between the protons that favours the fission [39,40]. It is well established that 2,8,20,28,50,82 and 126 are the nucleonic magic number. In addition to this, Z = 120 and N = 172, 184 are predicted to be next magic number by various theoretical models in superheavy mass region [41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Quest for magicity in hypernuclei

Ikram

Rather

Kumar

et al. 2016

Int. J. Mod. Phys. E

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In present study, we search the lambda magic number in hypernuclei within the framework of relativistic mean field theory (RMF) with inclusion of hyperon-nucleon and hyperon-hyperon potentials. Based on one- and two-lambda separation energy and two-lambda shell gap, 2, 8, 14, 18, 20, 28, 34, 40, 50, 58, 68, 70 and 82 are suggested to be the $\Lambda$ magic number within the present approach. The weakening strength of $\Lambda$ spin-orbit interaction is responsible for emerging the new lambda shell closure other than the model scheme. The predicted $\Lambda$ magic numbers are in remarkable agreement with earlier predictions and hypernuclear magicity quite resembles with nuclear magicity. %Our results also support the nuclear magicity, Our results are supported by nuclear magicity, where neutron number N = 34 is experimentally observed as a magic which is one of the $\Lambda$ closed shell in our predictions. In addition, the stability of hypernuclei is also examined by calculating the binding energy per particle, where Ni hypernucleus is found to be most tightly bound triply magic system in considered hypernuclei. Nucleon and lambda density distributions are observed and it is found that introduced $\Lambda$'s have significant impact on total density and reduces the central depression of the core nucleus. Nucleon and lambda mean field potentials and spin-orbit interaction potentials are also observed for predicted triply magic hypernuclei and the addition of $\Lambda$'s affect the both the potentials to a large extent. The single-particle energy levels are also analyzed to explain the shell gaps for triply magic multi-$\Lambda$ hypernuclei

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“…A study analysing the default mode of cats found that the anticorrelations between the DMN and the DAN were found only 20% of the time suggesting a role of DMN in attention [24]. People with disorders like ADHD, Parkinson's disease, Alzheimer's have shown to have differential connectivity in the DMN which can be altered using drugs [25]. The recent use of continuous attention tasks demonstrated a complex dynamics between DAN-DMN activity with task load and attentional control [26].…”

Section: Introductionmentioning

confidence: 99%

Weak Task Synchronization of Default Mode Network in Task Based Paradigms

Tripathi¹,

Garg²

2021

Preprint

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Default Mode Network (DMN) has been called a "task-negative" network which deactivates during engaging extrinsic tasks. But the behavior is more nuanced. We analyse the DMN during three different tasks (visual, affect and language; n=54) and find inter trial variability which gets amiss when analysed using General Linear Model (GLM). The region also shows significant across subjects variations which limits the use of Inter Subject Correlation (ISC) method to detect correlated deactivations during the task. We introduce Temporal Synchronization Analysis (TSA), a family of methods that can help detect inter-trial (IT-TSA) and inter-subject (IS-TSA) synchronization across the brain. We find that DMN is weakly synchronized across trials and subjects, challenging the notion of task negative behavior. Our study suggests the role of DMN as an active component associated with self-referential, autobiographical processes which are deactivated differentially and non linearly across trials and subjects in the presence of extrinsic processes.

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Effect of different baryon impurities

Cited by 30 publications

References 41 publications

Strange Baryons, Nuclear Dripline and Shrinkage: A Relativistic Mean Field Study

Strange Baryons, Nuclear Dripline and Shrinkage: A Relativistic Mean Field Study

Quest for magicity in hypernuclei

Weak Task Synchronization of Default Mode Network in Task Based Paradigms

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