Role of diproton correlation in two-proton-emission decay of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Be</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>nucleus

Oishi, T.; Hagino, K.; Sagawa, H.

doi:10.1103/physrevc.90.034303

Cited by 28 publications

(65 citation statements)

References 72 publications

(153 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is worthwhile to mention that, if one can neglect PCE, 2p-resonance state locates at Q 2p = h 1 + h 2 = 2ǫ r , where ǫ r is the α − p resonance energy. In this case, where 2p-wave function keeps the pure (p 3/2 ) 2 configuration, it was confirmed that the decay process is well described as a sequential 2p emission [33].…”

Section: Three-body Modelsupporting

confidence: 57%

“…[33], in order to reproduce the resonance energy and width in the (p 3/2 )-channel of α − p scattering, ǫ r = 1.96 MeV and Γ r ≃ 1.5 MeV, respectively [38]. Note that this resonance is attributable to the centrifugal potential barrier [33]. The p − p pairing potential is introduced as…”

Section: Three-body Modelmentioning

confidence: 99%

“…The cutoff energy is set as E cut = 40 MeV similarly in Ref. [33], yielding w 0 = −767.398 MeV·fm 3 . Total expectation value of H 3b , which is conserved during the time-evolution, corresponds to the released Qvalue of the three-body decay.…”

Section: Three-body Modelmentioning

confidence: 99%

“…[33]. This confining potential method has provided good approximations for quantum resonance phenomena [23,[45][46][47], together with an intuitive way to understand their dynamics.…”

Section: Numerical Calculation a Initial Statementioning

confidence: 99%

“…For this purpose, we employ the timedependent three-body model [33], whose simplicity enables us to phenomenologically understand the pairing model-dependence of 2p radioactivity. We focus on the 2p emission from the ground state of the 6 Be nucleus, assuming the configuration of two valence protons and a rigid α core.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Dependence of two-proton radioactivity on nuclear pairing models

2017

Self Cite

View full text Add to dashboard Cite

Sensitivity of two-proton emitting decay to nuclear pairing correlation is discussed within a timedependent three-body model. We focus on the 6 Be nucleus assuming α + p + p configuration, and its decay process is described as a time-evolution of the three-body resonance state. For proton-proton subsystem, schematic density-dependent contact (SDDC) pairing model is employed. From timedependent calculation, we observed the exponential decay rule of two-proton emission. It is shown that the density-dependence does not play a major role in determining the decay width, which can be controlled only by the asymptotic strength of the pairing interaction. This asymptotic pairing sensitivity can be understood in terms of the dynamics of the wave function driven by the threebody Hamiltonian, by monitoring the time-dependent density distribution. With this simple SDDC pairing model, there remains an impossible trinity problem: it cannot simultaneously reproduce the empirical Q-value, decay width and the nucleon-nucleon scattering length. This problem suggests that a further sophistication of the theoretical pairing model is necessary, utilizing the two-proton radioactivity data as the reference quantities.

show abstract

Section: Three-body Modelsupporting

confidence: 57%

Section: Three-body Modelmentioning

confidence: 99%

Section: Three-body Modelmentioning

confidence: 99%

“…[33]. This confining potential method has provided good approximations for quantum resonance phenomena [23,[45][46][47], together with an intuitive way to understand their dynamics.…”

Section: Numerical Calculation a Initial Statementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dependence of two-proton radioactivity on nuclear pairing models

2017

Self Cite

View full text Add to dashboard Cite

show abstract

Research on two-proton radioactivity in density-dependent cluster model

Yuan

Bai

Wang

et al. 2023

Sci. China Phys. Mech. Astron.

View full text Add to dashboard Cite

Recent progress in two-proton radioactivity

et al. 2022

View full text Add to dashboard Cite

During the last few decades, rare isotope beam facilities have provided unique data for studying the properties of nuclides located far from the beta-stability line. Such nuclei are often accompanied by exotic structures and radioactive modes, which represent the forefront of nuclear research. Among them, two-proton (2p) radioactivity is a rare decay mode found in a few highly proton-rich isotopes. The 2p decay lifetimes and properties of emitted protons hold invaluable information regarding the nuclear structures in the presence of a low-lying proton continuum; as such, they have attracted considerable research attention. In this review, we present some of the recent experimental and theoretical progress regarding the 2p decay, including technical innovations for measuring nucleonnucleon correlations and developments in the models that connect their structural aspects with their decay properties. This impressive progress should play a significant role in elucidating the mechanism of these exotic decays, probing the corresponding components inside nuclei, and providing deep insights into the open quantum nature of dripline systems.

show abstract

Role of diproton correlation in two-proton-emission decay of theBe6nucleus

Cited by 28 publications

References 72 publications

Dependence of two-proton radioactivity on nuclear pairing models

Dependence of two-proton radioactivity on nuclear pairing models

Research on two-proton radioactivity in density-dependent cluster model

Recent progress in two-proton radioactivity

Contact Info

Product

Resources

About