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

Yuan, Ziyi; Bai, Dong; Wang, Zhen; Ren, Zhongzhou; Ni, Dongdong

doi:10.1007/s11433-022-1994-8

Cited by 13 publications

(5 citation statements)

References 83 publications

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“…However, the calculated results of the not true 2p radioactive nuclei seemingly display less congruence compared to those of the true 2p radioactivity when compared with the experimental data. This result can be interpreted as the fact that current theoretical methods almost all regard the 2p radioactivity as the only diproton emission case [40][41][42][43][44][45]. For the not true 2p radioactivity whose Q 2p > 0 and Q p > 0 and the true 2p radioactivity whose two protons are emitted with large opening angles in the direction of emission, the cases of cascade emission and three-body emission should also be further considered [39,70].…”

Section: Resultsmentioning

confidence: 99%

“…The other type is the true 2p radioactivity whose Q 2p > 0 and Q p < 0, which is featured in that the 1p radioactivity is strongly forbidden or substantially suppressed, and the energy level of the 2p emitting channel is lower than that of 1p radioactivity [32]. With the development of experimental facilities and detection technologies, the true 2p radioactivity was first reported in 2002 via the experiments of 45 Fe projectile fragmentation and in-flight identification performed at GANIL [33] and GSI [34], respectively. Later, the true 2p radioactivity of 19 Mg [35], 48 Ni [36], 54 Zn [37] and 67 Kr [38] were also detected in different experiments.…”

Section: Introductionmentioning

confidence: 99%

“…For the estimation of the 2p decay rate, one of the viable theoretical methods of calculating the 2p radioactive half-lives is the semiclassical Wentzel-Kramers-Brillouin (WKB) approximation. Based on the WKB theory, many theoretical methods have been proposed to study the 2p radioactivity during the past years, including the effective liquid drop model [40], the generalized liquid drop model [41], the Gamow-like model [42], the screened electrostatic barrier [43], the unified fission model [44], the density-dependent cluster model [45] and the Skyrme-Hartree-Fock-Bogoliubov method [46], etc. These studies agree with the experimental data and presented a series of predictions for potential 2p radioactivity candidates, thereby providing valuable conduct for investigating the exotic nuclei near the proton drip line.…”

Section: Introductionmentioning

confidence: 99%

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Laser-assisted two-proton radioactivity

Zou,

Cheng,

et al. 2024

J. Phys. G: Nucl. Part. Phys.

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In this work, we systematically investigate the two-proton ($2p$) radioactivity assisted by an ultra-intense laser field within a deformed one-parameter model (OPM). The results show that the ultra-intense laser hardly affects the preformation probability of the emitted $2p$-pair, but it can change the $2p$ radioactive half-lives to a finite extent by affecting the penetrability probability. Moreover, we compare the responses of different $2p$ radioactivity nuclei to the laser field, and it is found that the $2p$ radioactivity of nuclei with a low decay width are more easily influenced by the intense laser field. Furthermore, the effects of different physical parameters of a laser pulse on the $2p$ radioactivity were also discussed. The calculations indicate that the lasers characterized by shorter wavelengths and higher intensities exert a more significant influence on the rate of the average change in pulse duration. Finally, we extended the deformed OPM to predict the half-lives of $2p$ radioactivity candidates and identified the possible experimental objects of the laser-assisted $2p$ radioactivity. This study may promote the possibility of future experimental investigations on extensive facilities like GSI and ELI-NP, etc.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Laser-assisted two-proton radioactivity

Zou,

Cheng,

et al. 2024

J. Phys. G: Nucl. Part. Phys.

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“…Research on proton emission may have important implications for facilitating the extant nuclear theories and models, obtaining spectroscopic information, and determining nuclear deformation, among other purposes [10][11][12][13][14][15][16]. Therefore, numerous attempts have been made to study this phenomenon in theory [17][18][19][20][21][22][23][24][25].…”

Section: Q Pmentioning

confidence: 99%

Theoretical calculations of proton emission half-lives based on a deformed Gamow-like model*

Zhang 张,

Hu 胡,

Qi 亓

et al. 2024

Chinese Phys. C

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In the present study, proton emission half-lives have been investigated for the deformed proton emitters of proton number range $53\leq Z \leq 83$ within the deformed Gamow-like model, where the deformation effect has been included in the Coulomb potential. The calculated results can reproduce the experimental half-lives successfully within a factor of 3.45. For comparison, we also perform calculations with other different models, including the universal decay law for proton emission and the new Geiger-Nuttall law. Furthermore, the relevance of the half-lives to the angular momentum $l$ for $^{117}$La, $^{121}$Pr, $^{135}$Tb and $^{141}$Ho has been analysed as well as corresponding possible reference values of $l$ has been put forward: $l=$3, 3, 4, 4.

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“…From the QE scattering, the information of the nucleon momentum distribution n(k) can be extracted from the shape and width of the QE peak [2][3][4][5][6][7]. The high-momentum components of the momentum distributions offer insight into the nucleon-nucleon short-range (NN-SRC) effects [8], which play a vital role in comprehending the characteristics of matter at high densities, such as relativistic heavy-ion scattering and neutron stars [9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

School Mathematics Textbooks in China

Wang¹

2015

East China Normal University Scientific Reports

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Let µ and ν be two probability measures on R d , where µ(dx) = e −V (x) dx R d e −V (x) dx for some V ∈ C 1 (R d ). Explicit sufficient conditions on V and ν are presented such that µ * ν satisfies the log-Sobolev, Poincaré and super Poincaré inequalities. In particular, if V (x) = λ|x| 2 for some λ > 0 and ν(e λθ|•| 2 ) < ∞ for some θ > 1, then µ * ν satisfies the log-Sobolev inequality. This improves and extends the recent results on the log-Sobolev inequality derived in [20] for convolutions of the Gaussian measure and compactly supported probability measures. On the other hand, it is well known that the log-Sobolev inequality for µ * ν implies ν(e ε|•| 2 ) < ∞ for some ε > 0. RésuméDes conditions explicites suffisantes sur V et ν sont présentées telles que µ * ν satisfait des inégalités de Sobolev logarithmique, de Poincaré et de super-Poincaré. En particulier, si V (x) = λ|x| 2 pour quelque λ > 0 et ν(e λθ|•| 2 ) < ∞ avec θ > 1, alors µ * ν satisfait l'inégalité de Sobolev logarithmique. Cela améliore et étend des résultats récents sur l'inégalité de Sobolev logarithmique obtenus dans [20] pour des convolutions de la mesure de Gauss et des mesures de probabilité à support compact. D'autre part, il est bien connu que l'inégalité de Sobolev logarithmique pour µ * ν implique ν(e ε|•| 2 ) < ∞ pour quelque ε > 0.

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

Cited by 13 publications

References 83 publications

Laser-assisted two-proton radioactivity

Laser-assisted two-proton radioactivity

Theoretical calculations of proton emission half-lives based on a deformed Gamow-like model*

School Mathematics Textbooks in China

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