Direct observation of the exotic 
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 decay mode in the 
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 nucleus 
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Wang, Y. B.; Su, Juanjuan; Han, Zhiyu; Tang, B.; Cui, B.; Ge, Ting; Lyu, Y. L.; Brown, B. A.; Yuan, C. X.; Chen, L. H.; Chen, Z. Q.; Dai, Bo; Guo, Bin; Li, X. Y.; Li, Y. J.; Li, Z. H.; Lian, Gang; G., R.; L., T.; Ma, Xuan; J., Y.; Ding, Nan; Shen, Y. P.; Su, Yu-Kai; Wang, C. G.; Wu, H. Y.; Fang, Xu; Yan, S. Q.; Zeng, Shuo; Zhang, H.; Zhang, L.; Zheng, Yun; Zhou, Chenglong; Dang, Yong-Le; Fu, Guang-Yong; He, Yuhui; L., Liu, F.; Wu, Dazhou; Zhang, T. J.; Liu, W. P.

doi:10.1103/physrevc.103.l011301

Cited by 7 publications

(4 citation statements)

References 43 publications

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“…BRIF was first commissioned in 2015 by producing the unstable 20−22 Na and 36−38 K isotopes. This led to a successful day-one experiment to study the exotic decay mode of the neutron-deficient 20 Na isotope [27].…”

Section: Brifmentioning

confidence: 99%

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Construction and commissioning of the collinear laser spectroscopy system at BRIF

Wang,

Yang,

Bai

et al. 2022

Preprint

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We have constructed a collinear laser spectroscopy (CLS) system installed at the Beijing Radioactive Ion-beam Facility (BRIF), aiming to investigate the nuclear properties of unstable nuclei. The first on-line commissioning experiment of this system was performed using the continuous stable ( 39 K) and unstable ( 38 K) ion beams produced by impinging a 100-MeV proton beam on a CaO target. Hyperfine structure spectra of these two isotopes are reasonably reproduced, and the extracted magnetic dipole hyperfine parameters and isotope shift agree with the literature values. The on-line experiment demonstrates the overall functioning of this CLS system, opening new opportunities for laser spectroscopy measurement of unstable isotopes at BRIF and other radioactive ion beam facilities in China.

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Section: Brifmentioning

confidence: 99%

“…The BRIF facility has successfully produced the RI beams of 20−22 Na and 36−38 K isotopes by impinging a 100-MeV proton beam on MgO and CaO targets, respectively [27,28]. Implementation of the UC x target into the BRIF is on-going, which has the potential to produce a wide range of RI isotopes in various mass regions.…”

Section: Introductionmentioning

confidence: 99%

Construction and commissioning of the collinear laser spectroscopy system at BRIF

Wang,

Yang,

Bai

et al. 2022

Preprint

Self Cite

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“…Alpha decay is also an essential process in astrophysics and helps us understand the formation of elements in the universe. As the most important way of decay between heavy and super heavy nuclei, alpha-decay opened an area for researchers to discover new and exotic unstable nuclei and isotopes [1][2][3][4][5][6][7][8][9]. The study of alpha-decay, as an important area to realize the nuclear structure, is a powerful way to understand the amounts of spin, parity, ground state energy, nuclear radius, electric quadrupole moment, the island of stability, and many other nuclear features.…”

Section: Introductionmentioning

confidence: 99%

Improved calculation of alpha decay half-life by incorporating nuclei deformation shape and proximity potential

Yazdankish,

Nejatolahi

2023

Phys. Scr.

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Accurate evaluation of alpha decay half-life is important for understanding nuclear stability, ensuring nuclear safety, optimizing medical treatments, and studying astrophysical processes. Considering the deformed shape of nuclei, we calculated the alpha-decay half-life of 359 nuclei using the proximity potential. In addition, we employed the Wentzel-Kramers-Brillouin approximation to compute the penetration probability through the potential barrier comprising nuclear, Coulomb, and centrifugal potentials. Our calculations revealed that the penetration probability, and hence the alpha-decay half-life, depend on the direction of alpha particle emission relative to the axial symmetry of the parent nuclei. Furthermore, our results suggested that the dependence of alpha-decay on parent nuclei temperature needs to be reassessed. We tabulated the alpha-decay half-life for various nuclei, and our results shown better agreement with experimental data compared to theoretical data in the literature.

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“…For example, shell model calculations with the YSOX interaction have succeeded in reproducing the properties of neutron-rich Be [46,47], B [48], C [49,50], and O [51] isotopes with the help of the cross-shell excitation beyond N = 8. In the sd region, the interpretation of the exotic β-γ-α decay mode in 20 Na [52] also requires the neutron cross-shell excitation. Moreover, shell model studies with the SDPF-MU [53] and SDPF-U-SI [54] interactions were performed to describe the exotic Mg [55], Si [56], and S [53,54] isotopes, considering the neutron excitation across the N = 28 shell.…”

Section: Introductionmentioning

confidence: 99%

Cross-Shell Excitation in F and Ne Isotopes around N = 20

Liu

Yuan

2021

Symmetry

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Within the framework of the configuration–interaction shell model, the present work applies three effective interactions to investigate the effects of the cross-shell excitation on F and Ne isotopes around N = 20, which are significantly proton–neutron asymmetric, and have different properties compared with the proton–neutron symmetric nuclei. It is shown that cross-shell excitation is necessary in order to reproduce separation energies, neutron drip lines, and low-energy levels of these isotopes. Furthermore, the cross-shell excitation of (0–5)ħω is suggested to be important in the description of 29F and 30Ne. However, the three interactions are insufficient in describing the bound structure of 29,31Ne, and provide inconsistent shell structures and evolutions in the target nuclei. Their cross-shell interactions are suggested to be improved.

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Direct observation of the exotic β−γ−α decay mode in the Tz=−1 nucleus Na<

Cited by 7 publications

References 43 publications

Construction and commissioning of the collinear laser spectroscopy system at BRIF

Construction and commissioning of the collinear laser spectroscopy system at BRIF

Improved calculation of alpha decay half-life by incorporating nuclei deformation shape and proximity potential

Cross-Shell Excitation in F and Ne Isotopes around N = 20

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