Quasifree Neutron Knockout Reaction Reveals a Small 
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-Orbital Component in the Borromean Nucleus 
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Yang, Z.; Kubota, Yuki; Corsi, A.; Yoshida, K.; Sun, Xiang-Xiang; Li, J. G.; Kimura, Masaaki; Michel, N.; Ogata, Kazuyuki; Yuan, C. X.; Yuan, Q.; Authelet, G.; Baba, H.; Caesar, C.; Calvet, D.; Delbart, A.; Dozono, M.; Feng, Jinhui; Flavigny, F.; Gheller, J.-M.; Gibelin, J.; Giganon, A.; Gillibert, A.; Hasegawa, K.; Isobe, T.; Kanaya, Yoshio; Kawakami, Satoshi; Kim, D.; Kiyokawa, Yasushi; Kobayashi, Mariko; Kobayashi, N.; Kobayashi, T.; Kondo, Y.; Korkulu, Z.; Koyama, S.; Lapoux, V.; Maeda, Y.; Marqués, F. M.; Motobayashi, T.; Miyazaki, Takamichi; Nakamura, Takashi; Nakatsuka, N.; Nishio, Y.; Obertelli, A.; Ohkura, A.; Orr, N. A.; Ota, S.; Otsu, H.; Ozaki, T.; Panin, V.; Paschalis, S.; Pollacco, E. C.; Reichert, S.; Roussé, J.-Y.; Saito, A.; Sakaguchi, Satoshi; Šako, M.; Santamaria, C.; Sasano, M.; Sato, Hiromi; Shikata, M.; Shimizu, Y.; Shindo, Y.; Stuhl, L.; Sumikama, T.; Sun, Y.; Tabata, M.; Togano, Y.; Tsubota, J.; Fang, Xu; Yasuda, J.; Yoneda, K.; Zenihiro, J.; Zhou, Shan‐Gui; Zuo, Wei; Uesaka, T.

doi:10.1103/physrevlett.126.082501

Cited by 58 publications

(6 citation statements)

References 96 publications

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“…This could help study the effect of core excitation or other structure properties that generate such components. For instance, the method could be used to study recent (p, pn) data for 17 B [34], for which the analysis of the relative-energy spectrum and momentum distributions yielded mostly s and d waves. A deviation from 90 degrees in the corresponding average opening angle could then be interpreted as a result of a small p-wave admixture.…”

Section: A Application To 11 LImentioning

confidence: 99%

Opening angle and dineutron correlations in knockout reactions with Borromean two-neutron halo nuclei

Casal,

Gómez-Ramos

2021

Preprint

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Background: Knockout reactions with proton targets provide an invaluable tool to access the properties of twoneutron halo nuclei. Recently, experimental results for the average opening angle as a function of the intrinsic neutron momentum in 11 Li have shown a localization of dineutron correlations on the nucleus surface.Purpose: Study the model dependence and the effect of distortion and absorption on the opening angle distributions to assess the reliability of this observable to extract properties of Borromean two-neutron halo nuclei.Method: A quasifree sudden model is used to describe the knockout process, where absorption effects are modeled by the eikonal S-matrix between the proton target and the core of the Borromean nucleus. Final states in momentum space are built within a three-body model for the projectile, which enables the description of momenta and opening angle distributions.Results: A strong dependence on absorption effects is found for the opening angle at large intrinsic momenta, while the region of lower momenta is mostly insensitive to them. Reasonable agreement with the available data is obtained for 11 Li at low momenta with weights for s and p waves different from those previously reported, showing a model dependence in their extraction. For 19 B, test calculations show marked sensitivity to small p-wave components. Conclusions:The opening angle for (p, pn) knockout reactions on Borromean nuclei at small intrinsic momenta is a reliable observable mostly sensitive to the structure of the Borromean nucleus. For larger momenta, the reaction mechanism leads to a larger distortion of the distribution. In the case of nuclei with small components of opposite parity to the dominant ones, this observable can be used to explore them. The relation between dineutron in coordinate space and opening angle in momentum space is found to be model-dependent.

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Section: A Application To 11 LImentioning

confidence: 99%

Opening angle and dineutron correlations in knockout reactions with Borromean two-neutron halo nuclei

Casal,

Gómez-Ramos

2021

Preprint

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“…In the deformed relativistic Hartree-Bogoliubov theory in continuum [9,22], the de-formed relativistic Hartree-Bogoliubov formalism is solved in the Dirac Woods-Saxon basis, in which the radial wave functions have a proper asymptotic behavior at a large distance from the nuclear center [23]. A new nuclear mass table is being prepared using the DRHBc theory [24], which has been previously applied successfully to describe various nuclear properties [8,10,21,[25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Possible existence of bound nuclei beyond neutron drip lines driven by deformation *

Wang

Zhang

et al. 2021

Chinese Phys. C

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Based on the relativistic calculations of the nuclear masses in the transfermium region from No to Ds using the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc), the possible existence of bound nuclei beyond the neutron drip lines is studied. The two-neutron and multi-neutron emission bound nuclei beyond the primary neutron drip line of are predicted in , and isotopes. A detailed microscopic mechanism investigation reveals that nuclear deformation plays a vital role in the existence of bound nuclei beyond the drip line. Furthermore, not only the quadrupole deformation but also the higher orders of deformation are indispensable in the reliable description of the phenomenon of reentrant binding.

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“…In the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) theory [12,13], the deformed relativistic Hartree-Bogoliubov formalism are solved in the Dirac Woods-Saxon basis in which the radial wave functions have a proper asymptotic behavior at large distance from the nuclear center [14]. Most recently, a new nuclear mass table is under preparation by the DRHBc theory [15], which has been previously applied successfully to describe various nuclear properties [16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Possible existence of bound nuclei beyond neutron drip lines driven by deformation

He,

Wang,

Zhang

et al. 2021

Preprint

View full text Add to dashboard Cite

Based on the relativistic calculations of the nuclear masses in the transfermium region from No (Z = 102) to Ds (Z = 110) by the deformed relativistic Hartree-Bogoliubov theory in continuum, the possible existence of the bound nuclei beyond the neutron drip lines is studied. The two-neutron and multi-neutron emission bound nuclei beyond the primary neutron drip line of N = 258 are predicted in Z = 106, 108 and 110 isotopes. Detailed microscopic mechanism investigation reveals that nuclear deformation plays a vital role in the existence of the bound nuclei beyond the drip line. Furthermore, not only the quadrupole deformation β2, but also the higher orders of deformation are indispensible in the reliable description of the phenomenon of the reentrant binding.

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Quasifree Neutron Knockout Reaction Reveals a Small s -Orbital Component in the Borromean Nucleus B17

Cited by 58 publications

References 96 publications

Opening angle and dineutron correlations in knockout reactions with Borromean two-neutron halo nuclei

Opening angle and dineutron correlations in knockout reactions with Borromean two-neutron halo nuclei

Possible existence of bound nuclei beyond neutron drip lines driven by deformation *

Possible existence of bound nuclei beyond neutron drip lines driven by deformation

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