scholarly journals Proton-induced deuteron knockout reaction as a probe of an isoscalar proton-neutron pair in nuclei

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
Yoshiki Chazono ◽  
Kenichi Yoshida ◽  
Kazuki Yoshida ◽  
Kazuyuki Ogata
Keyword(s):  
Knockout Reaction ◽  
Neutron Pair

scholarly journals Crystal Structure of Moganite and Its Anisotropic Atomic Displacement Parameters Determined by Synchrotron X-ray Diffraction and X-ray/Neutron Pair Distribution Function Analyses

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 272
Author(s):  
Seungyeol Lee ◽  
Huifang Xu ◽  
Hongwu Xu ◽  
Joerg Neuefeind
Keyword(s):  
Crystal Structure ◽  
Distribution Function ◽  
Single Crystal ◽  
Pair Distribution Function ◽  
Atomic Displacement ◽  
Single Crystal Xrd ◽  
X Ray Diffraction ◽  
X Ray ◽  
Neutron Pair ◽  
Atomic Displacement Parameters

The crystal structure of moganite from the Mogán formation on Gran Canaria has been re-investigated using high-resolution synchrotron X-ray diffraction (XRD) and X-ray/neutron pair distribution function (PDF) analyses. Our study for the first time reports the anisotropic atomic displacement parameters (ADPs) of a natural moganite. Rietveld analysis of synchrotron XRD data determined the crystal structure of moganite with the space group I2/a. The refined unit-cell parameters are a = 8.7363(8), b = 4.8688(5), c = 10.7203(9) Å, and β = 90.212(4)°. The ADPs of Si and O in moganite were obtained from X-ray and neutron PDF analyses. The shapes and orientations of the anisotropic ellipsoids determined from X-ray and neutron measurements are similar. The anisotropic ellipsoids for O extend along planes perpendicular to the Si-Si axis of corner-sharing SiO4 tetrahedra, suggesting precession-like movement. Neutron PDF result confirms the occurrence of OH over some of the tetrahedral sites. We postulate that moganite nanomineral is stable with respect to quartz in hypersaline water. The ADPs of moganite show a similar trend as those of quartz determined by single-crystal XRD. In short, the combined methods can provide high-quality structural parameters of moganite nanomineral, including its ADPs and extra OH position at the surface. This approach can be used as an alternative means for solving the structures of crystals that are not large enough for single-crystal XRD measurements, such as fine-grained and nanocrystalline minerals formed in various geological environments.

scholarly journals Single-Neutron Knockout Reaction from 30Ne

2015 ◽  
Author(s):  
H. Liu ◽  
J. Lee ◽  
P. Doornenbal ◽  
H. Scheit ◽  
S. Takeuchi ◽  
...  
Keyword(s):  
Single Neutron ◽  
Knockout Reaction

Three-Body Correlations In 6He Revealed In The Quasi-Free Knockout Reaction 4He(6He,2α)2n

2007 ◽  
Author(s):  
S. I. Sidorchuk ◽  
A. S. Fomichev ◽  
M. S. Golovkov ◽  
V. A. Gorshkov ◽  
A. V. Gorshkov ◽  
...  
Keyword(s):  
Knockout Reaction ◽  
Three Body

scholarly journals Analysis of proton and neutron pair breakings: High-spin structures of 124–127 Te isotopes

2015 ◽  
Vol 942 ◽  
pp. 1-17 ◽  
Author(s):  
Vikas Kumar ◽  
P.C. Srivastava ◽  
M.J. Ermamatov ◽  
Irving O. Morales
Keyword(s):  
High Spin ◽  
Spin Structures ◽  
Neutron Pair

Knockout reaction induced by 6 He at 61.2 MeV/u

2011 ◽  
Vol 35 (10) ◽  
pp. 891-895 ◽  
Author(s):  
Lin-Hui Lü ◽  
Yan-Lin Ye ◽  
Dong-Xing Jiang ◽  
Hui Hua ◽  
Tao Zheng ◽  
...  
Keyword(s):  
Knockout Reaction

scholarly journals Recoil proton tagged knockout reaction for 8He

2012 ◽  
Vol 707 (1) ◽  
pp. 46-51 ◽  
Author(s):  
Z.X. Cao ◽  
Y.L. Ye ◽  
J. Xiao ◽  
L.H. Lv ◽  
D.X. Jiang ◽  
...  
Keyword(s):  
Recoil Proton ◽  
Knockout Reaction
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