User talk:Urayness/sandbox

"The shape of protons and neutrons"
In the second paragraph of this section, a quick definition/explanation of spectroscopic quadropole moment would help better underscore its importance as distinct from intrinsic quadrupole moment in the discussion that follows. Reference is made to both a ∆+(1232) excited state and ∆(1232) excited state—the former has a + while the latter does not: are these different? Consider moving the sentence “The proton and neutron have nearly the same mass (938 MeV), and may be regarded as one particle…” to the opening line of the entire section; from it may follow the discussion on the shape of nucleons more generally. Swiss2024 (talk) 22:25, 29 March 2024 (UTC)

Also, in the third paragraph the abrupt introduction of fermions without explanation may be confusing. The final sentence of the section, meanwhile, seems deserving of a citation and a concluding statement that, like the neutron, the same charge symmetry dynamic results in an identical prolate structure for the proton. Consider a quick reference to the figure to the right illustrating this. — Preceding unsigned comment added by Swiss2024 (talk • contribs) 22:28, 29 March 2024 (UTC)

"The nucleon-nucleon interaction and the spatial extent of a nuclide"
Mention of dineutrons and diprotons and their instability seems important and possibly deserves a concluding statement about their implications, especially in terms of the section's theme of the spatial extent of a nucleus. The section title's mention of "nuclide" seems possibly confusing; would "nucleus" be more accurate given the spatial extent of a nuclide includes its electron cloud? Swiss2024 (talk) 22:51, 29 March 2024 (UTC)

"Radial charge density and the structures of light nuclides"
Mention of experimental findings of a positive core and negative skin for a neutron seems to beg mention of possible correspondence to the neutron's constituent down-quarks on either side of a central up-quark, as discussed earlier. Swiss2024 (talk) 23:06, 29 March 2024 (UTC)

“The alpha particle configurations and nuclear shape”
Section stresses that seven of the eight nuclides comprising 99% of non-hydrogen matter are alpha nuclides (viz. Nitrogen is the exception). The last sentence of the section suggests the concluding table will address the seven, but it actually lists only five. Consider reminding the reader that helium itself defines the alpha particle; nitrogen is the exceptional non-alpha nuclide; but what of unlisted silicon? Also consider explicitly linking the section's discussion to the adjacent figure on nucleosynthetic processes. Swiss2024 (talk) 23:49, 29 March 2024 (UTC)

Nuclear spin as a factor in its size and shape
Consider including discussion of the natural rotation of a nucleus in space as a factor in defining its effective size and shape, including the impact of tumbling vs precessing on effective nuclear radius. Swiss2024 (talk) 00:05, 30 March 2024 (UTC)