Property talk:P1123

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parity quantum number
property of particles

Description	Characteristic property of any elementary particle - parity (Q141160)
Represents	parity (Q141160)
Data type	Quantity
Template parameter	de:Vorlage:Infobox Teilchen
Domain	According to this template: particles - elementary particle (Q43116) According to statements in the property: type of quantum particle (Q22675015) or isotope (Q25276) When possible, data should only be stored as statements
Allowed units	not applicable
Example	electron (Q2225) → 1 photon (Q3198) → −1
See also	charge conjugation quantum number (P7527)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P1123 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 3,122 Main statement 3,120 >99.9% of uses Qualifier 2 <0.1% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Type “type of quantum particle (Q22675015), isotope (Q25276)”: item must contain property “instance of (P31)” with classes “type of quantum particle (Q22675015), isotope (Q25276)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1123#Type Q22675015, Q25276, SPARQL

No bounds: values can't have any bounds (e.g. 1 not 1±0) (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1123#No Bounds, SPARQL

Units: “novalue”: value unit must be one of listed. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1123#Units

Integer: values should be integers (ie. they shouldn't have a fractional part) (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1123#integer, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P1123#Scope, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1123#Entity types

This property is being used by: hy:Կաղապար:Տեղեկաքարտ Տարրական մասնիկ ca:Plantilla:Infotaula de partícula, ca:Plantilla:Infotaula isòtop Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

One of -1, 1: value must be one of the specified items. Please expand list if needed.

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1123#One of, values statistics

Isotope

‎APSbot is currently adding the spin on all isotopes item (see for example this diff). As this property expects to be used only on subatomic particles, isotope items appear in the constraint violations report. Would it be possible possible to add the posibility to use this property also for isotope items in order to describe the spin and the parity of their ground state and/or their isomeric state if they exist? Pamputt (talk) 14:53, 25 June 2016 (UTC)

Ah, I see I made a note many months ago on spin quantum number (P1122) asking about this, but then forgot it was an issue when I added a modified script to the bot to pull in the other pieces of info from NNDC. Technically, nuclides are indeed subatomic, so the problem with this constraint is the limitation to elementary particles here, which is clearly wrong. Although there is perhaps some ambiguity in the meaning of "isotope" - is it the nuclide, or the nuclide plus its normal atomic state electron cloud? What the bot is entering obviously is just the spin and parity values of the nuclide itself. I'm not sure if we ought to make that clearer somehow. In any case, for now I'm going to modify these constraints to allow "isotope", but it probably should be broader than that too. ArthurPSmith (talk) 00:19, 26 June 2016 (UTC)

@ArthurPSmith: thanks for the modification on the constrains. For the rest, I agree with your definition of the spin for isotopes and nuclides. Pamputt (talk) 18:22, 27 June 2016 (UTC)