charm
type: Thing
description: flavour quantum number representing the difference between the number of charm quarks and charm antiquarks that are present in a particle
additional property: PropertyValue
  property ID: P279
  value: quantum number
additional property: PropertyValue
  property ID: P646
  value: /m/04y5njl
additional property: PropertyValue
  property ID: P1343
  value: Armenian Soviet Encyclopedia, vol. 6
additional property: PropertyValue
  property ID: P2534
  value: C = n_{\mathrm{c}} - n_{\bar{\mathrm c}}
additional property: PropertyValue
  property ID: P2924
  value: 2700480
additional property: PropertyValue
  property ID: P6104
  value: WikiProject Mathematics
additional property: PropertyValue
  property ID: P10283
  value: C2781339351
additional property: PropertyValue
  property ID: P10565
  value: 238082
confidence:
  popularity graph score:
    score: 0.016
    score pct: 2
    tier: long_tail
    components:
      sitelinks: 19
      sitelinks norm: 0.045
      unique citations: 1
      unique citations norm: 0.0
      monthly pageviews: 144
      monthly pageviews norm: 0.0
  sitelinks: 19
  unique citations: 1
  monthly pageviews: 144
  yearly pageviews: 279
  pageview trend:
    m: 2026-07
    v: 144
  pageview trend:
    m: 2026-06
    v: 37
  pageview trend:
    m: 2026-05
    v: 7
  pageview trend:
    m: 2026-05
    v: 16
  pageview trend:
    m: 2026-05
    v: 1
  pageview trend:
    m: 2026-05
    v: 5
  pageview trend:
    m: 2026-05
    v: 3
  pageview trend:
    m: 2026-05
    v: 4
  pageview trend:
    m: 2026-04
    v: 54
  pageview trend:
    m: 2026-04
    v: 7
  pageview trend:
    m: 2026-04
    v: 1
  popularity:
    sitelinks: 19
    max: 423
    pct: 4.5
  tier: long_tail
claims:
  P279:
    value: Q232431
    source count: 0
    confidence: 0.0
    value label: quantum number
  P646:
    value: /m/04y5njl
    source count: 0
    confidence: 0.0
  P1343:
    value: Q124737633
    source count: 0
    confidence: 0.0
    value label: Armenian Soviet Encyclopedia, vol. 6
  P2534:
    value: C = n_{\mathrm{c}} - n_{\bar{\mathrm c}}
    source count: 0
    confidence: 0.0
  P2924:
    value: 2700480
    source count: 0
    confidence: 0.0
  P6104:
    value: Q8487137
    source count: 0
    confidence: 0.0
    value label: WikiProject Mathematics
  P10283:
    value: C2781339351
    source count: 1
    confidence: 0.2
  P10565:
    value: 238082
    source count: 0
    confidence: 0.0
citations:
  source: OpenAlex
  stated in qid: Q107507571
  retrieved: 2022-01-26
meta:
  wikidata id: Q2639620
  domain: general
  level: standard
  html url: https://4ort.xyz/entity/charm-q2639620-2
  markdown url: https://4ort.xyz/entity/charm-q2639620-2.md
  facts url summary: https://4ort.xyz/entity/charm-q2639620-2/facts.json
  facts url standard: https://4ort.xyz/entity/charm-q2639620-2/facts.json
  facts url full: https://4ort.xyz/entity/charm-q2639620-2/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-24T00:53:38.372154Z
  entity updated at: 2026-04-10T23:36:23.643014+00:00Z
  entity created at: 2026-04-10T23:36:23.643014+00:00Z