{
  "abstract": "These proceedings present the latest measurements of time-dependent properties of $b$-hadrons using the LHCb Run 2 data set. Three results are presented. The first of these is a measurement of the CKM phase $ϕ_s$ with $B_s^0\\to J/ψπ^+π^-$. This result improves the determination in this channel, obtaining a result of $ϕ_s = -77\\pm34(\\text{stat})\\pm7(\\text{syst})$ mrad. This result is included in the LHCb global average to obtain $ϕ_s = -41\\pm17$ mrad. Additionally, a determination of the penguin contributions, $Δϕ_s$, to measurements of $ϕ_s$ using $B^0\\to J/ψρ^0(770)$ is presented. This measurement constitutes the first observation of CP-violation in $B_0 \\to J/ψρ^0(770)$ decays. The CKM phase $2β$ is measured and is determined to be $2β^{\\text{eff}}_{ccd} = 0.710\\pm0.084\\pm0.051$ rad. The most stringent constraint on penguin contributions is obtained and determined to be $Δϕ_s = 5.0\\pm4.6$ mrad. Finally, the first measurement of time-dependent CP-violation in a $b\\to s l^+ l^-$ process using the decay $B_s^0 \\to K_S μ^+ μ^- $ is presented. The time-dependent coefficients of this decay are determined to be $C=-0.13\\pm0.32(\\text{stat})\\pm0.04(\\text{syst})$ and $S=+0.82\\pm0.29(\\text{stat})\\pm0.05(\\text{syst})$.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.26188",
  "author_total": 1,
  "authors": [
    {
      "name": "Lucas Foreman"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/exs7thrfx3as9.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.26188",
  "fulltext_url": null,
  "id": "exs7thrfx3as9",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.26188",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-ex"
    ],
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7223063116",
  "pdf_url": "https://arxiv.org/pdf/2610.26188",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/exs7thrfx3as9.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.26188",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.26188"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ex",
      "subfield": "high-energy"
    }
  ],
  "title": "Measurements of time-dependent b-hadron properties in LHCb",
  "title_text": "Measurements of time-dependent b-hadron properties in LHCb",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/exs7thrfx3as9",
  "venue": "arXiv",
  "versions": []
}