Measurement of the shape of the Bs0→Ds∗−μ+νμ differential decay rate

The LHCb Collaboration

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Abstract

The shape of the Bs0→Ds∗−μ+νμ differential decay rate is obtained as a function of the hadron recoil parameter using proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.7 fb−1 collected by the LHCb detector. The Bs0→Ds∗−μ+νμ decay is reconstructed through the decays Ds∗−→Ds−γ and Ds−→K−K+π−. The differential decay rate is fitted with the Caprini-Lellouch-Neubert (CLN) and Boyd-Grinstein-Lebed (BGL) parametrisations of the form factors, and the relevant quantities for both are extracted. [Figure not available: see fulltext.]

Original languageEnglish
Article number144
Number of pages32
JournalJournal of High Energy Physics
Volume2020
Issue number12
DOIs
Publication statusPublished - Dec 2020

Keywords

  • B physics
  • Flavor physics
  • Hadron-Hadron scattering (experiments)
  • MONTE-CARLO
  • HEAVY
  • MODEL-INDEPENDENT EXTRACTION
  • CB-VERTICAL-BAR
  • TOOL

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