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joachiha

Joachim Hansen

SMARTHEP PhD student ESR10

joachiha

Measurement of non-prompt D -meson elliptic flow in Pb–Pb collisions at √sNN=5.02 TeV

Author

  • S. Acharya
  • S. Basu
  • P. Christiansen
  • J. Hansen
  • N Zurlo

Summary, in English

The elliptic flow (v2) of D mesons from beauty-hadron decays (non-prompt D) was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair sNN=5.02 TeV with the ALICE detector at the LHC. The D mesons were reconstructed at midrapidity (| y| < 0.8) from their hadronic decay D → K -π + , in the transverse momentum interval 2 < pT< 12 GeV/c. The result indicates a positive v2 for non-prompt D mesons with a significance of 2.7 σ . The non-prompt D -meson v2 is lower than that of prompt non-strange D mesons with 3.2 σ significance in 2

Department/s

  • Particle and nuclear physics

Publishing year

2023

Language

English

Publication/Series

European Physical Journal C

Volume

83

Issue

12

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Bosons
  • Hadrons
  • Nitrogen compounds
  • Tellurium compounds
  • A-center
  • Center-of-mass energies
  • Centre-of-mass energies
  • D+ mesons
  • Elliptic flows
  • Hadronic decays
  • Measurements of
  • Mid-rapidity
  • Pb-Pb collisions
  • Transverse momenta
  • Uncertainty analysis

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044