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

S. Acharya; S. Basu; P. Christiansen; J. Hansen; N Zurlo; ALICE Collaboration

doi:10.1140/epjc/s10052-023-12259-3

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

S. Acharya, S. Basu, P. Christiansen, J. Hansen, N Zurlo, ALICE Collaboration

Particle and nuclear physics

Research output: Contribution to journal › Article › peer-review

Abstract

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

Original language	English
Article number	1123
Journal	European Physical Journal C
Volume	83
Issue number	12
DOIs	https://doi.org/10.1140/epjc/s10052-023-12259-3
Publication status	Published - 2023

Subject classification (UKÄ)

Subatomic Physics

Free 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

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10.1140/epjc/s10052-023-12259-3Licence: CC BY

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

abstract = "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",

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",

author = "S. Acharya and S. Basu and P. Christiansen and J. Hansen and N Zurlo and {ALICE Collaboration}",

year = "2023",

doi = "10.1140/epjc/s10052-023-12259-3",

language = "English",

volume = "83",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer",

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TY - JOUR

T1 - Measurement of non-prompt D -meson elliptic flow in Pb–Pb collisions at √sNN=5.02 TeV

AU - Acharya, S.

AU - Basu, S.

AU - Christiansen, P.

AU - Hansen, J.

AU - Zurlo, N

AU - ALICE Collaboration

PY - 2023

Y1 - 2023

N2 - 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

AB - 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

KW - Bosons

KW - Hadrons

KW - Nitrogen compounds

KW - Tellurium compounds

KW - A-center

KW - Center-of-mass energies

KW - Centre-of-mass energies

KW - D+ mesons

KW - Elliptic flows

KW - Hadronic decays

KW - Measurements of

KW - Mid-rapidity

KW - Pb-Pb collisions

KW - Transverse momenta

KW - Uncertainty analysis

U2 - 10.1140/epjc/s10052-023-12259-3

DO - 10.1140/epjc/s10052-023-12259-3

M3 - Article

SN - 1434-6044

VL - 83

JO - European Physical Journal C

JF - European Physical Journal C

IS - 12

M1 - 1123

ER -

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

Abstract

Subject classification (UKÄ)

Free keywords

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