Measurement of the $ {\Lambda}_c^{+} $ to D$^{0}$ production ratio in periphera PbPb collisions at $ \sqrt{s_{\textrm{NN}}} $ = 5.02 TeV - INSPIRE

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Measurement of the ${\Lambda}_c^{+}$ to D $^{0}$ production ratio in periphera PbPb collisions at $\sqrt{s_{\textrm{NN}}}$ = 5.02 TeV

LHCb

Collaboration

Oct 13, 2022

17 pages

Published in:

JHEP 06 (2023) 132,
JHEP 05 (2024) 021 (erratum)

Published: Jun 22, 2023
and
Published: May 3, 2024

e-Print:

2210.06939 [hep-ex]

DOI:

10.1007/JHEP06(2023)132 (publication),
10.1007/JHEP05(2024)021 (erratum)

Report number:

LHCb-PAPER-2021-046,
CERN-EP-2022-148

Experiments:

CERN-LHC-LHCb

View in:

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Abstract: (Springer)

We report on a measurement of the

{\Lambda}_c^{+}

to D

^{0}

production ratio in peripheral PbPb collisions at

\sqrt{s_{\textrm{NN}}}

= 5.02 TeV with the LHCb detector in the forward rapidity region 2 < y < 4.5. The

{\Lambda}_c^{+}

(D

^{0}

) hadrons are reconstructed via the decay channel

{\Lambda}_c^{+}

→ pK

^{−}

π

^{+}

(D

^{0}

→ K

^{−}

π

^{+}

) for 2 < p

_{T}

< 8 GeV/c and in the centrality range of about 65–90%. The results show no significant dependence on p

_{T}

, y or the mean number of participating nucleons. They are also consistent with similar measurements obtained by the LHCb collaboration in pPb and Pbp collisions at

\sqrt{s_{\textrm{NN}}}

= 5.02 TeV. The data agree well with predictions from PYTHIA in pp collisions at

\sqrt{s}

= 5 TeV but are in tension with predictions of the Statistical Hadronization model.[graphic not available: see fulltext]

Note:

All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-046.html (LHCb public pages)

Charm Physics
Heavy Ion Experiments
Heavy Quark Production
Relativistic Heavy Ion Physics
heavy ion: scattering
lead
hadronization: statistical
p p: scattering
Lambda/c+: hadroproduction
D0: hadroproduction

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