Measurement of the Λc+ to D⁰ production ratio in peripheral PbPb collisions at √sNN = 5.02 TeV
Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Abellan Beteta, C.
Abudinén, F.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Afsharnia, H.
Agapopoulou, C.
Aidala, C. A.
Date Issued
June 22, 2023
Publisher
Springer Berlin Heidelberg
Citation
Journal of High Energy Physics. 2023 Jun 22;2023(6):132
Version
Final published version
Abstract
Abstract
We report on a measurement of the
Λ
c
+
$$ {\Lambda}_c^{+} $$
to D0 production ratio in peripheral PbPb collisions at
s
NN
$$ \sqrt{s_{\textrm{NN}}} $$
= 5.02 TeV with the LHCb detector in the forward rapidity region 2 < y < 4.5. The
Λ
c
+
$$ {\Lambda}_c^{+} $$
(D0) hadrons are reconstructed via the decay channel
Λ
c
+
$$ {\Lambda}_c^{+} $$
→ pK−π+ (D0 → K−π+) for 2 < pT < 8 GeV/c and in the centrality range of about 65–90%. The results show no significant dependence on pT, 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
s
NN
$$ \sqrt{s_{\textrm{NN}}} $$
= 5.02 TeV. The data agree well with predictions from PYTHIA in pp collisions at
s
$$ \sqrt{s} $$
= 5 TeV but are in tension with predictions of the Statistical Hadronization model.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP06(2023)132
