$${{J}/\psi }$$ J / ψ and $${{D}} ^0$$ D 0 production in $$\sqrt{s_{\scriptscriptstyle \text {NN}}} =68.5\,\text {GeV} $$ s NN = 68.5 GeV PbNe collisions
Name
10052_2023_Article_11674.pdf
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Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Beteta, C. A.
Abudinén, F.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Afsharnia, H.
Agapopoulou, C.
Aidala, C. A.
Date Issued
July 25, 2023
Publisher
Springer Berlin Heidelberg
Citation
The European Physical Journal C. 2023 Jul 25;83(7):658
Version
Final published version
Abstract
Abstract
The first measurement of
$${{J}/\psi }$$
J
/
ψ
and
$${{D}} ^0$$
D
0
production in PbNe collisions by the LHCb experiment in its fixed-target configuration is reported. The production of
$${{J}/\psi }$$
J
/
ψ
and
$${{D}} ^0$$
D
0
mesons is studied with a beam of lead ions with an energy of 2.5
$$\,\text {TeV}$$
TeV
per nucleon colliding on gaseous neon targets at rest, corresponding to a nucleon-nucleon centre-of-mass energy of
$$\sqrt{s_{\scriptscriptstyle \text {NN}}} =68.5\,\text {GeV} $$
s
NN
=
68.5
GeV
. The
$${{J}/\psi }$$
J
/
ψ
/
$${{D}} ^0$$
D
0
production cross-section ratio is studied as a function of rapidity, transverse momentum and collision centrality. These data are compared with measurements from
$$p\text {Ne}$$
p
Ne
collisions at the same energy and show no difference in the observed
$${{J}/\psi }$$
J
/
ψ
suppression trend when comparing
$$p\text {Ne}$$
p
Ne
and PbNe peripheral collisions with PbNe central collisions.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-023-11674-w
