https://doi.org/10.1140/epja/s10050-023-00980-2
Regular Article - Theoretical Physics
Deuteron production mechanism via azimuthal correlation for 
and p-Pb collisions at LHC energy with the AMPT model
1
Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University, 200433, Shanghai, China
2
Shanghai Research Center for Theoretical Nuclear Physics, NSFC and Fudan University, 200438, Shanghai, China
Received:
13
October
2022
Accepted:
15
March
2023
Published online:
8
April
2023
The study on light nuclei provides information not only for the production mechanism but also for the interactions between nucleons and other particles in the medium. Recently the ALICE Collaboration presented the deuteron transverse momentum spectra in p-p collisions at 
13 TeV as well as in p-Pb collisions at 
5.02 TeV. Using a multiphase transport model with a string melting mechanism and a coalescence afterburner, we successfully reproduce the transverse momentum spectra of deuterons and obtain the conditional yields of deuterons and protons. According to the coalescence model, we predict that there is a nucleon number scaling between the conditional yield ratios of deuterons to protons and the inclusive yield ratios, which is similar to the constituent nucleon number scaling for elliptic flow. It is also foreseen that the near-side suppression in the correlation function may occur as that in two-baryon azimuthal correlations.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
