A1 Journal article (refereed)
Rapidity dependence of antideuteron coalescence in pp collisions at √ s=13 TeV with ALICE (2025)
ALICE Collaboration. (2025). Rapidity dependence of antideuteron coalescence in pp collisions at √ s=13 TeV with ALICE. Physics Letters B, 860, Article 139191. https://doi.org/10.1016/j.physletb.2024.139191
JYU authors or editors
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Publication details
All authors or editors: ALICE Collaboration
Journal or series: Physics Letters B
ISSN: 0370-2693
eISSN: 1873-2445
Publication year: 2025
Publication date: 12/12/2024
Volume: 860
Article number: 139191
Publisher: Elsevier
Publication country: Netherlands
Publication language: English
DOI: https://doi.org/10.1016/j.physletb.2024.139191
Publication open access: Openly available
Publication channel open access: Open Access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/99456
Web address of parallel published publication (pre-print): https://doi.org/10.48550/arXiv.2407.10527
Abstract
The production yields of antideuterons and antiprotons are measured in pp collisions at a center-of-mass energy of s=13 TeV, as a function of transverse momentum (pT) and rapidity (y), for the first time rapidity-differentially up to |y|=0.7. The measured spectra are used to study the pT and rapidity dependence of the coalescence parameter B2, which quantifies the coalescence probability of antideuterons. The pT and rapidity dependence of the obtained B2 is extrapolated for pT>1.7 GeV/c and |y|>0.7 using the phenomenological antideuteron production model implemented in PYTHIA 8.3 as well as a baryon coalescence afterburner model based on EPOS 3. Such measurements are of interest to the astrophysics community, since they can be used for the calculation of the flux of antinuclei from cosmic rays, in combination with coalescence models.
Keywords: particle physics; nuclear physics
Contributing organizations
Related projects
- Center of Excellence in Quark Matter
- Räsänen, Sami
- Research Council of Finland
- Center of Excellence in Quark Matter
- Kim, Dong
- Research Council of Finland
Ministry reporting: Yes
VIRTA submission year: 2025
Preliminary JUFO rating: 3