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


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Publication details

All authors or editorsALICE Collaboration

Journal or seriesPhysics Letters B

ISSN0370-2693

eISSN1873-2445

Publication year2025

Publication date12/12/2024

Volume860

Article number139191

PublisherElsevier

Publication countryNetherlands

Publication languageEnglish

DOIhttps://doi.org/10.1016/j.physletb.2024.139191

Publication open accessOpenly available

Publication channel open accessOpen 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.


Keywordsparticle physicsnuclear physics


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Ministry reportingYes

VIRTA submission year2025

Preliminary JUFO rating3


Last updated on 2025-25-01 at 20:25