Papers › Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √(s_(NN)) = 2.76 TeV
Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √(s_(NN)) = 2.76 TeV
ALICE Collaboration
The archive published only this paper's code-link row. Authors, date and abstract are from arXiv's metadata (CC0), read from the Kaggle arXiv metadata snapshot of 2026-09-12 where its title matched the archive's; the title is the archive's.
The production yield of the Λ(1520) baryon resonance is measured at mid-rapidity in Pb-Pb collisions at √(s_(NN)) = 2.76 TeV with the ALICE detector at the LHC. The measurement is performed in the Λ(1520)→pK⁻ (and charge conjugate) hadronic decay channel as a function of the transverse momentum (p_T) and collision centrality. The p_T-integrated production rate of Λ(1520) relative to Λ in central collisions is suppressed by about a factor of 2 with respect to peripheral collisions. This is the first observation of the suppression of a baryonic resonance at the LHC and the first 3σ evidence of Λ(1520) suppression within a single collision system. The measured Λ(1520)/Λ ratio in central collisions is smaller than the value predicted by the statistical hadronisation model calculations. The shape of the measured p_T distribution and the centrality dependence of the suppression are reproduced by the EPOS3 Monte Carlo event generator. The measurement adds further support to the formation of a dense hadronic phase in the final stages of the evolution of the fireball created in heavy-ion collisions, lasting long enough to cause a significant reduction in the observable yield of short-lived resonances.
Code
Repository list and official/mentioned flags are the archive's, frozen 2025-07-28. Reachability, where shown, is from one Syntology probe window (2026-09-16 to 2026-09-18); repositories not probed show nothing. GitHub stars are not tracked.
Code Syntology ran Syntology
Not run by Syntology. Nothing on this page verifies that the listed code works.
Results from the paper archive 2025-07-28
No leaderboard rows for this paper in the archive.
Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections