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Creators/Authors contains: "Ramirez-Alvarez, C O"

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  1. A<sc>bstract</sc> ThepT-differential cross section ofωmeson production in pp collisions at$$ \sqrt{s} $$ s = 13 TeV at midrapidity (|y| <0.5) was measured with the ALICE detector at the LHC, covering an unprecedented transverse-momentum range of 1.6< pT<50 GeV/c. The meson is reconstructed via theω→π+ππ0decay channel. The results are compared with various theoretical calculations: PYTHIA8.2 with the Monash 2013 tune overestimates the data by up to 50%, whereas good agreement is observed with Next-to-Leading Order (NLO) calculations incorporatingωfragmentation using a broken SU(3) model. Theω/π0ratio is presented and compared with theoretical calculations and the available measurements at lower collision energies. The presented data triples thepTranges of previously available measurements. A constant ratio ofCω/π0= 0.578 ± 0.006 (stat.) ± 0.013 (syst.) is found above a transverse momentum of 4 GeV/c, which is in agreement with previous findings at lower collision energies within the systematic and statistical uncertainties. 
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    Free, publicly-accessible full text available April 1, 2026