This study presents the first measurement of the f1(1285) resonance using the ALICE detector in inelastic proton–proton collisions at a center-of-mass energy of 13 TeV. The resonance is reconstructed at midrapidity (|y|< 0.5) through the hadronic decay channel f1(1285)→KS0K±π∓. Key measurements include the determination of its mass, transverse-momentum integrated yield, and average transverse momentum. Additionally, the ratio of the transverse-momentum integrated yield of f1(1285) to pion is compared with calculations from the canonical statistical hadronization model. The model calculation, assuming a zero total strangeness content for f1(1285), reproduces the data within 1σ deviation, shedding light on the quark composition of f1(1285).

Measurement of f1(1285) production in pp collisions at s = 13 TeV

Aglietta L.;Alocco G.;Barlou M.;Beole S.;Bianchi L.;Botta E.;Cerri R.;Ciacco M.;Ferretti A.;Gagliardi M.;Masera M.;Perciballi S.;Pucillo S.;Quaglia L.;Riffero A. G.;Terlizzi L.;Trogolo S.;Vercellin E.;
2025-01-01

Abstract

This study presents the first measurement of the f1(1285) resonance using the ALICE detector in inelastic proton–proton collisions at a center-of-mass energy of 13 TeV. The resonance is reconstructed at midrapidity (|y|< 0.5) through the hadronic decay channel f1(1285)→KS0K±π∓. Key measurements include the determination of its mass, transverse-momentum integrated yield, and average transverse momentum. Additionally, the ratio of the transverse-momentum integrated yield of f1(1285) to pion is compared with calculations from the canonical statistical hadronization model. The model calculation, assuming a zero total strangeness content for f1(1285), reproduces the data within 1σ deviation, shedding light on the quark composition of f1(1285).
2025
866
139562
139562
Aglietta L.; Alocco G.; Barlou M.; Beole S.; Bianchi L.; Botta E.; Cerri R.; Ciacco M.; Ferretti A.; Gagliardi M.; Masera M.; Perciballi S.; Pucillo S...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/2101756
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