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

Abstract

This study presents the first measurement of the f(1)(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 (vertical bar y vertical bar (KSK +/-)-K-0 pi(-/+). 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 f(1)(1285) to pion is compared with calculations from the canonical statistical hadronization model. The model calculation, assuming a zero total strangeness content for f(1)(1285), reproduces the data within 1 sigma deviation, shedding light on the quark composition of f(1)(1285).