Abstract
We show that the experimental data of midrapidity spectra for , , , , , and in minimum-bias collisions at can be well fitted by the quark combination mechanism with the parametrized up(down) quark spectrum and strange quark spectrum at hadronization. The averaged transverse momentum and spectrum ratios such as and calculated from quark combination reproduce the data quite well. The available data of hadronic spectra released by ALICE collaboration in the first three high-multiplicity classes of collisions at are also well fitted. The extracted quark spectra at hadronization exhibit a dependence on the multiplicity class and also show a certain similarity to those obtained in collisions at LHC and in relativistic heavy ion collisions. We make predictions for other hadrons, and propose two scaling behaviors among decuplet baryons and vector mesons as the effective probe of hadron production mechanism at such high collision energies.
3 More- Received 20 August 2017
DOI:https://doi.org/10.1103/PhysRevD.96.094010
© 2017 American Physical Society