https://doi.org/10.1140/epja/s10050-021-00408-9
Regular Article – Theoretical Physics
Ratio of cross-sections of kaons to pions produced in pp collisions as a function of 
Joint Institute for Nuclear Research, Joliot Curie 6, 141980, Dubna, Russian Federation
Received:
10
December
2020
Accepted:
20
February
2021
Published online:
9
March
2021
A calculation of the inclusive spectra of pions and kaons produced in pp collisions as functions of their transverse momentum 
at mid-rapidity is presented within the self-similarity approach. A satisfactory description of the data within a wide range of initial energies is presented. We focus mainly on the ratio of cross-sections of 
to 
mesons produced in pp collisions as a function of . A fast rise of this ratio, when the initial energy increases starting from the kaon production threshold up to 
20–30 GeV, is revealed together with its very slow increase up to LHC energies. The energy dependence of this ratio is due to the conservation laws of four-momenta and quantum numbers of the initial and produced hadrons. The more or less satisfactory agreement of these ratios with NA61/SHINE, RHIC and LHC data is demonstrated.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
