Single Inclusive ${\pi }^{\pm }$ and $K^{\pm }$ Production in $e^{+}{e}^{-}$ Annihilation at center-of-mass Energies from 2.000 to 3.671GeV

Abstract

Using data samples with a total integrated luminosity of 253 $\mathrm{p}{\mathrm{b}}^{-1}$ collected by the BESIII detector operating at the BEPCII collider, the differential cross-sections of inclusive ${\pi }^{\pm }$ and $K^{\pm }$ production, as a function of momentum and normalized by the total hadronic cross-section, are measured at center-of-mass energies from 2.000 to 3.671 GeV. The measured ${\pi }^{\pm }$ cross sections are consistent with the previously reported ${\pi }^0$ cross-sections by BESIII, while the $K^{\pm }$ cross sections are systematically higher than the $K_S^0$ cross sections by a factor of approximately 1.4. These new results are in agreement with state-of-the-art QCD analyses at next-to-next-to-leading order accuracy, particularly in the large hadron momentum region at energy scales down to 3 GeV. These findings support the validity of isospin symmetry in parton fragmentation processes.

References in corpus (9)

• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Multiplicities of charged pions and kaons from semi-inclusive deep-inelastic scattering by the proton and the deuteron
• Single Spin Asymmetries in Charged Kaon Production from Semi-Inclusive Deep Inelastic Scattering on a Transversely Polarized ${}^3\mathrm{He}$ Target
• Modeling interactions of photons with pseudoscalar and vector mesons
• Measurement of the Cross Section for $e^{+}{e}^{-}\to$ hadrons at Energies from 2.2324 to 3.6710 GeV
• Global analysis of fragmentation functions to charged hadrons with high-precision data from the LHC
• Simultaneous Determination of Fragmentation Functions and Test on Momentum Sum Rule
• Measurements of Differential Cross Sections of Inclusive ${\pi }^0$ and $K_S^0$ Production in $e^{+}{e}^{-}$ Annihilation at Energies from 2.2324 to 3.6710 GeV
• Production cross sections of light and charmed mesons in $e^{+}{e}^{-}$ annihilation near 10.58 GeV