Production cross sections of light and charmed mesons in e+ee^+e^- annihilation near 10.58 GeV

Collaboration
Nov 18, 2024
21 pages
e-Print:
Report number:
  • Belle Preprint 2024-09,
  • KEK Preprint 2024-30
Experiments:

Citations per year

0 Citations
Abstract: (arXiv)
We report measurements of production cross sections for ρ+\rho^+, ρ0\rho^0, ω\omega, K+K^{*+}, K0K^{*0}, ϕ\phi, η\eta, KS0K_S^0, f0(980)f_0(980), D+D^+, D0D^0, Ds+D_s^+, D+D^{*+}, D0D^{*0}, and Ds+D^{*+}_s in e+ee^+e^- collisions at a center-of-mass energy near 10.58 GeV. The data were recorded by the Belle experiment, consisting of 571 fb1^{-1} at 10.58 GeV and 74 fb1^{-1} at 10.52 GeV. Production cross sections are extracted as a function of the fractional hadron momentum xpx_p . The measurements are compared to {\sc pythia} Monte Carlo generator predictions with various fragmentation settings, including those that have increased fragmentation into vector mesons over pseudo-scalar mesons. The cross sections measured for light hadrons are consistent with no additional increase of vector over pseudo-scalar mesons. The charmed-meson cross sections are compared to earlier measurements -- when available -- including older Belle results, which they supersede. They are in agreement before application of an improved initial-state radiation correction procedure that causes slight changes in their \xp shapes.
Note:
  • 21 pages, 18 figures, submitted to Phys. Rev. D