Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Parallel: Strong Interactions and Hadron Physics
Study of inclusive di-hadron and production rates of hyperon and charmed baryon in $e^{+}e^{-}$ colliders
R. Seidl* On behalf of the BELLE Collaboration
*corresponding author
Full text: pdf
Published on: August 02, 2019
Abstract
The inclusive cross sections for di-hadrons of charged pions and kaons ($e^{+}e^{-}$ $\rightarrow$ $hhX$), hyperons
and charmed baryons in $e^{+}e^{-}$ annihilation are reported. For di-hadrons of charged pions and
kaons, the cross sections are obtained as a function of the total fractional energy and invariant mass
for any di-hadron combination in the same hemisphere and di-hadron fragmentation functions are
probed. For hyperons and charmed baryons, the direct production cross sections after subtracting
the feeddown contributions from heavy particles are compared for the first time. We also report
the first observation of transverse $\Lambda$ polarization in $e^{+}e^{-}$ colliders. The analyses are based on a
data set recorded by the Belle detector from $e^{+}e^{-}$ collisions produced by the KEKB collider.
DOI: https://doi.org/10.22323/1.340.0310
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