Jul 4 – 11, 2018
Asia/Seoul timezone

Study of inclusive di-hadron and production rates of hyperon and charmed baryon in e+e- colliders

Jul 6, 2018, 11:15 AM
101 (COEX, Seoul)


COEX, Seoul

Parallel Strong Interactions and Hadron Physics Strong Interactions and Hadron Physics


Ralf Seidl (RIKEN)


The inclusive cross sections for di-hadrons of charged pions and kaons (e+e-→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 feed-down contributions from heavy particles are compared for the first time. We also report the first observation of transverse Λ/Λbar 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.

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