Jul 4 – 11, 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Study of inclusive production of $S={}$0, 1, 2, or 3 baryons from $\Upsilon(1,2S)$ at Belle

Not scheduled
Melbourne Convention and Exhibition Centre

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy


Prof. Youngjoon Kwon (Yonsei University)


Using samples of 102 million $\Upsilon(1S)$ and 158 million $\Upsilon(2S)$ events and about 70 fb${}^{-1}$ of data taken in the nearby continuum with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider, we compare the inclusive production rates of baryons in 3-gluon vs. quark fragmentation processes. The spectra of $p$, $\Lambda$, $\Sigma$, $\Xi$, and $\Omega$ baryons are compared, and we quantify the enhanced production in 3-gluon mechanisms by studying their dependence on strange quark content. Experimental results are compared with Monte Carlo predictions.

Primary author

Prof. Youngjoon Kwon (Yonsei University)

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