May 15 – 20, 2017
Shanghai Jiao Tong University
Asia/Shanghai timezone
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Study of doubly heavy baryon decays in light-front approach

May 16, 2017, 2:00 PM
Haoran 102 (Shanghai Jiao Tong University)

Haoran 102

Shanghai Jiao Tong University

Xuhui Campus


Mr Zhen-Xing Zhao (Shanghai Jiao Tong University)


In this work, we study the transition processes of doubly heavy baryons
$\Xi_{cc}^{++}$, $\Xi_{cc}^{+}$, $\Omega_{cc}^{+}$, $\Xi_{bc}^{+}$,
$\Xi_{bc}^{0}$, $\Omega_{bc}^{0}$ and $\Omega_{bb}^{-}$. At the
quark level these transtions are depicted by the weak decays of $c\to d/s$
or $b\to u$ and the other two spectator quarks are viewed as a scalar
diquark. We first derived the form factors of these transtions in
light-front approach and then apply them to predict the semi-leptonic
and non-leptonic decay widths of doubly heavy baryons. We find that
some decay channels are sizable and are hopeful to be detected at
the LHC experiment.

Primary authors

Prof. Wei Wang (Shanghai Jiao Tong University) Prof. Fu-Sheng Yu (Lanzhou University) Mr Zhen-Xing Zhao (Shanghai Jiao Tong University)

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