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Aug 16 – 21, 2019
Guilin Bravo Hotel, Guilin, China
Asia/Shanghai timezone

Measurement of absolute branching fraction of Xi_c baryon at Belle

Aug 21, 2019, 11:30 AM
21m
Ludi Room (Guilin Bravo Hotel, Guilin, China)

Ludi Room

Guilin Bravo Hotel, Guilin, China

14 South Ronghu Road, Xiangshan, Guilin 541002, Guangxi, China
Parallel Session 2: Baryon spectroscopy Session 2: Baryon sepctroscopy

Speaker

Mr Yubo Li (Peking Uniersity)

Description

The branching fractions of ground state charmed baryon are not measured so far except for the $\Lambda_c$. Only the branching fractions relative to the primary decay modes are measured. The measurement is important to test our understanding of weak decay of baryons and measurement of absolute production cross sections. We report first measurement of the absolute branching fraction of $\Xi_c^0$ decaying into $\Xi\pi$, $\Lambda K \pi$, and $pKK\pi$ and $\Xi_c^+$ decaying into $\Xi\pi\pi$ and $pK\pi$. The measurement is based on Belle data set with an integrated luminosity of 711 ${\mathrm fb}^{-1}$ collected at the $\Upsilon(4S)$ resonance.

Primary author

Mr Yubo Li (Peking Uniersity)

Presentation materials