https://doi.org/10.1140/epjc/s10052-019-7467-z
Regular Article - Theoretical Physics
Up-down asymmetries of charmed baryon three-body decays
1
School of Physics and Information Engineering, Shanxi Normal University, Linfen, 041004, China
2
Department of Physics, National Tsing Hua University, Hsinchu, 300, Taiwan
3
Physics Division, National Center for Theoretical Sciences, Hsinchu, 300, Taiwan
* e-mail: geng@phys.nthu.edu.tw
Received:
2
October
2019
Accepted:
6
November
2019
Published online:
19
November
2019
We study the up-down asymmetries in the three-body anti-triplet charmed baryon decays of 
with the 
flavor symmetry, where 
presents the anti-triplet charmed baryon of 
, while 
and 
denote octet baryon and meson states, respectively. By assuming the s-wave meson-pairs to be the dominant constituents in final state configurations, we can write the spin-dependent decay amplitude into parity-conserving and parity-violating parts, parametrized by 6 real parameters under , respectively. Fitting these parameters by 16 experimental data points with the minimum 
method, we obtain that 
. With the fitted parameters, we evaluate the up-down asymmetries along with the decay branching ratios of . Some of these up-down asymmetries are accessible to the experiments at BESIII, BELLE-II and LHCb.
© The Author(s), 2019
