A Monte Carlo Study of Single Baryon Reconstruction Method

Abstract

A Monte Carlo study for single baryon reconstruction method is presented based on two-body baryonic decays of charmonium, $jJ/\ddot{I}ˆ$, $\ddot{I}ˆ(3686)\to \hat{I}ž\bar{\hat{I}}ž$ at BESIII experiment. As a result, we find that the detection efficiency for single baryon reconstruction method can be increased by a factor of $\sim$4 relative to the traditional full-reconstruction method. It indicates that single baryon reconstruction method could be used in the other two-body baryonic decays of charmonium, such as $J/\ddot{I}ˆ$, $\ddot{I}ˆ(3686)\to \hat{I}ž(1530)\bar{\hat{I}}ž(1530)$, $\hat{I}ž(1530)\bar{\hat{I}}ž$, whose expected yields are estimated based on single baryon reconstruction method. The expected uncertainties for the measurements of the angular distribution parameters are also discussed.

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