Observation of the decays ${\chi }_{cJ}\to {\Sigma }^0\bar{p}{K}^{+}+c.c.(J=0,1,2)$

Abstract

The decays ${\chi }_{cJ}\to {\Sigma }^0\bar{p}{K}^{+}+c.c.(J=0,1,2)$ are studied via the radiative transition $\psi (3686)\to \gamma {\chi }_{cJ}$ based on a data sample of $(448.1\pm 2.9)\times 10^6$ $\psi (3686)$ events collected with the BESIII detector. The branching fractions of ${\chi }_{cJ}\to {\Sigma }^0\bar{p}{K}^{+}+c.c.(J=0,1,2)$ are measured to be $(3.03\pm 0.12\pm 0.15)\times 10^{-4}$, $(1.46\pm 0.07\pm 0.07)\times 10^{-4}$, and $(0.91\pm 0.06\pm 0.05)\times 10^{-4}$, respectively, where the first uncertainties are statistical and the second are systematic. In addition, no evident structure is found for excited baryon resonances on the two-body subsystems with the limited statistics.

arXiv comment9 pages, 16 figures

References in corpus (14)

• Design and Construction of the BESIII Detector
• The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
• Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations
• Future Physics Programme of BESIII
• Search for hadronic transition ${\chi }_{cJ}\to {\eta }_c{\pi }^{+}{\pi }^{-}$ and observation of ${\chi }_{cJ}\to K\bar{K}\pi \pi \pi$
• Study of ${\chi }_{cJ}$ radiative decays into a vector meson
• J/psi and psi(2S) Radiative Transitions to eta_c
• Determination of the number of $\psi (3686)$ events at BESIII
• An amplitude analysis of the ${\pi }^0{\pi }^0$ system produced in radiative $J/\psi$ decays
• Search for a light exotic particle in J/psi radiative decays
• Measurement of B(J/psi->eta_c gamma) at KEDR
• Measurements of psi'-> pbar K+ sigma0 and chi_cj->pbar K+ Lambda
• Measurement of higher-order multipole amplitudes in $\psi (3686)\to \gamma {\chi }_{c1,2}$ with ${\chi }_{c1,2}\to \gamma J/\psi$ and search for the transition ${\eta }_c(2S)\to \gamma J/\psi$
• First observation of the decay ${\chi }_{cJ}\to {\Sigma }^{+}\bar{p}{K}_S^0+c.c.(J=0,1,2)$

Cited by in corpus (1)

• Observation of ${\chi }_{cJ}\to p\bar{p}{K}_S^0{K}^{-}{\pi }^{+}+c.c.$