Search for the decay $χ_{c1}(3872)\toπ^{+}π^{-}χ_{c1}$
BESIII Collaboration, Mikhail N. Achasov, P. Adlarson, X. Ai et autres
Using a data sample corresponding to an integrated luminosity of 10.9 fb$^{-1}$ collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for the decay $χ_{c1}(3872) \to π^{+}π^{-}χ_{c1}$ in the radiative production $e^{+}e^{-} \to γχ_{c1}(3872)$. No significant …