Search for the decay ${\chi }_{c1}(3872)\to {\pi }^{+}{\pi }^{-}{\chi }_{c1}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

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 t…