Selecting the events of $ep\rightarrow e\pi ^{+}\pi ^{-}p$ exclusive electroproduction from the CLAS12 detector experimental data

The first results on the selection of events of $ep\rightarrow e\pi ^{+}\pi ^{-}p$ exclusive electroproduction from the CLAS12 detector experimental data in the resonance area for the beam energy $E_e = 6.5$GeV are presented in this report. For the $ep\rightarrow e\pi ^{+}\pi ^{-}p$ reaction the missing mass distributions were obtained for four topologies corresponding to different sets of detected particles. The primary selection criteria were worked out and the invariant mass for the various pairs of particles were obtained. The obtained distributions demonstrate the reliability of the algorithms reconstructing the final particles in exclusive electroproduction reactions.