Pole analysis on the doubly charmed meson in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> mass spectrum

In this paper, we study the scattering amplitudes of ${D}^{0}{D}^{0}{\ensuremath{\pi}}^{+}\text{\ensuremath{-}}{D}^{*+}{D}^{0}$ coupled channels based on $K$ matrix within Chew-Mandelstam formalism. The ${D}^{0}{D}^{0}{\ensuremath{\pi}}^{+}$ invariant mass spectrum LHCb is fitted, and pole parameters ${T}_{cc}^{+}$ are extracted. analysis behavior suggests that may originate from a ${D}^{*+}{D}^{0}$ virtual state formed as result an interplay between attractive interaction ${D}^{0}$ ${D}^{*+}$ coupling to channel.