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ARGUS_1989_I280943

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Measurements of the scaled momentum spectrum for $D_1(2420)^0$ and $D^*_2(2460)^0$ production in $e^+e^-$ collisions at 10 GeV. The decays $D_1(2420)^0, D^*_2(2460)^0 \to D^{*+}\pi^-\to D^0\pi^+\pi^-$ were used and the helicity angle, i.e. the angle between the two pions in the rest frame of the $D^*$ are is measured.

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