Study of $e^{+}{e}^{-}\to D^{+}{D}^{-}{\pi }^{+}{\pi }^{-}$ at center-of-mass energies from 4.36 to 4.60 GeV

Abstract

We report a study of the $e^{+}{e}^{-}\to D^{+}{D}^{-}{\pi }^{+}{\pi }^{-}$ process using $e^{+}{e}^{-}$ collision data samples with an integrated luminosity of $2.5{\mathrm{fb}}^{-1}$ at center-of-mass energies from 4.36 to $4.60\mathrm{GeV}$, collected with the BESIII detector at the BEPCII storage ring. The $D_1(2420{)}^{+}$ is observed in the $D^{+}{\pi }^{+}{\pi }^{-}$ mass spectrum. The mass and width of the $D_1(2420{)}^{+}$ are measured to be $(2427.2\pm 1.0_{stat.}\pm 1.2_{syst.})\mathrm{MeV}/{\mathrm{c}}^2$ and $(23.2\pm 2.3_{stat.}\pm 2.3_{syst.})\mathrm{MeV}$, respectively. The first errors are statistical and the second ones are systematic. In addition, the Born cross sections of the $e^{+}{e}^{-}\to D_1(2420{)}^{+}{D}^{-}+c.c.\to D^{+}{D}^{-}{\pi }^{+}{\pi }^{-}$ and $e^{+}{e}^{-}\to \psi (3770){\pi }^{+}{\pi }^{-}\to D^{+}{D}^{-}{\pi }^{+}{\pi }^{-}$ processes are measured as a function of the center-of-mass energy.

arXiv commentUpdated version published in PLB

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• The process $e^{+}{e}^{-}\to \pi \pi X(3823)$ in the soft pion limit

Cited by in corpus (5)

• Observation of Three Charmoniumlike States with $J^{PC}=1^{--}$ in $e^{+}{e}^{-}\to D^{\ast 0}{D}^{\ast -}{\pi }^{+}$
• Measurement of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{D}^{+}{D}^{-}$ cross sections at center-of-mass energies from 4.190 to 4.946 GeV
• Colloquium: Hadron Production in Open-charm Meson Pair at $e^{+}{e}^{-}$ Collider
• $D_1(2420)$ and its interactions with a kaon: open charm states with strangeness
• Looking for a vector charmonium-like state $Y$ in $e^{+}{e}^{-}\to \bar{D}{D}_1(2420)+c.c.$