Simulating the charged charmoniumlike structure $Z_c(4025)$

Abstract

Inspired by recent observation of charged charmoniumlike structure $Z_c(4025)$, we explore the $Y(4260)\to (D^{\ast }{\bar{D}}^{\ast }{)}^{-}{\pi }^{+}$ decay through the initial-single-pion-emission mechanism, where the $D^{\ast }{\bar{D}}^{\ast }\to D^{\ast }{\bar{D}}^{\ast }$ interaction is studied by the ladder approximation including a non-interacting case. Our calculation of the differential decay width for $Y(4260)\to (D^{\ast }{\bar{D}}^{\ast }{)}^{-}{\pi }^{+}$ indicates that a charged enhancement structure around $D^{\ast }{\bar{D}}^{\ast }$ appears in the $D^{\ast }{\bar{D}}^{\ast }$ invariant mass spectrum for this process, which can correspond to newly observed $Z_c(4025)$ structure.

5 pages, 4 figures. Title changed and more discussed added. Accepted by Eur. Phys. J. C

References in corpus (1)

• Rescattering Effect and Near Threshold Enhancement of $p\bar{p}$ System

Cited by in corpus (8)

• Reanalysis of the $Y(3940)$, $Y(4140)$, $Z_c(4020)$, $Z_c(4025)$ and $Z_b(10650)$ as molecular states with QCD sum rules
• Analysis of the $Z_c(4020)$, $Z_c(4025)$, $Y(4360)$ and $Y(4660)$ as vector tetraquark states with QCD sum rules
• Observation of a neutral charmoniumlike state $Z_c(4025{)}^0$ in $e^{+}{e}^{-}\to (D^{\ast }{\bar{D}}^{\ast }{)}^0{\pi }^0$
• Mass spectra of Zc and Zb exotic states as hadron molecules
• Distinguishing cusp effects and near-threshold-pole effects
• The possibility of $X(4014)$ as a $D^{\ast }{\bar{D}}^{\ast }$ molecular state
• Production of $Z_{cs}$ in $B$ and $B_s$ decay
• Charged charmonium-like structures and the initial single chiral particle emission mechanism