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Home > European Physical Journal C (Springer/SIF) > Simulating the charged charmoniumlike structure <math><mrow><msub><mi>Z</mi><mi>c</mi></msub><mrow><mo stretchy="false">(</mo><mn>4025</mn><mo stretchy="false">)</mo></mrow></mrow></math> |

Wang, Xiao (Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, 730000, Lanzhou , China) (School of Physical Science and Technology, Lanzhou University, 730000, Lanzhou , China) ; Sun, Yuan (Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, 730000, Lanzhou , China) (School of Physical Science and Technology, Lanzhou University, 730000, Lanzhou , China) ; Chen, Dian-Yong (Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, 730000, Lanzhou , China) (Nuclear Theory Group, Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou , China) ; Liu, Xiang (Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, 730000, Lanzhou , China) (School of Physical Science and Technology, Lanzhou University, 730000, Lanzhou , China) ; Matsuki, Takayuki (Tokyo Kasei University, 1-18-1 Kaga, 173-8602, Itabashi, Tokyo , Japan)

18 February 2014

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

**Published in: ****EPJC 74 (2014) 2761**
**Published by: **Springer/Società Italiana di Fisica

**DOI: **10.1140/epjc/s10052-014-2761-2

**License: **CC-BY-3.0