English

The $Y(4230)$ as a $D_1 \bar{D}$ molecule

High Energy Physics - Phenomenology 2023-09-22 v1

Abstract

We show that the currently available data are consistent with Y(4230)Y(4230) being a D1DˉD_1 \bar{D} hadronic molecule. By a simultaneous fit to data from e+eD0Dπ+,J/ψπ+π,J/ψK+K,hcπ+π,J/ψη,χc0ω,χc1(3872)γe^+ e^- \rightarrow D^0 D^{* -} \pi^+,\: J/\psi \pi^+ \pi^-,\: J/\psi K^+ K^-,\: h_c \pi^+ \pi^-,\: J/\psi \eta,\: \chi_{c0} \omega,\: \chi_{c1}(3872) \gamma and μ+μ\mu^+ \mu^-, we demonstrate that this single state can explain the experimental signals in the mass range from 4.24.2 to 4.35GeV.4.35\, \rm{GeV}.

Keywords

Cite

@article{arxiv.2309.11970,
  title  = {The $Y(4230)$ as a $D_1 \bar{D}$ molecule},
  author = {Leon von Detten and Christoph Hanhart and Vadim Baru},
  journal= {arXiv preprint arXiv:2309.11970},
  year   = {2023}
}

Comments

The proceeding is submitted for the 17th International Workshop on Meson Physics Krakow, Poland 22nd - 27th June 2023