Tcc+ decays: Differential spectra and two-body final states

Journal Article (Journal Article)

The recently discovered tetraquark, Tcc+, has quark content ccud and a mass that lies just below open charm thresholds. Hence it is reasonable to expect the state to have a significant molecular component. We calculate the decay of the Tcc+ in a molecular interpretation using effective field theory. In addition we calculate differential spectra as a function of the invariant mass of the final state charm meson pair. These are in good agreement with spectra measured by LHCb. We also point out that if shallow bound states of two pseudoscalar charm mesons exist, then two-body decays to those bound states and a single pion or photon can significantly enhance the width of the Tcc+.

Full Text

Duke Authors

Cited Authors

  • Fleming, S; Hodges, R; Mehen, T

Published Date

  • December 1, 2021

Published In

Volume / Issue

  • 104 / 11

Electronic International Standard Serial Number (EISSN)

  • 2470-0029

International Standard Serial Number (ISSN)

  • 2470-0010

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.104.116010

Citation Source

  • Scopus