Abstract
A coupled channel analysis of the D⁎+D0 and D⁎0D+ system is performed to study the doubly charmed Tcc+ state recently discovered by the LHCb collaboration. We use a simple model for the scattering amplitude and production mechanism that allows us to describe well the experimental spectrum, and obtain the Tcc+ pole in the coupled channel T-matrix. We find that this bound state has a large molecular component. The isospin (I=0 or I=1) of the state cannot be inferred from the D0D0π+ spectrum alone, although there is some experimental evidence that points to the I=0 interpretation. Therefore, we use the same formalism to predict other DDπ spectra. In the case the Tcc+ has I=1, we also predict the location of the other two members (Tcc++ and Tcc0) of the triplet. Finally, using Heavy-Quark Spin Symmetry, we predict the location of possible heavier D⁎D⁎ (I=0 or I=1) partners.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
