Colour and baryon number fluctuation of preconfinement system in production process and T_cc structure

Abstract

We suggest to study the production mechanism and some details of the production properties to probe the structure of the DDpi resonance T_cc^+ recently observed by the LHCb Collaboration. If the resonance is produced as a four-quark state, one can find the corresponding finger prints via measurements on some production properties that are the same as those of Xi_cc. The reason is that a special colour connection on the interface between the perturbative and non perturbative QCD is required for these doubly-charm hadron production. On the other hand, if T_cc^+ is produced as a hadron molecule, the measurement on the momentum correlation of DD^* can be a smoking gun to make the judgement. The present data favour a compact four-quark state production via the cc diquark fragmentation.

20 papges, 6 figs

References in corpus (13)

• Pentaquark and Tetraquark states
• Discovery of doubly-charmed Xi_{cc} baryon implies a stable (b b ubar dbar) tetraquark
• Probing the long-range structure of the $T_{cc}^{+}$ with the strong and electromagnetic decays
• Discovery potentials of double-charm tetraquarks
• Double-heavy tetraquark states with heavy diquark-antiquark symmetry
• Doubly heavy tetraquarks in an extended chromomagnetic model
• Mass spectra of doubly heavy tetraquarks in an improved chromomagnetic interaction model
• Perfect $D{D}^{\ast }$ molecular prediction matching the $T_{cc}$ observation at LHCb
• Production of exotic tetraquarks $QQ\bar{q}\bar{q}$ in heavy-ion collisions at the LHC
• $D^0{D}^0{\pi }^{+}$ mass distribution in the production of the $T_{cc}$ exotic state
• Exotic hadron production in quark combination model
• Doubly Heavy Baryon Xi_cc Production in Upsilon (1S) Decay
• $D^{\ast }$ meson production in jet from combination of charm quark with light one

Cited by in corpus (24)

• An updated review of the new hadron states
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Coupled-channel approach to $T_{cc}^{+}$ including three-body effects
• $T_{cc}^{+}$ coupled channel analysis and predictions
• $T_{cc}^{+}$ and its partners
• The production of doubly charmed exotic hadrons in heavy ion collisions
• Prediction of new $T_{cc}$ states of $D^{\ast }{D}^{\ast }$ and $D_s^{\ast }{D}^{\ast }$ molecular nature
• Doubly heavy tetraquarks in a chiral-diquark picture
• Revisiting the $D{D}^{\ast }$ chiral interactions with the local momentum-space regularization up to the third order and the nature of $T_{cc}^{+}$
• Double-charm tetraquark under the complex scaling method
• Multiplicity of the doubly charmed state $T_{cc}^{+}$ in heavy-ion collisions
• Strong decays of $T_{cc}^{+}$ at NLO in an effective field theory
• Triangle Singularity in the Production of $T_{cc}^{+}$(3875) and a Soft Pion
• Masses and widths of the exotic molecular $B_{(s)}^{(\ast )}{B}_{(s)}^{(\ast )}$ states
• Interactions of the doubly charmed state $T_{cc}^{+}$ with a hadronic medium
• A note on the possible bound $D^{(\ast )}{D}^{(\ast )},{\bar{B}}^{(\ast )}{\bar{B}}^{(\ast )}$ and $D^{(\ast )}{\bar{B}}^{(\ast )}$ states
• Magnetic moments of the doubly charged axial-vector $T_{cc}^{++}$ states
• Masses and Magnetic Moments of Doubly Heavy Tetraquarks via Diffusion Monte Carlo Method
• Exploring the magnetic dipole moments of $T_{QQ\bar{q}\bar{s}}$ and $T_{QQ\bar{s}\bar{s}}$ states in the framework of QCD light-cone sum rules
• Doubly heavy tetraquark states in a mass splitting model
• Magnetic dipole moments of $B_{(s)}^{(\ast )}{B}_{(s)}^{(\ast )}$ states
• Isospin violation effect and three-body decays of the $T_{cc}^{+}$ state
• Hunting for the prospective $T_{cc}$ family based on the diquark-antidiquark configuration
• Production of hidden-heavy and double-heavy hadronic molecules at the $Z$ factory of CEPC