REVIEW 3 cited by
Tetraquarks in the 1/N Expansion: a New Appraisal
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
read the original abstract
We discuss the necessary, albeit not sufficient, conditions for tetraquark poles to occur in the 1/N expansion of QCD and find the minimum order at which such poles may appear. Assuming tetraquark poles, we find a new non-planar solution with the minimal number of topologies and tetraquark species. The solution implies narrow states. Mixing with quarkonium states is allowed so that P-wave tetraquarks with J^PC=1^-- would couple to e^+e^-.
Forward citations
Cited by 3 Pith papers
-
Cluster reducibility of multiquark operators
Gauge-invariant multiquark operators decompose into products of ordinary hadronic operators, which rules out fully compact multiquark bound states.
-
Flavour-Exotic Tetraquarks in Large-$N_{\rm c}$ QCD: Do They Exist?
Large-Nc QCD requires two flavour-exotic tetraquark states, but only one compact diquark-antidiquark configuration exists, so compact flavour-exotic tetraquarks likely do not exist.
-
Tetraquark-Adequate QCD Sum Rules
QCD sum rules for tetraquarks should exclude unconnected meson-meson contributions; the corrected rules retain only diagrams of order alpha_s^2 or higher.
Discussion (0). Continue with ORCID to comment.