Mass spectra of doubly heavy tetraquarks in diquark-antidiquark picture

Duojie Jia; Yongxin Song

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Mass spectra of doubly heavy tetraquarks in diquark-antidiquark picture

YongXin Song, Duojie Jia

High Energy Physics - Phenomenology · Submitted 1 Jan 2023

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Our mass computation indicates that all low-lying states of doubly heavy tetraquarks are unstable against strong decays to two heavy-light mesons, except for the ground states of nonstrange $bb$ tetraquarks.

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Inspired by recent observation of the first doubly charmed tetraquark $T_{cc}$, we apply linear Regge relation and mass scaling to study low-lying mass spectra of the doubly heavy tetraquark in heavy-diquark-light-antidiquark picture. The measured data and other compatible estimates of ground-state masses of doubly heavy baryons are employed to evaluate masses of heavy diquark $M_{QQ}$ ($Q=c,b$) and the $D/D_{s}$ meson masses are used in mass scaling to determine the hyperfine mass splitting. Our mass computation indicates that all low-lying states of doubly heavy tetraquarks are unstable against strong decays to two heavy-light mesons, except for the ground states of nonstrange $bb$ tetraquarks.

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#	sentence	role	the authors' own work	states the main conclusion	strength
s0	Inspired by recent observation of the first doubly charmed tetraquark $T_{cc}$, we apply linear Regge relation and mass scaling to study low-lying mass spectra of the doubly heavy tetraquark in heavy-diquark-light-antidiquark picture.	contribution 0.93	0.80	0.05	asserted 0.85
s1	The measured data and other compatible estimates of ground-state masses of doubly heavy baryons are employed to evaluate masses of heavy diquark $M_{QQ}$ ($Q=c,b$) and the $D/D_{s}$ meson masses are used in mass scaling to determine the hyperfine mass splitting.	method 1.00	0.54	0.04	asserted 0.99
s2	Our mass computation indicates that all low-lying states of doubly heavy tetraquarks are unstable against strong decays to two heavy-light mesons, except for the ground states of nonstrange $bb$ tetraquarks.	result 0.99	0.94	0.87	hedged possibility 0.82

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The paper

Original abstract

Inspired by recent observation of the first doubly charmed tetraquark $T_{cc}$, we apply linear Regge relation and mass scaling to study low-lying mass spectra of the doubly heavy tetraquark in heavy-diquark-light-antidiquark picture. The measured data and other compatible estimates of ground-state masses of doubly heavy baryons are employed to evaluate masses of heavy diquark $M_{QQ}$ ($Q=c,b$) and the $D/D_{s}$ meson masses are used in mass scaling to determine the hyperfine mass splitting. Our mass computation indicates that all low-lying states of doubly heavy tetraquarks are unstable against strong decays to two heavy-light mesons, except for the ground states of nonstrange $bb$ tetraquarks.

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References

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Bottom-Charm $[bc]$ Diquark Masses from QCD Laplace Sum-Rules
hep-ph 2026-10 accept novelty 6.0 of 10

First NLO QCD sum-rule predictions for the constituent masses of bottom-charm diquarks in all four quantum-number channels.
Predicting $B^{(*)}\bar D{}^{(*)}$ states from a reanalysis of lattice QCD data
hep-ph 2026-10 conditional novelty 5.0 of 10

A reanalysis of lattice QCD data using heavy-quark spin and chiral symmetry yields shallow B D and B* D molecules and predicts new B* D* states with J^P=1+ and 2+.
Three ways to decipher the nature of exotic hadrons: multiplets, three-body hadronic molecules, and correlation functions
hep-ph 2024-04 conditional novelty 4.0 of 10

The paper argues that symmetry multiplets, three-body molecular states, and femtoscopy can together help identify which exotic hadrons are genuine hadronic molecules.

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8 arXiv papers cite this in 11 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 9 sentences without a confident label

Compares with it 1 paper

In Table [ref], our results for the DH tetraquark masses ($M$) are compared to other computations via the quark model [ref] , the chromomagnetic models [ref] and the QCD sum rules [ref] .

Doubly heavy tetraquarks: heavy quark bindings and chromomagnetically mixings · Masses of $T_cc$ and other DH tetraquarks · 1.00

Cites it as background 1 paper

In Refs. [ref] , the compact tetraquark picture for the $T_cc$ was investigated.

Three ways to decipher the nature of exotic hadrons: multiplets, three-body hadronic molecules, and correlation functions · $T_cc(3875)$ · 0.80

What it cites · 8 sentences without a confident label

Uses the method or tool of 4 papers

We use Regge relation methods in Refs. [ref] and earlier works [ref] , which is validated by many successful prediction of the excited heavy baryons [ref] , to analyze low-lying mass spectra of the DH tetraquark.

Low-lying doubly heavy baryons: Regge relation and mass scaling · Introduction · 1.00
We use Regge relation methods in Refs. [ref] and earlier works [ref] , which is validated by many successful prediction of the excited heavy baryons [ref] , to analyze low-lying mass spectra of the DH tetraquark.

Prospects for observing the lowest-lying odd-parity $\Sigma_c$ and $\Sigma_b$ baryons · Introduction · 1.00
We use Regge relation methods in Refs. [ref] and earlier works [ref] , which is validated by many successful prediction of the excited heavy baryons [ref] , to analyze low-lying mass spectra of the DH tetraquark.

Regge behaviors in orbitally excited spectroscopy of charmed and bottom baryons · Introduction · 1.00

Uses data or values from 5 papers

In the analysis, the measured data of the $Ξ_cc^++$ [ref] and other mass estimates of ground-state of doubly heavy baryons [ref] that is compatible with this data are used to extract masses of heavy diquark $M_QQ$ ($Q=c,b$) and other trajectory parameters [ref] .

Low-lying doubly heavy baryons: Regge relation and mass scaling · Introduction · 0.99
We assume, for simplicity, a power-law of the mass scaling for two string tensions of the doubly heavy tetraquark $(QQ)(u̅d̅)$ and $Λ_c, b$: [equation] [equation] Here, the relevant string tensions are evaluated previously in Ref [ref] , as listed in Table [ref].

Regge behaviors in orbitally excited spectroscopy of charmed and bottom baryons · Spin-Independent Mass · 0.90
These values was evaluated previously in Refs. [ref] via matching of the observed spectra of the singly-heavy hadrons.

A Mixing Coupling Scheme for Spectra of Singly Heavy Baryons with Spin-1 Diquarks in P-waves · Spin-Independent Mass · 0.95

Cites as background 1 paper

For recent review, see Refs. [ref] .

An updated review of the new hadron states · Introduction · 1.00

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