Covalent hadronic molecules induced by shared light quarks

Chen, Hua-Xing

doi:10.48550/arxiv.2105.09193

Cited by 3 publications

(5 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently in Ref. [417], the author improved the QCD sum rule method, and proposed a possible binding mechanism induced by the exchanged light quarks. This mechanism is similar to the covalent bond in the chemical molecules induced by the shared electrons.…”

Section: Open Heavy Flavor Multiquark Statesmentioning

confidence: 99%

See 1 more Smart Citation

An updated review of the new hadron states

Chen¹,

Chen²,

Liu³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

The past decades witnessed the golden era of hadron physics. Many excited open heavy flavor mesons and baryons have been observed since 2017. We shall provide an updated review of the recent experimental and theoretical progresses in this active field. Besides the conventional heavy hadrons, we shall also review the recently observed open heavy flavor tetraquark states X(2900) and T + cc (3875) as well as the hidden heavy flavor multiquark states X(6900), P cs (4459) 0 , Z cs (3985) − , Z cs (4000) + , and Z cs (4220) + . We will also cover the recent progresses on the glueballs and light hybrid mesons, which are the direct manifestations of the non-Abelian SU (3) gauge interaction of the Quantum Chromodynamics in the low-energy region.

show abstract

Section: Open Heavy Flavor Multiquark Statesmentioning

confidence: 99%

“…• In Ref. [417] the author systematically studied the D( * ) Σ The multiquark candidates are often located close to the thresholds of a pair of hadrons. As discussed in Sec.…”

Section: Open and Hidden Heavy Flavor Multiquark Candidatesmentioning

confidence: 99%

An updated review of the new hadron states

Chen¹,

Chen²,

Liu³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this paper we propose another possible binding mechanism between D and Σ c induced by the light-quark-exchange interaction [21]. As depicted in Fig.…”

Section: Introductionmentioning

confidence: 91%

“…We refer to Ref. [21] for detailed discussions, where the full expressions of Π DΣ c 0 (x) and Π DΣc Q (x) can also be found there. We assume X = | DΣ c to be the DΣ c hadronic molecule, whose mass is expanded as…”

Section: Qcd Sum Rule Studymentioning

confidence: 99%

Covalent hadronic molecules via QCD sum rules

Dong¹,

Chen²,

Su³

et al. 2022

Supl. Rev. Mex. Fis.

Self Cite

View full text Add to dashboard Cite

After carefully examining Feynman diagrams corresponding to the $\bar D \Sigma_c$ hadronic molecular state, we propose a possible binding mechanism induced by shared light quarks. We systematically study its corresponding light-quark-exchange interaction using the method of QCD sum rules, and the obtained results suggest that there can be the $\bar D \Sigma_c$ covalent molecule of $I=1/2$. Our QCD sum rule analyses further indicate a model-independent hypothesis: the light-quark-exchange interaction is attractive when the shared light quarks are totally antisymmetric so that obey the Pauli principle.

show abstract

“…In this paper we propose another possible Feynman diagram between D and Σ 𝑐 induced by the light-quark-exchange interaction [23], as depicted in the left panel of Fig. 1.…”

Section: Introductionmentioning

confidence: 99%