Niu Su

activity

20202026

most cited

X_{0} (2900)

and

X_{1} (2900)

: hadronic molecules or compact tetraquarks

80 citations · 206 across the 16 of their papers we have counts for

collaborators

Showing hep-phShow all

18 papers · 1 filter

hep-ph2026

Relative $P$ -wave excitations of $D^{()} D ˉ^{()}$ configurations in QCD sum rules

Yi-Wei Jiang, Hua-Xing Chen, Er-Liang Cui +2

We investigate the relative $P$ -wave excitations of the $D^{(*)} D ˉ^{(*)}$ systems using the QCD sum rule method. By introducing a covariant derivative between two ground-state…

hep-ph2026

Light tetraquark states with $J^{P C} = 1^{--}$ from QCD sum rules

Yi-Wei Jiang, Hua-Xing Chen, Er-Liang Cui +3

We perform a systematic QCD sum rule study of light tetraquark states with $J^{P C} = 1^{--}$ in the diquark--antidiquark picture. A complete set of local interpolating currents is co…

hep-ph2025

A short review on QCD sum rule studies of P-wave single heavy baryons

Xuan Luo, Shu-Wei Zhang, Hua-Xing Chen +3

Over the past few decades, the study of singly heavy baryons has entered a golden era, with numerous excited states observed by experimental collaborations. Various theoretical app…

hep-ph2025

Improved prediction of the mass splitting for $P$ -wave $Ω$ baryons

Niu Su, Hua-Xing Chen, Philipp Gubler +1

Using the QCD sum rule method, we investigate the mass splitting for the spin-orbit partner states of the $Ω (2012)$ baryon assuming that it is a $P$ -wave excitation with $J^P=3/2^-…

hep-ph2025

A hybrid nonet with $J^{P C} = 1^{-+}$ or a tetraquark 81-plet

Niu Su, Er-Liang Cui, Yi-Wei Jiang +1

Confirming the existence of hybrid states remains challenging due to their experimental indistinguishability from tightly bound tetraquarks and loosely bound molecules. To address…

hep-ph2024

Investigation on the $Ω (2012)$ from QCD sum rules

Niu Su, Hua-Xing Chen, Philipp Gubler +1

We investigate the recently observed $Ω (2012)$ baryon using QCD sum rules. By constructing $P$ -wave $Ω$ baryon currents and performing spin projection and parity projection, we obt…

hep-ph2024

Investigation on the $Ω (2012)$ from QCD sum rules

Niu Su, Hua-Xing Chen, Philipp Gubler +1

We study the recently observed $Ω (2012)$ baryon in QCD sum rules. We construct the $P$ -wave $Ω$ baryon currents with a covariant derivative, and perform spin projection to obtain t…

hep-ph2024

Light single-gluon hybrid states with various (exotic) quantum numbers

Wei-Han Tan, Niu Su, Hua-Xing Chen

We apply the QCD sum rule method to study the light single-gluon hybrid states with various (exotic) quantum numbers. We construct twenty-four single-gluon hybrid currents, and use…

hep-ph2023★ 3 cited

Double-gluon charmonium hybrid states with various (exotic) quantum numbers

Niu Su, Hua-Xing Chen, Wei Chen +1

We study the double-gluon charmonium hybrid states with various quantum numbers, each of which is composed of one valence charm quark and one valence charm antiquark as well as two…

hep-ph2023★ 8 cited

Fully-strange tetraquark states with the exotic quantum numbers $J^{P C} = 0^{+-}$ and $2^{+-}$

Hong-Zhou Xi, Yi-Wei Jiang, Hua-Xing Chen +2

We study the fully-strange tetraquark states with the exotic quantum numbers $J^{P C} = 0^{+-}$ and $2^{+-}$ . We construct their corresponding diquark-antidiquark interpolating curr…

hep-ph2023★ 7 cited

Light double-gluon hybrid states with the exotic quantum numbers $J^{P C} = 1^{-+}$ and $3^{-+}$

Niu Su, Wei-Han Tan, Hua-Xing Chen +2

We apply the QCD sum rule method to study the double-gluon hybrid states with the quark-gluon contents $q ˉ q g g$ ( $q = u / d$ ) and $s ˉ s g g$ . We construct twenty-eight double-g…

hep-ph2022★ 11 cited

Light double-gluon hybrid states from QCD sum rules

Niu Su, Hua-Xing Chen, Wei Chen +1

We study the double-gluon hybrid states with the quark-gluon contents $q ˉ q g g$ ( $q = u / d$ ) and $s ˉ s g g$ . We construct twelve double-gluon hybrid currents with various quant…

hep-ph2022★ 10 cited

Highly excited and exotic fully-strange tetraquark states

Rui-Rui Dong, Niu Su, Hua-Xing Chen

Some hadrons have the exotic quantum numbers that the traditional $q ˉ q$ mesons and $q q q$ baryons can not reach, such as $J^{P C} = 0^{--} / 0^{+-} / 1^{-+} / 2^{+-} / 3^{-+} / 4^{+-}$ , e…

hep-ph2022★ 34 cited

$S$ - and $P$ -wave fully-strange tetraquark states from QCD sum rules

Niu Su, Hua-Xing Chen

We apply the QCD sum rule method to systematically study the $S$ - and $P$ -wave fully-strange tetraquark states within the diquark-antidiquark picture. We systematically construct t…

hep-ph2022★ 33 cited

QCD axial anomaly enhances the $η η^{'}$ decay of the hybrid candidate $η_{1} (1855)$

Hua-Xing Chen, Niu Su, Shi-Lin Zhu

We study the hybrid mesons with the exotic quantum number $I^{G} J^{P C} = 0^{+} 1^{-+}$ and investigate their decays into the $η η^{'}$ , $a_{1} (1260) π$ , $f_{1} (1285) η$ , $f_{1} (1420) η$ , $K…

hep-ph2020★ 3 cited

Light tetraquark states with the exotic quantum number $J^{P C} = 3^{-+}$

Niu Su, Rui-Rui Dong, Hua-Xing Chen +2

We apply the method of QCD sum rules to study the $s q s ˉ q ˉ$ tetraquark states with the exotic quantum number $J^{P C} = 3^{-+}$ , and extract mass of the lowest-lying state…

hep-ph2020★ 80 cited

$X_{0} (2900)$ and $X_{1} (2900)$ : hadronic molecules or compact tetraquarks

Hua-Xing Chen, Wei Chen, Rui-Rui Dong +1

Very recently the LHCb Collaboration reported their observation of the first two fully open-flavor tetraquark states, the $X_{0} (2900)$ of $J^{P} = 0^{+}$ and the $X_{1} (2900)$ of $J^P = 1…

hep-ph2020★ 17 cited

QCD sum rule studies on the $ss s ˉ s ˉ$ tetraquark states of $J^{P C} = 0^{-+}$

Rui-Rui Dong, Niu Su, Hua-Xing Chen +2

We apply the method of QCD sum rules to study the $ss s ˉ s ˉ$ tetraquark states of $J^{P C} = 0^{-+}$ . We construct all the relevant $ss s ˉ s ˉ$ tetraquark currents,…

Relative P-wave excitations of D(∗)Dˉ(∗) configurations in QCD sum rules

Light tetraquark states with JPC=1−− from QCD sum rules

A short review on QCD sum rule studies of P-wave single heavy baryons

Improved prediction of the mass splitting for P-wave Ω baryons

A hybrid nonet with JPC=1−+ or a tetraquark 81-plet

Investigation on the Ω(2012) from QCD sum rules

Investigation on the Ω(2012) from QCD sum rules

Light single-gluon hybrid states with various (exotic) quantum numbers

Double-gluon charmonium hybrid states with various (exotic) quantum numbers

Fully-strange tetraquark states with the exotic quantum numbers JPC=0+− and 2+−

Light double-gluon hybrid states with the exotic quantum numbers JPC=1−+ and 3−+

Light double-gluon hybrid states from QCD sum rules

Highly excited and exotic fully-strange tetraquark states

S- and P-wave fully-strange tetraquark states from QCD sum rules

QCD axial anomaly enhances the ηη′ decay of the hybrid candidate η1​(1855)

Light tetraquark states with the exotic quantum number JPC=3−+

X0​(2900) and X1​(2900): hadronic molecules or compact tetraquarks

QCD sum rule studies on the sssˉsˉ tetraquark states of JPC=0−+

Relative $P$ -wave excitations of $D^{()} D ˉ^{()}$ configurations in QCD sum rules

Light tetraquark states with $J^{P C} = 1^{--}$ from QCD sum rules

Improved prediction of the mass splitting for $P$ -wave $Ω$ baryons

A hybrid nonet with $J^{P C} = 1^{-+}$ or a tetraquark 81-plet

Investigation on the $Ω (2012)$ from QCD sum rules

Investigation on the $Ω (2012)$ from QCD sum rules

Fully-strange tetraquark states with the exotic quantum numbers $J^{P C} = 0^{+-}$ and $2^{+-}$

Light double-gluon hybrid states with the exotic quantum numbers $J^{P C} = 1^{-+}$ and $3^{-+}$

$S$ - and $P$ -wave fully-strange tetraquark states from QCD sum rules

QCD axial anomaly enhances the $η η^{'}$ decay of the hybrid candidate $η_{1} (1855)$

Light tetraquark states with the exotic quantum number $J^{P C} = 3^{-+}$

$X_{0} (2900)$ and $X_{1} (2900)$ : hadronic molecules or compact tetraquarks

QCD sum rule studies on the $ss s ˉ s ˉ$ tetraquark states of $J^{P C} = 0^{-+}$