Zhen-Hua Zhang

activity

20242026

collaborators

4 papers

hep-ph2026

Neutrinoless double-beta decay of the $I^^{-}$ resonance

Li-Ping He, Feng-Kun Guo, Ulf-G. MeiÃner +3

The subprocess $nn \to pp e^{-} e^{-}$ is a key ingredient in the interpretation of nuclear neutrinoless double-beta decay. Intermediate $I^$ resonances may provide additional enhancement…

hep-ph2025

Classification of Coupled-Channel Near-Threshold Structures

Zhen-Hua Zhang, Feng-Kun Guo

Since 2003, plenty of resonant structures have been observed in the heavy quarkonium regime. Many of them are close to the thresholds of a few pairs of heavy hadrons. They are cand…

hep-ph2024

Dispersive analysis of the isospin breaking in the $X (3872) \to J / I ¨ I ¨ ^{+} I ¨ ^{-}$ and $X (3872) \to J / I ¨ I ¨ ^{+} I ¨ ^{0} I ¨ ^{-}$ decays

Jorgivan Morais Dias, Teng Ji, Xiang-Kun Dong +5

We analyze the latest LHCb data on the $I ¨ ^{+} I ¨ ^{-}$ spectrum in the isospin-violating $X (3872) \to J / I ¨ I ¨ ^{+} I ¨ ^{-}$ decay, based on dispersion theory to deal with the $I ¨ I ¨ $ final state…

hep-ph2024

Predicting isovector charmonium-like states from X(3872) properties

Zhen-Hua Zhang, Teng Ji, Xiang-Kun Dong +4

Using chiral effective field theory, we predict that there must be isovector charmonium-like $D D ˉ^{*}$ hadronic molecules with $J^{P C} = 1^{++}$ denoted as $W_{c 1}$ . The inputs are…

Neutrinoless double-beta decay of the I^− resonance

Classification of Coupled-Channel Near-Threshold Structures

Dispersive analysis of the isospin breaking in the X(3872) → J/I¨I¨+I¨− and X(3872) → J/I¨I¨+I¨0I¨− decays

Predicting isovector charmonium-like states from X(3872) properties

Neutrinoless double-beta decay of the $I^^{-}$ resonance

Dispersive analysis of the isospin breaking in the $X (3872) \to J / I ¨ I ¨ ^{+} I ¨ ^{-}$ and $X (3872) \to J / I ¨ I ¨ ^{+} I ¨ ^{0} I ¨ ^{-}$ decays