J. Gong

collaborators

2 papers

hep-ex2026

Search for a massless particle beyond the Standard Model in the $Ξ^{0} \to Λ + invisible$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +770

A search for a massless beyond-standard-model particle is performed in the decay $Ξ^{0} \to Λ + invisible$ using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with…

hep-ex2026

Precise measurement of the form factors in $D^{0} \to K^{} (892)^{-} ℓ^{+} I^½_{ℓ}$ and observation of $D^{0} \to K_{2}^{} (1430)^{-} ℓ^{+} I^½_{ℓ}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +680

We report a study of the semileptonic decays $D^{0} \to K ˉ^{0} I ¨ ^{-} ℓ^{+} I^½_{ℓ}$ (where $ℓ = e, I^¼$ ) based on a sample of $20.3 fb^{- 1}$ of $e^{+} e^{-}$ annihilati…

Search for a massless particle beyond the Standard Model in the Ξ0→Λ+invisible decay

Precise measurement of the form factors in D0→K∗(892)−ℓ+I^½ℓ​ and observation of D0→K2∗​(1430)−ℓ+I^½ℓ​

Search for a massless particle beyond the Standard Model in the $Ξ^{0} \to Λ + invisible$ decay

Precise measurement of the form factors in $D^{0} \to K^{} (892)^{-} ℓ^{+} I^½_{ℓ}$ and observation of $D^{0} \to K_{2}^{} (1430)^{-} ℓ^{+} I^½_{ℓ}$