F. Ma

collaborators

4 papers

hep-ex2026

Unexpected large relative strong phase and search for isospin breaking and $C P$ asymmetries in $J/Ï\to K^*(892)\bar K

BESIII Collaboration, M. Ablikim, M. N. Achasov +766

Using a direct scan of 26 energy points near the $J / I ¨ $ resonance, we perform the first measurement of the relative phase $I ¨ _{I^^{3}, 3 g}$ between the strong and electromagnetic ampli…

hep-ex2026

Updated measurement of the branching fraction of $D_{s}^{+} \to I ¨ ^{+} I^½_{I ¨} $

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Using a dataset of 7.33 fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data collected with the BESIII detector at center-of-mass energies from 4.128 to 4.226 GeV, we report an updated measure…

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…

Unexpected large relative strong phase and search for isospin breaking and CP asymmetries in $J/Ï\to K^*(892)\bar K

Updated measurement of the branching fraction of Ds+​→I¨+I^½I¨​

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​

Unexpected large relative strong phase and search for isospin breaking and $C P$ asymmetries in $J/Ï\to K^*(892)\bar K

Updated measurement of the branching fraction of $D_{s}^{+} \to I ¨ ^{+} I^½_{I ¨} $

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 $D^{0} \to K_{2}^{} (1430)^{-} ℓ^{+} I^½_{ℓ}$