Q. Ji

collaborators

6 papers

hep-ex2025

First Measurement of the Decay Dynamics in the Semileptonic Transition of the $D^{+ (0)}$ into the Axial-vector Meson $K ˉ_{1} (1270)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +677

Using $e^{+} e^{-}$ data taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, corresponding to an integrated luminosity of 20.3 fb $^{- 1}$ , we report the first measu…

hep-ex2025

Study of the electromagnetic Dalitz decay $J / I ¨ \to e^{+} e^{-} I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

We report the first measurement of the di-electron invariant mass dependent transition form factor in the electromagnetic Dalitz decay $J / I ¨ \to e^{+} e^{-} I ¨ ^{0}$ using $(10087 \pm 44) \…

hep-ex2025

Search for $B^{0} \to K^{* 0} I ¨ ^{+} I ¨ ^{-}$ decays at the Belle II experiment

Belle II Collaboration, I. Adachi, K. Adamczyk +446

We present a search for the rare flavor-changing neutral-current decay $B^{0} \to K^{* 0} I ¨ ^{+} I ¨ ^{-}$ with data collected by the Belle II experiment at the SuperKEKB electron-posit…

hep-ex2025

Observation of the charmonium decay $I^\cdot_{c} \to I^^{3} I^^{3}$ in $J / I ¨ \to I^^{3} I^\cdot_{c}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +662

Using $(2712.4 \pm 14.3) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector at the BEPCII collider, the decay $I^\cdot_{c} \to I^^{3} I^^{3}$ in $J / I ¨ \to I^^{3} I^\cdot_{c}$ is observed. We determin…

hep-ex2025

Measurement of the branching fraction of $D_{s}^{+} \to ℓ^{+} I^½_{ℓ}$ via $e^{+} e^{-} \to D_{s}^{+} D_{s}^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

Based on $10.64 fb^{- 1}$ of $e^{+} e^{-}$ collision data taken at center-of-mass energies between 4.237 and 4.699 GeV with the BESIII detector, we study the leptonic $D_{s}^{+}$ de…

hep-ex2024

Measurement of $C P$ asymmetries in $B^{0} \to I^\cdot^{'} K_{s}^{0}$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +399

We describe a measurement of charge-parity ( $C P$ ) violation asymmetries in $B^{0} \to I^\cdot^{'} K_{S}^{0}$ decays using Belle II data. We consider $I^\cdot^{'} \to I^\cdot (\to I^^{3} I^^{3}) I ¨ ^{+} I ¨ ^{-}$ and $Î·'\toÏ(\toÏ^…

First Measurement of the Decay Dynamics in the Semileptonic Transition of the D+(0) into the Axial-vector Meson Kˉ1​(1270)

Study of the electromagnetic Dalitz decay J/I¨→e+e−I¨0

Search for B0→K∗0I¨+I¨− decays at the Belle II experiment

Observation of the charmonium decay I^⋅c​→I^3I^3 in J/I¨→I^3I^⋅c​

Measurement of the branching fraction of Ds+​→ℓ+I^½ℓ​ via e+e−→Ds∗+​Ds∗−​

Measurement of CP asymmetries in B0→I^⋅′Ks0​ decays at Belle II

First Measurement of the Decay Dynamics in the Semileptonic Transition of the $D^{+ (0)}$ into the Axial-vector Meson $K ˉ_{1} (1270)$

Study of the electromagnetic Dalitz decay $J / I ¨ \to e^{+} e^{-} I ¨ ^{0}$

Search for $B^{0} \to K^{* 0} I ¨ ^{+} I ¨ ^{-}$ decays at the Belle II experiment

Observation of the charmonium decay $I^\cdot_{c} \to I^^{3} I^^{3}$ in $J / I ¨ \to I^^{3} I^\cdot_{c}$

Measurement of the branching fraction of $D_{s}^{+} \to ℓ^{+} I^½_{ℓ}$ via $e^{+} e^{-} \to D_{s}^{+} D_{s}^{-}$

Measurement of $C P$ asymmetries in $B^{0} \to I^\cdot^{'} K_{s}^{0}$ decays at Belle II