C. H. Heinz

collaborators

3 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-ex2024

Study of excited $I^$ states in $I ¨ (3686) \to K^{-} I^ I^^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +599

Based on a sample of $(448.1 \pm 2.9) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector at BEPCII, the decays of $I ¨ (3686) \to K^{-} I^ I^^{+} + c . c .$ with $\o…

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

Study of excited I^ states in I¨(3686)→K−I^I^++c.c.

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 $J / I ¨ \to e^{+} e^{-} I ¨ ^{0}$

Study of excited $I^$ states in $I ¨ (3686) \to K^{-} I^ I^^{+} + c . c .$