F. Hanisch

activity

20242026

collaborators

17 papers

hep-ex2026

Search for the electromagnetic Dalitz decays $I ¨ _{c J} \to e^{+} e^{-} I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Using a data sample of $(2.712 \pm 0.014) \times 1 0^{9}$ $I ¨ (3686)$ events collected at $s = 3.686$ GeV by the BESIII detector, we search for the rare electromagnetic Dalitz dec…

hep-ex2026

Study of $I^\cdot \to I ¨ ^{+} I ¨ ^{-} l^{+} l^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +639

Using a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events accumulated with the BESIII detector, we analyze the decays $I^\cdot \to I ¨ ^{+} I ¨ ^{-} l^{+} l^{-}$ ( $l = e$ or $I^¼$ ) via the process…

hep-ex2025

A novel measurement of the strong-phase difference between $D^{0} \to K^{-} I ¨ ^{+}$ and $D ˉ^{0} \to K^{-} I ¨ ^{+}$ decays using $C$ -even and $C$ -odd quantum-correlated $D D ˉ$ pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +698

A novel measurement technique of strong-phase differences between the decay amplitudes of $D^{0}$ and $D ˉ^{0}$ mesons is introduced which exploits quantum-correlated $D D ˉ$ pa…

hep-ex2025

Cross section measurement of $e^{+} e^{-} \to I^\cdot I ¨ (2 S)$ and search for $e^{+} e^{-} \to I^\cdot X ~ (3872)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

The energy-dependent cross section for $e^{+} e^{-} \to I^\cdot I ¨ (2 S)$ is measured at eighteen center of mass energies from 4.288 GeV to 4.951 GeV using the BESIII detector. Using the same da…

hep-ex2025

Observation of $D^{+} \to I^\cdot^{'} I^¼^{+} I^½_{I^} ¼$ and First Study of $D^{+} \to I^\cdot^{'} ℓ^{+} I^½_{ℓ}$ Decay Dynamics

BESIII Collaboration, M. Ablikim, M. N. Achasov +648

Using $20.3 f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at the center-of-mass energy 3.773\,GeV with the BESIII detector, we report the first observation of the semileptonic…

hep-ex2025

Measurement of the branching fractions of $D^{+} \to K^{+} K^{-} I ¨ ^{+} I ¨ ^{+} I ¨ ^{-}$ , $I ¨ I ¨ ^{+} I ¨ ^{+} I ¨ ^{-}$ , $K_{S}^{0} K^{+} I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ , $K_{S}^{0} K^{+} I^\cdot$ , and $K_{S}^{0} K^{+} I ¨ $ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +686

Using $20.3 fb^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector operating at the BEPCII collider, the branching…

Search for the electromagnetic Dalitz decays I¨cJ​→e+e−I¨

Study of I^⋅→I¨+I¨−l+l−

A novel measurement of the strong-phase difference between D0→K−I¨+ and Dˉ0→K−I¨+ decays using C-even and C-odd quantum-correlated DDˉ pairs

Cross section measurement of e+e−→I^⋅I¨(2S) and search for e+e−→I^⋅X~(3872)

Observation of D+→I^⋅′I^¼+I^½I^​¼ and First Study of D+→I^⋅′ℓ+I^½ℓ​ Decay Dynamics

Measurement of the branching fractions of D+→K+K−I¨+I¨+I¨−, I¨I¨+I¨+I¨−, KS0​K+I¨+I¨−I¨0, KS0​K+I^⋅, and KS0​K+I¨ decays

Search for the electromagnetic Dalitz decays $I ¨ _{c J} \to e^{+} e^{-} I ¨ $

Study of $I^\cdot \to I ¨ ^{+} I ¨ ^{-} l^{+} l^{-}$

A novel measurement of the strong-phase difference between $D^{0} \to K^{-} I ¨ ^{+}$ and $D ˉ^{0} \to K^{-} I ¨ ^{+}$ decays using $C$ -even and $C$ -odd quantum-correlated $D D ˉ$ pairs

Cross section measurement of $e^{+} e^{-} \to I^\cdot I ¨ (2 S)$ and search for $e^{+} e^{-} \to I^\cdot X ~ (3872)$

Observation of $D^{+} \to I^\cdot^{'} I^¼^{+} I^½_{I^} ¼$ and First Study of $D^{+} \to I^\cdot^{'} ℓ^{+} I^½_{ℓ}$ Decay Dynamics

Measurement of the branching fractions of $D^{+} \to K^{+} K^{-} I ¨ ^{+} I ¨ ^{+} I ¨ ^{-}$ , $I ¨ I ¨ ^{+} I ¨ ^{+} I ¨ ^{-}$ , $K_{S}^{0} K^{+} I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ , $K_{S}^{0} K^{+} I^\cdot$ , and $K_{S}^{0} K^{+} I ¨ $ decays