BEACH 2026: XVI International Conference on Beauty, Charm, Hyperons in Hadronic Interactions

Session

Charm

9 Jun 2026, 14:30

Firenze

Conveners

Charm

• Nicola Neri (Università degli Studi e INFN Milano (IT))

Charm

• Michele Veltri (Universita e INFN, Firenze (IT))

81. Charming clues to explain existence

Alexander Lenz (IPPP, Durham)

09/06/2026, 14:30

This talk emphasises the peculiarities of the charm system and we give a brief overview of some new theory results. 
In particular CP violating effects in the charm sector will be discussed.

8. Measurement of the relative phase between strong and EM decays

Yadi Wang

09/06/2026, 15:00

Talk

The strong and electromagnetic interactions are two main decay mechanisms in charmonium decays. The relative phase between them is a basic parameter in understanding the decay dynamics, especially for the precise measurements. In this talk, we present the direct measurement with resonance scan method. By introducing the EM amplitude from continuum decay, the interference between EM and strong...

62. Mixing and CPV in charm at LHCb

Mark Richard James Williams (The University of Edinburgh (GB))

09/06/2026, 15:20

Talk

LHCb has collected the world's largest sample of charmed-hadron decays. This sample is used to measure the $D^0 -\overline{D}^0$ mixing and to search for $C\!P$ violation in the mixing, helping to shed light on the compatibility of the observation of CP violation in $D^0 \to h^+ h^-$ decays. New measurements of several decay modes are presented, along with prospects for the sensitivity at the...

11. Measurements of |Vcd(s)|, decay constants, and form factors in (semi)-leptonic D decays at BESIII

Heng Ma (Hunan University (CN))

09/06/2026, 15:40

Talk

The BESIII experiment has collected 20.3 $fb^{-1}$ and 7.33 $fb^{-1}$ of e+e- collision data at center-of-mass energies of 3.773 GeV and 4.128-4.226 GeV, respectively.
This presentation will provide an overview of recent studies using (semi)-leptonic D decays at BESIII. We will present the first experimental investigation of $D_s^*+ \to l^+ \nu$ decays, along with improved measurements of...

15. Precision Measurements of Rare χcJ Decays at BESIII

Guangrui Liao

09/06/2026, 16:30

Talk

Utilizing the world's largest ψ(3686) data sample of 2.7 billions of D pairs collected at √s = 3.686 GeV, the BESIII experiment has performed a series of precision measurements on the decays of χcJ (J=0,1,2) states. New measurements of the branching fractions for $\chi_c^J \to 2K^+2K^−\omega$ and $\phi K^+ K^− \omega$ are reported, providing stringent tests of QCD models for multi-body...

14. Nonlocal QCD effects in $D^0-\bar D^0$ mixing.

Alexey Petrov (University of South Carolina)

09/06/2026, 16:52

Talk

The theoretical predictions for the $D^0-\bar D^0$ mixing parameters fall significantly short of experimental measurements, with discrepancies spanning several orders of magnitude. This divergence is largely attributed to the Glashow–Iliopoulos–Maiani (GIM) mechanism, which suppresses leading-order contributions. However, higher-order corrections and nonperturbative effects have the potential...

10. The hadronic decays of charmed mesons at BESIII

Xin Zeng

09/06/2026, 17:17

Talk

BESIII has collected 20.3 and 7.33 $fb^{-1}$ of e+e- collision data samples at 3.773 and 4.128-4.226 GeV. These constitute the world's largest samples of $D$ anti-$D$ and $D_s$ anti-$D_s$ pairs, respectively, providing a unique laboratory to probe the non-perturbative dynamics of Quantum Chromodynamics (QCD) in the charm sector.
We will present the measurement of branching fractions of...

57. CP violation in the decay of charmed hadrons at LHCb

Irene Celestino (SNS & INFN Pisa (IT))

09/06/2026, 17:39

Talk

The LHCb experiment published the first observation of CP violation in the decay of charmed particles in 2019, using the decay channels $D^0 \to \pi^+\pi^-$ and $D^0 \to K^+K^-$. Measurements of other decay channels are essential to understand whether this observation can be explained within the Standard Model, or if new sources of CP violation are needed. We present the latest measurements of...

70. The ALADDIN experiment at LHC

Gabriele Simi (Universita e INFN, Padova (IT))

09/06/2026, 18:01

Talk

ALADDIN (An LHC Apparatus for Direct Dipole moments INvestigation, https://aladdin.web.cern.ch/) is a proposed compact fixed-target experiment at the LHC, designed to enable precise measurements of charm baryon electromagnetic dipole moments. The experiment leverages an innovative storage-ring layout that redirects protons from the beam halo onto a solid target, coupled with a bent crystal....