The study investigates CP symmetry violation in the decay of D^{+} particles into K^{-}K^{+}π^{+} using data from proton-proton collisions at a high energy of 13 TeV.
A unique model-independent method was employed to analyze the phase-space distributions of D^{+} and D^{-} particles, correcting for any instrumental biases using D_{s}^{+} decays.
The findings indicate no significant evidence of CP violation, with a p value of 8.1%, and measure specific CP asymmetry observables, marking this study as the most sensitive search of its kind in multibody decays.
The study investigates the processes e^{+}e^{-}→D_{s}^{+}D_{s1}(2536)^{-} and e^{+}e^{-}→D_{s}^{+}D_{s2}^{*}(2573)^{-} using data from the BESIII detector, focusing on a range of center-of-mass energies.
For the first time, the absolute branching fractions of the decay processes for D_{s1}(2536)^{-} and D_{s2}^{*}(2573)^{-} are measured, revealing values of 35.9% and 37.4% respectively.
The research identifies a resonant structure around 4.6 Ge
A study was conducted on B^{+} decays to explore resonant structures using data from the LHCb experiment at various energy levels, totaling an integrated luminosity of 9 fb^{-1}.
The researchers performed a simultaneous amplitude fit on two decay channels, determining the C parities of resonances in the D^{*±}D^{∓} mass spectra.
Four new charmonium or charmoniumlike states were discovered, including η_{c}(3945) and h_{c}(4000), and the presence of T_{c[over ¯]s[over ¯]0}^{*}(2870)^{0} and T_{c[over ¯]s
Scientists used special data from a detector to look for rare particle decays of a type called the D_{s}^{+} decay, focusing on how it might change into other particles like kaons or pions.
They found strong evidence for the decay D_{s}^{+}→π^{+}ϕ and also discovered a new decay D_{s}^{+}→ρ^{+}ϕ, both involving particles that decay into pairs of electrons.
However, they didn't find strong signals for three other types of decays they were looking for, and set limits on how often those changes could happen.