Publications by authors named "Q A Malik"
Article Synopsis
- During the COVID-19 pandemic, AI models were developed to help with health-care resource issues, but previous studies showed that the datasets used often have limitations leading to biased outcomes.
- A systematic review analyzed 192 healthcare datasets from MEDLINE and Google Dataset Search, focusing on metadata completeness, accessibility, and ethical considerations.
- Results indicated significant shortfalls, including that only 48% showed the country of origin, 43% reported age, and under 25% included demographic factors like sex or race, emphasizing the need for improved data quality and transparency to avoid bias in future AI health applications.
Strong and Weak CP Tests in Sequential Decays of Polarized Σ^{0} Hyperons.
Phys Rev Lett
September 2024
Article Synopsis
- The study investigates the J/ψ and ψ(3686) decays into Σ^{0}Σ[over ¯]^{0} processes using data from the BESIII detector, which has extensive datasets.
- It presents the first measurements of parity-violating decay parameters for Σ^{0} and Σ[over ¯]^{0}, suggesting implications for strong CP symmetry through their asymmetries.
- The findings include the observation of opposite transverse polarizations of Σ^{0} hyperons in these decays and the ratio of S-wave to D-wave contributions, contributing valuable insights into charmonium state dynamics.
Article Synopsis
- The Letter reports the most accurate measurement so far of the matter-antimatter imbalance during Pb-Pb collisions at a high energy level of 5.02 TeV.
- It utilizes the Statistical Hadronization framework to determine precise values for the electric charge and baryon chemical potentials, μ_{Q} and μ_{B}.
- The analysis of antiparticle-to-particle yield ratios shows that the collisions create a system that is generally baryon-free and electrically neutral at midrapidity.
Article Synopsis
- Data samples from the BESIII detector at the BEPCII collider were used to measure the Born cross sections for the e^{+}e^{-}→D^{0}D[over ¯]^{0} and D^{+}D^{-} processes with high precision.
- Observations revealed clear peaks in the line shapes corresponding to various mass ranges, including G(3900), ψ(4040), ψ(4160), Y(4260), and ψ(4415).
- These findings provide important experimental insights into the production of hadrons, particularly in the open-charm region.
The ALICE Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets recoiling from a high transverse momentum (high p_{T}) hadron trigger in proton-proton and central Pb-Pb collisions at sqrt[s_{NN}]=5.02 TeV. A data-driven statistical method is used to mitigate the large uncorrelated background in central Pb-Pb collisions.
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