XXVI DAE-BRNS High Energy Physics Symposium 2024

Study of Inclusive Decay D¯0→KSX in Belle and Belle II Experiments

Not scheduled

20m

Swatantrata Bhavan, Banaras Hindu University, Varanasi

Oral Quark and lepton flavour physics

Speaker

Mr Neetesh Mudgal

Description

Study of Inclusive Decay ${\overline{D}}^0\to K_{S}X$

       Neetesh Mudgal (Belle II Collaboration)
INDIAN INSTITUTE OF SCIENCE EDUCATION AND RESEARCH
            (IISER) MOHALI, INDIA

We investigate the inclusive decay mode ${\overline{D}}^0\to K_{S}X$, where $X$ represents any particle that satisfies the decay condition. Within the Belle collaboration, we utilize the $\mathrm{{\rm Y}}(4S)$ resonance to produce $B^{+}{B}^{-}$ pairs. Following hadron $B$-tagging, the $B^{-}$ is reconstructed using the FEI algorithm, with the $B^{+}$ serving as the signal side. On the signal side, we identify the decay $B^{+}\to {\overline{D}}^0{\pi }^{+}$. Subsequently, the number of $K_S$ mesons in the ${\overline{D}}^0$ region is determined using the sPlot technique.

We present preliminary results from a Monte Carlo (MC) study focused on the signal and background of this decay mode, as well as on extracting the branching fraction for ${\overline{D}}^0\to K_{S}X$.

Keywords: Inclusive decay, FEI algorithm, sPlot, Monte Carlo, branching fraction

Presentation materials

QLF_9.pdf