G. Dujany

Measurement of the Branching Fraction of $\Lambda_c^+ \to p K_S^0 \pi^0$ at Belle

L. Aggarwal, H. Ahmed, J. K. Ahn, H. Aihara et autres

We report a precise measurement of the ratio of branching fractions $\mathcal{B}(\Lambda_c^+\to p K_S^0 \pi^0)/\mathcal{B}(\Lambda_c^+\to p K^- \pi^+)$ using 980 fb$^{-1}$ of $e^+e^-$ data from the Belle experiment. We obtain a value of $\mathcal{B}(\Lambda_c^+\to p K_S^0 \pi^0)/\mathcal{B}(\Lambda_c^+\to p K^- \pi^+)=0.339\pm 0.002\pm 0.009$, …

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Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle II experiment*

I. Adachi, L. Aggarwal, H. Ahmed, J. K. Ahn et autres

Abstract A series of data samples was collected with the Belle II detector at the SuperKEKB collider from March 2019 to June 2022. We determine the integrated luminosities of these data samples using three distinct methodologies involving Bhabha ( ), digamma ( …

Determination of the CKM angle $ϕ_{3}$ from a combination of Belle and Belle II results

Belle, Belle Collaborations, H. Aihara, I. Adachi et autres

We report a determination of the CKM angle $ϕ_{3}$, also known as $γ$, from a combination of measurements using samples of up to 711~fb$^{-1}$ from the Belle experiment and up to 362~fb$^{-1}$ from the Belle II experiment. We combine results from analyses …

Measurement of the branching fraction of the $B^0 \to K_S^0 π^0 γ$ decay using 190 fb$^{-1}$ of Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk et autres

We report the measurement of the branching fraction of the $B^0 \to K_S^0 π^0 γ$ decay in $e^+ e^- \to Υ(4S) \to B \overline{B}$ data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy collider and corresponding to 190 fb$^{-1}$ of …