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Belle II provides an excellent environment to study missing energy modes. These studies need a full reconstruction of one of the two B mesons produced in the collision. Belle II has a dedicated algorithm called Full Event Interpretation(FEI) for reconstructing B meson. The FEI reconstruction suffers from significant data-MC discrepancy. To correct this, a calibration can be performed by measuring a well-known decay with sufficient statistics. Here, calibration factors are calculated to correct the efficiency of hadronic tag-sides using \(B\rightarrow X\pi (X= D, D^*)\) decays in 362 fb \(^{-1}\) of Belle II data.

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Hadronic FEI Calibration Studies with  \(B\rightarrow D^{(*)}\pi \) in Belle II

  • 会议论文

  • 发表日期：

    2025年

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  • Swarna Prabha Maharana

摘要

Belle II provides an excellent environment to study missing energy modes. These studies need a full reconstruction of one of the two B mesons produced in the collision. Belle II has a dedicated algorithm called Full Event Interpretation(FEI) for reconstructing B meson. The FEI reconstruction suffers from significant data-MC discrepancy. To correct this, a calibration can be performed by measuring a well-known decay with sufficient statistics. Here, calibration factors are calculated to correct the efficiency of hadronic tag-sides using \(B\rightarrow X\pi (X= D, D^*)\) decays in 362 fb \(^{-1}\) of Belle II data.