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Belle II Document Server

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Search for B0 →etac gamma K+ pi- decay at Belle II (written in Japanese) / Ai Nishikawa ; Kenkichi Miyabayashi [BELLE2-MTHESIS-2021-018] Presented on 16 02 2021 MSc 2021 Nara Women's University / Nara 新粒子であるX(3872)粒子のC-oddパートナーやhc(2P)粒子をηc粒子とγ線への輻射崩壊で探索するため、その源となるB中間子の多体崩壊を調べた。事象形状変数群を用いたBDTなるアルゴリズムにより背景事象を約1/10に低減できること、有意な信号を得るには追加の背景事象を低減する工夫が必要であることを示した。 Fulltext: PDF; Detailed record - Similar records

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