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Belle and Belle II experiments gathered around 1.5 ab \(^{-1}\) of dataset near \(\Upsilon (nS)\) resonances, which have constrained kinematics and low multiplicity suitable for dark sector searches. Both experiments have excellent sensitivity for dark sector searches in the few MeV–10 GeV range. The latest dark sector searches performed by both collaborations, which constrain a variety of dark mediators, are discussed.

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Searches for Dark Sector Particles at Belle and Belle II

  • 会议论文

  • 发表日期：

    2025年

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  • Rajesh Kumar Maiti

摘要

Belle and Belle II experiments gathered around 1.5 ab \(^{-1}\) of dataset near \(\Upsilon (nS)\) resonances, which have constrained kinematics and low multiplicity suitable for dark sector searches. Both experiments have excellent sensitivity for dark sector searches in the few MeV–10 GeV range. The latest dark sector searches performed by both collaborations, which constrain a variety of dark mediators, are discussed.