arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2511.00599hep-ex
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在BESIII上寻找重子数/轻子数破坏过程

Search for Baryon/Lepton number violation processes at BESIII

Xudong Yu

AI总结:

为解释宇宙物质-反物质不对称性,BESIII实验在多种衰变通道中寻找重子数/轻子数破坏过程,包括通过$Λ-\arΛ$振荡寻找BNV,在$D_s^+$和$ω/ϕ$衰变中寻找LNV,以及探测同时破坏重子和轻子数的过程。

摘要:

宇宙中观测到的物质-反物质不对称性是对我们理解自然界的严峻挑战。为理解这一宏观观测事实,许多实验都在寻找重子数/轻子数破坏(BNV/LNV)衰变。我们展示了BESIII实验的最新结果,包括在$J/ψ\ o pK^-\arΛ$和$J/ψ\ oΛ\arΛ$衰变中通过$Λ-\arΛ$振荡寻找BNV。我们还展示了在$D_s^+\ o h^+h^0e^+e^-$和$ω/ϕ\ oπ^+π^-e^+e^-$衰变中寻找LNV,以及对同时破坏重子和轻子数的过程(如$Ξ^0\ o K^+e^-/K^-e^+$)的探测。

英文摘要:

The observed matter-antimatter asymmetry in the universe is a serious challenge to our understanding of nature. Baryon/lepton number violation (BNV/LNV) decays have been searched for in many experiments to understand this large-scale observed fact. We present the recent results from the BESIII experiment, including a search for BNV through $Λ-\barΛ$ oscillation in the decays $J/ψ\to pK^-\barΛ$ and $J/ψ\toΛ\barΛ$. We also present searches for LNV in $D_s^+\to h^+h^0e^+e^-$ and $ω/ϕ\toπ^+π^-e^+e^-$ decays, alongside probes into processes violating both baryon and lepton numbers simultaneously, such as $Ξ^0\to K^+e^-/K^-e^+$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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