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arXiv 2009.01256hep-phhep-ex
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具有重子和轻子数的轻粒子

Light particles with baryon and lepton numbers

Julian Heeck

摘要:

我们考虑携带重子和轻子数的轻新粒子$χ$和$ϕ$。如果这些粒子比核子轻,它们会导致奇异的衰变,如$p\to π^+ χ$和$p\to e^+ϕ$,还没有完全被专门的搜索所限制。对于质量在GeV范围内的$χ$和$ϕ$,质子衰变在运动学上是被禁止的,但重子$\to$介子$+χ$、介子$\to$重子$+\barχ$和重子$\to$反轻子$+ϕ$的其他形式的衰变是允许的。这不仅为在Super-Kamiokande和DUNE等地下实验中寻找明显的重子数违反提供了可能性,而且也为在粲和B工厂中的重强子衰变提供了可能性。

英文摘要:

We consider light new particles $χ$ and $ϕ$ that carry baryon and lepton numbers. If these particles are lighter than nucleons they lead to exotic decays such as $p\to π^+ χ$ and $p\to e^+ϕ$, not yet fully constrained by dedicated searches. For $χ$ and $ϕ$ masses in the GeV range proton decays are kinematically forbidden but other decays of the forms baryon $\to$ meson$+χ$, meson $\to$ baryon$+\barχ$, and baryon $\to$ anti-lepton$+ϕ$ involving heavy initial hadrons are allowed. This opens up the possibility to search for apparent baryon number violation not just in underground experiments such as Super-Kamiokande and DUNE but also in decays of heavy hadrons in charm and B factories.

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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