粒子物理學中,X荷X-charge,或 X )是一個與SO(10)英語SO(10) 大統一理論相關聯的守恆量子數

X 與「重子數 B輕子數 L 的差異」(亦即BL英語B − L)以及「弱超荷 YW」之關係可以用下式表示:

參見

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