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正电子发射
= 1.022 MeV的优势，因为终态少了一个电子而不是多了一个正电子。随着衰变的能量升高，分支系数（英语：Branching fraction）也会升高。然而，如果能量的差别小于2mec2，正电子发射将不能发生，此时只有电子俘获能进行。特定的同位素（例如鈹-7,7 Be
Τ子
1 (1): 1–25. （原始内容 (PDF)存档于2016-03-03）. J. Beringer; et al. Tau Branching Fraction (PDF). 2013 Review of Particle Physics. Particle Data Group. [Aug
regulation of protein tyrosine kinase activity · positive regulation of branching involved in ureteric bud morphogenesis · positive regulation of reactive
development · trachea morphogenesis · branching involved in salivary gland morphogenesis · bud outgrowth involved in lung branching · right lung development · left