問題詳情
25. n → p++ e-+ γ 的衰變不可能發生，這是因為此衰變違反了下列何種原理？
(A)動量守恆
(B)角動量守恆
(C)重子數守恆
(D)輕子數守恆
(A)動量守恆
(B)角動量守恆
(C)重子數守恆
(D)輕子數守恆
參考答案
答案：D
難度：非常困難0
統計：A(2),B(0),C(1),D(0),E(0)
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