本题目来源于试卷: Physics Unit32: Elementary Particles，类别为 通用国际物理
[单选题]
Suppose you were to try *j+t zt )4g;5ivpowzltc- efoe(/8wa xo create a proton-antiproton pair by annihilation of a very high energy photon. The proton and the anti-proton have the same masses, but opposite charga(/o8f xw-ee ces. What energy photon would be required?
A. $1.022 \; MeV$
B. $1880 \; MeV$
C. $940 \; MeV$
D. $223 \; MeV$
参考答案: B
本题详细解析:
暂无
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