本题目来源于试卷: Physics Unit32: Elementary Particles，类别为 国际高中通用物理
[单选题]
Suppose you were to try t1dtt ie4hxlig wwx5i+-s; i:6gp ( vy-o creaz1skq3,wrrowfo or o75 *il,)te a proton-antiproton pair by annihilation of a very high energy photon. The proton and the anti-proton have thewirl7so *of1zr )w 3rok,,5q o same masses, but opposite charges. 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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