本题目来源于试卷: Physics Unit32: Elementary Particles，类别为 Generic Physics
[单选题]
Suppose you were to try to create a proton-antiprotonb9aw48 n9fpdrrdyr+ gq4:ay- 1r3 rd y pair by annihilation ozgo;8 ;fvao 5xf a veov5;a8 of gz;xry high energy photon. The proton and the anti-proton have the 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
| 
Post time 2024-1-22 02:15:01