相反的动量导致相反的方向
Opposite momenta lead to opposite directions
摘要：
当一个粒子衰变为两个碎片时，后者的波函数是半径膨胀的球壳。尽管有这种球对称性，这两个粒子只能在相反的方向上被探测到。
英文摘要：
When a particle decays into two fragments, the wavefunctions of the latter are spherical shells with expanding radii. In spite of this spherical symmetry, the two particles can be detected only in opposite directions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
