1. The existence of antibaryons has been confirmed by experiments in particle physics.
（通过粒子物理实验已经证实反重子的存在。）
2. Scientists are studying the properties and interactions of antibaryons in order to gain a better understanding of fundamental particles.
（科学家们正在研究反重子的性质和相互作用，以便更好地理解基本粒子。）