【北京，中国】4月19日——中国科学院高能物理研究所(简称“高能所”)今日宣布，北京谱仪Ⅲ实验在正负电子对撞研究中取得重大突破，发现了一种可能为质子-反质子束缚态的新粒子X(1880)。这一发现为物理学界提供了质子与反质子相互作用的新证据，对理解基本粒子间的强相互作用有深远影响。
据高能所介绍，这个新发现的共振结构X(1880)的质量为1882兆电子伏特(MeV)，这是在对北京正负电子对撞机产生的数据进行深度分析后得出的结果。作为中国领先的粒子物理研究平台，北京谱仪Ⅲ实验在探索宇宙基本粒子性质和相互作用方面扮演着关键角色。
质子-反质子束缚态的可能存在，挑战了现有的粒子物理理论，因为质子和反质子之间存在强烈的相互作用，理论上不容易形成稳定的束缚。这一新发现可能促使科学家重新评估质子与反质子如何相互作用，以及在宇宙早期，质子和反质子是否曾以类似的方式结合。
高能所的研究团队表示，这一成果将对今后的粒子物理实验和理论研究产生重要影响，为揭示宇宙中的基本粒子行为提供了新的线索。目前，科研人员正进一步分析数据，以确认这一现象的物理意义并探索其潜在的科学价值。
这一重大发现已经引起了国际粒子物理学界的广泛关注，有望开启对强相互作用领域的新一轮探索。高能所将持续推动科研创新，为人类理解宇宙的奥秘贡献力量。
英语如下：
**Breaking News! BEPCⅢ Unveils a Novel Proton-Antiproton Bound State: Discovery of the X(1880) Resonance**
Keywords: Proton-antiproton bound state, BEPCⅢ, New evidence found
**Beijing, China – April 19** – The High Energy Physics Institute of the Chinese Academy of Sciences (hereinafter referred to as “HEP Institute”) announced today that the Beijing Electron Positron Collider III (BEPCⅢ) experiment has made a groundbreaking discovery in positron-electron collision studies, identifying a new particle, X(1880), which could be a proton-antiproton bound state. This finding provides fresh evidence for the interaction between protons and antiprotons, with profound implications for understanding strong interactions among elementary particles.
According to HEP Institute, the newly discovered resonance structure X(1880) has a mass of 1882 Megaelectronvolts (MeV). This was deduced from a thorough analysis of data generated by the Beijing Electron Positron Collider. As China’s premier platform for particle physics research, BEPCⅢ plays a crucial role in unraveling the properties and interactions of fundamental particles.
The possible existence of a proton-antiproton bound state challenges the current understanding of particle physics, as the strong interaction between protons and antiprotons theoretically makes it不易形成稳定的束缚. This new discovery may prompt scientists to reevaluate how protons and antiprotons interact and whether such combinations occurred in the early universe.
The HEP Institute’s research team asserts that this achievement will significantly impact future particle physics experiments and theoretical studies, offering new insights into the behavior of fundamental particles in the universe. Researchers are currently delving deeper into the data to confirm the physical significance of this phenomenon and explore its potential scientific value.
This major breakthrough has attracted widespread attention from the international particle physics community and is expected to ignite a new wave of exploration in the domain of strong interactions. The HEP Institute will continue to drive scientific innovation, contributing to the human endeavor of unraveling the mysteries of the cosmos.
【来源】http://www.chinanews.com/gn/2024/04-19/10202175.shtml
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