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腾讯网
1 个月
科学家首次观察到超罕见粒子衰变
9月25日消息,包括来自伯明翰大学和佛罗伦萨大学的研究人员在内的国际科学家团队首次观察到带电 kaon 衰变为π介子和中微子-反中微子对 (K+ → π+νṽ) 的超罕见现象。该研究的结果在五西格玛显着性水平上得到了证实,并表明了新物理学存在的可能性。
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