Solidot: LHCb发现了标准模型没有预言到的新现象

Solidot

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LHCb发现了标准模型没有预言到的新现象
http://solidot.org.feedsportal.com/c/33236/f/556826/s/2f9bf067/l/0L0Ssolidot0Borg0Cstory0Dsid0F35889/story01.htm
Aug 6th 2013, 07:43

CERN粒子物理研究所LHCb探测器的数据分析发现，B介子以标准模型没有预言到的方式衰减。偏差测量可信度为4.5σ——接近确认发现的黄金标准5σ。LHCb观察到，一个B介子衰减成一个K介子和两个μ介子 ：B →  K*μ+μ–。这是一种相对罕见的衰减，研究人员相信标准模型没有预测到这一衰减结果。分析显示偏差非随机而是表现出一种相干模式。研究人员认为一种可能的解释是存在一种新的玻色子。类似Z玻色子但更重。论文发表在预印本网站arXiv上。This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends: 'You Say What You Like, Because They Like What You Say' - http://www.medialens.org/index.php/alerts/alert-archive/alerts-2013/731-you-say-what-you-like-because-they-like-what-you-say.html



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