<story><title>CERN experiment discovers five new particles</title><url>http://www.stfc.ac.uk/news/cern-experiment-discovers-not-one-but-five-new-particles/</url></story><parent_chain></parent_chain><comment><author>dkural</author><text>Just to give a bit more context:&lt;p&gt;* These are not elementary particles.
* It was predicted for a long time that these composite particles should exist. So it is not &amp;quot;new&amp;quot; in the sense that it was unexpected, but we finally have the resolution (energy, luminosity etc.) to detect these with statistical significance.
* These belong to the same class as protons and neutrons - these are hadrons made with multiple quarks.&lt;p&gt;Here&amp;#x27;s a super simple overview of Quantum Field Theory &amp;amp; Particle Physics:&lt;p&gt;Everything is made of force fields and matter fields.&lt;p&gt;* We discovered that force fields (i.e. electromagnetism) is quantized, giving rise to quantum mechanics etc.&lt;p&gt;* Matter fields are also quantized, hence their excitations behave like discrete particles - the ones we observe at the atomic scale, for instance.&lt;p&gt;* In hindsight, we should&amp;#x27;ve been able to predict this after E = mc^2 telling us energy &amp;lt;&amp;gt; matter,  thus if energy is quantized so should matter.</text></comment>
<story><title>CERN experiment discovers five new particles</title><url>http://www.stfc.ac.uk/news/cern-experiment-discovers-not-one-but-five-new-particles/</url></story><parent_chain></parent_chain><comment><author>teddythetwig</author><text>I assume these particles were already predicted as part of the Standard Model?</text></comment>