MonkeyGG2
30 lines
1.6 KiB
HTML
30 lines
1.6 KiB
HTML
<p class="lead">You discovered the bottom quark!</p>
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<section data-min-level="1">
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<h4>The bottom (or beauty) quark</h4>
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<img class="img-responsive" src="assets/info/b.png" alt="A plot from one of the original publications" align="center">
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<p>
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The bottom (or beauty) quark is a third-generation quark with a charge of −⅓ times the electron charge.
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It has a large mass (around 4.2 GeV/c<sup>2</sup> — more that four times the mass of a proton!).
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The bottom quark is notable because it is a product in almost all decays of the top quark and is a frequent decay product for the Higgs boson.
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</p>
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</section>
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<section data-min-level="5">
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<h5>History of the discovery</h5>
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<p>
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The bottom quark was predicted in 1973 by physicists Makoto Kobayashi and Toshihide Maskawa as part of their explanation for CP violation.
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The name “bottom” was introduced in 1975 by Haim Harari.
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The bottom quark was discovered in 1977 by the Fermilab E288 experiment team led by Leon M. Lederman, when collisions produced bottomonia (mesons with a bottom quark and its antiquark).
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Kobayashi and Maskawa won the 2008 Nobel Prize in Physics for their explanation of CP violation.
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Upon its discovery, there were efforts to name the bottom quark “beauty”, but “bottom” became the predominant name.
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</p>
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</section>
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<hr>
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<h5><b>Resources</b></h5>
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<ul>
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<li><a href="http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.39.252" target="_blank">The original presentation of S. W. Herb et al.</a></li>
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<li><a href="http://en.wikipedia.org/wiki/Bottom_quark" target="_blank">The bottom quark on Wikipedia</a></li>
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</ul>
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